Prof. N.S.B.M. Atapattu
+94 71 530 3531
+94 41 222 2681

Prof. N.S.B.M. Atapattu

Professor (Chair)
Department of Animal Science,
Faculty of Agriculture, University of Ruhuna,
Mapalana, Kamburupitiya,
Sri Lanka 81100
Profile QR Code
Research Interests
Poultry Nutrition Ammonia emission from poultry litter Sustainability assessments Animal Welfare
Specializations
Poultry Nutrition Sustainable Livestock Production Systems Ammonia Emission
Qualifications

Biography

Prof. N.S.B.M. Atapattu is the Chair Professor of Animal Science at the University of Ruhuna, Sri Lanka. His research focuses on poultry nutrition, ammonia emissions from poultry litter, sustainability and circularity of livestock systems, and animal welfare. He holds a BSc in Agriculture with First-Class Honours from the University of Ruhuna, an MSc (First Class) in Animal Physiology from Massey University, New Zealand, and a Ph.D. from Ruhuna. He has published over 40 refereed journal articles, 55 conference papers, and 130 conference abstracts, and authored four books. Beyond research, he has mentored over 100 undergraduate and postgraduate students and provided strategic leadership as Chairman of the Committee on Livestock and Poultry under the Sri Lanka Agricultural Research Policy (CARP), Advisor to the Sri Lanka Association for Animal Nutrition, Head of the Department of Animal Science, and Director of the Centre for Quality Assurance of the University. His global perspective has been enriched by prestigious fellowships, including a Fulbright Scholarship at the University of Arkansas and Commonwealth Fellowships in New Zealand and the United Kingdom.

Journal Publications

Total: 40
01
Hasitha Priyashantha, Janak K. Vidanarachch2, Imasha S. Jayathissa, G.L.L.P. Silva, N.S.B.M. Atapattu, Shishanthi Jayarathna. (2026). Frontiers in Animal Science. (In press)
02
Al Anas, M., Mubarok, M. A., Adi, V. B., Aprianto, M. A., Hidayaturrohman, N. A., Sapan, Y and Atapattu, N. S. B. M. (2026). Optimizing broiler feather waste as a nitrogen-rich substrate to enhance black soldier fly larvae growth and nutrient composition. Journal of Agriculture and Food Research, 102681.
03
Al. Anas, N.S. B.M. Atapattu, K.B. Nelson, S.W. Crafton, M.T. Kidd (2024) Glycine, serine, and arginine additions to Cobb 500 female broilers fed dietary variations in crude protein. Journal of Applied Poultry Research. 33:100442.
04
Vijayakumar, S., S.T.D De Silva, N.S.B.M Atapattu and D. Senaratne1 M. Pagthinathan (2024). Moringa and Sesbania leavesin layer chicken pens as an edible environmental enrichment: Effects on performance and, physical and organoleptic properties of eggs. Iranian Journal of Animal Science. 14(3):471-478.
05
Thennakoon, T.M.I.D., Udagedara, U.G.D.M.B., Atapattu, N.S.B.M. and Senaratna, D., 2024. Effects of Salvinia as a Broiler Litter Material on Growth Performance, Behavior, Welfare parameters, Litter Characters and Ammonia Emission. Poultry Science, p.103542.
06
Suwarkka Yogeswaram,,Keerthana Kumareshwaran and Atapattu N.S.B.M. (2024) A comparison of environmental performance of electronic and bound-thesis using life cycle assessment. Cleaner Production. 437: 140650.
07
De Silva, S.T.D., Atapattu, N.S.B.M. and Wasantha Kumara, K.L. (2023). The water footprint of Oyster mushroom (Pleurotus ostreatus) cultivation under small-scale polybag farming conditions in Sri Lanka. The Journal of Agricultural Science-Sri Lanka. 18(2):172-182.
08
Atapattu, N.S.B.M., Lakmal, L.G.E. and Perera, P.W.A. (2017). Effects of Two Litter Amendments on Air NH3 Levels in Broiler Closed-Houses. Asian-Australian Journal of Animal Science. 30(10):1500-1506.
09
Atapattu, N.S.B.M.andDe Silva, L.M.S. (2016).Effects of Gradual Feed Dilution with Inert or Less Nutritive Materials on Growth Performance, Feed Cost and Meat Organoleptic Properties of Broiler Chicken. Brazilian Journal of Poultry Science. 18(3):427-434.
10
Atapattu, N.S.B.M.and Senevirathne T.S.M.S. (2013). Effects of increasing levels of dietary cooked and un-cooked banana meal on growth performance and carcass parameters of broiler chicken. Pakistan Veterinary Journal. 33(2):179-182.
11
Atapattu,N.S.B.M.,Senarathna, D. and Belpagodagamage, U.D.A. (2008). Comparison of ammonia emission rates from three types of broiler liters. Poultry Science. 87:2436-2440.
12
Atapattu, N.S.B.M.and Wickramasinghe, K.P. (2007). The use of refused tea as a litter material for broiler chickens. Poultry Science. 86:968-972.
13
Belpagodagamage, U.D., Atapattu, N.S.B.M., Wanniarachchi, S.D. and Seresinghe, R.T., 2021. Evaluation of refused tea as an alternative litter material to paddy husk: Effects on broiler performance their behaviour, litter properties and ammonia emission. Tropical Agricultural Research and Extension, 24(2).107-116.
14
Mudalige, S.K.K., Atapattu, N.S.B.M. and Dharmadasa, N.P. (2018). Academic performance of undergraduates of three new degree programs as affected by gender and, A/L study stream and subject performance. Tropical Agricultural Research and Extension. 21(3-4). 59-67.
15
Atapattu,N.S.B.M.and Wimalarathne, H.D.A. (2018). Nutrition Knowledge and Misconception about Animal Source Food among Sri Lankans. Journal of Agricultural Sciences. 13(2):130-140.
16
Atapattu, N.S.B.M.,Gunawardana, W.W.D.A.,Abeywickrama, L.M. and Munasinghe, M. (2017). Comparison of Production and Economic Performances of BroilersRaisedunder Naturally VentilatedOpen-House and Tunnel Ventilated Closed-House Systems in Sri Lanka. Tropical Agricultural Research and Extension. 20 (3 & 4):76-89
17
Katukurunda,K.G.S.C., Atapattu, N.S.B.M.&Perera, P.W.A. (2017).Effects of mega doses of phytase on growth performance, bone status and nutrient excretion of broilers fed diets containing high levels of rice bran. Iranian Journal of Poultry Science. 7(1):119-127.
18
Atapattu,N.S.B.M.andMadushanka, K.P.K. (2015). Effects of Heating of Dietary Rice Bran on Growth Performance and Serum Cholesterol Levels of Broiler Chicken. Journalof Agricultural Science.10(3):151-157.
19
Atapattu, N.S.B.M., Kumari, K.K.E.I.U., Pushpakumara, K.K.A. andMudalige, S.K.K. (2015). Adoption of DUNDEE DREEM Questionnaire to Assess the Educational Environment of an Agriculture Degree Programme. Tropical Agricultural Research and Extension.18(1), 22-30.
20
Abeysekara, T.S. andAtapattu, N.S.B.M. (2016). Effects of dietary coconut oil meal with or without an enzyme mixture on laying performance of Japanese quail (Coturnixcoturnix). Tropical Agricultural Research. 27(4):414-419.
21
Maduwanthi,W.T.S.,Mudalige,S.K.K.andAtapattu, N.S.B.M. (2015). Academic performance and the perception about the educational environment: A comparison between ethnic minority and majority students following three Degree programs. Tropical Agricultural Research and Extension. 18(3):107-111.
22
Abeyrathna, H.M.W.N.andAtapattu, N.S.B.M. (2014).Effects of three levels of dietary rice bran levels with or without phytase, on performance and egg parameters of Japanese quail., Tropical Agricultural Research. 26(1), 39-47
23
Atapattu, N.S.B.M. andSudusinghe, S. (2013). Wet feeding mitigates the adverse effects of high dietary rice bran levels on growth performance and nitrogen retention of broiler finishers. Iranian Journal of Applied Animal Science.Pp. 153-160.
24
Atapattu,N.S.B.M. and Mendis, A.P.S. (2013). Evaluation of Canistel (Pouteriacampechiana) fruit meal as a feed ingredient for poultry. Iranian Journal of Applied Animal Science pp, 177-183.
25
Atapattu, N.S.B.M.,Sanjeewani, K.G.S. andSenaratna, D. (2013). Evaluation of Lawalu (Chrysophyllumroxburghii) Fruit Meal as a Feed Ingredient for Broilers. Tropical Agricultural Research and Extension. 16(2):35-39.
26
Wickramasinghe, K.P., Atapattu, N.S.B.M. andSeresinghe, R.T. (2013). Effects of two dietary non-phytate phosphorus, citric acid and rice bran levels on growth performance and nutrient retention of broiler chickens. Iranian Journal of Applied Animal Science. 4(4):809-815.
27
Weerasingha, A.S. and Atapattu, N.S.B.M.(2013) Effects of Fenugreek (Trigonellafoenum-graecum L.) seek powder on growth performance, visceral organ weight, serum cholesterol levels and the nitrogen retention of broiler chicken. Tropical Agricultural Research. 24(3):289-295.
28
Piyaratne, M.K.D.K., Dias, N.G.J. andAtapattu, N.S.B.M. (2012). Linear model based software approach with ideal amino acid profiles for least cost poultry ration formulation. Information Technology Journal. 11: 788-793.
29
Sandika, A.L., Atapattu, N.S.B.M. and Weerasinghe, W.M.C.B (2012). Factors affecting the academic performance of Agriculture undergraduates: A case study in Faculty of Agriculture, University of Ruhuna. SAARC Journal of Educational Research. 9:1-14.
30
Atapattu, N.S.B.M. andBelpagodagamage, U.D. (2010). Effect of dietary chilli powder on growth performance and serum cholesterol contents of broiler chicken. Tropical Agricultural Research and Extension. 13(4):106-109
31
Silva, P.H.G.J., Atapattu, N.S.B.M. andSandika, A.L. (2010a). A study of the socio economical parameters associated with mean purchasing and consumption pattern. A case study of Southern Province, Sri Lanka. The Journal of Agricultural Sciences. 5(1):71-79.
32
Silva, P.H.G.J., Atapattu, N.S.B.M. and Sandika, A.L. (2010b). Undergraduates’ attitude toward the use of animal in research and other purposes are influenced by their field of study. Pakistan Journal of Social Sciences. 7(6):404-407.
33
Piyaratne, M.K.D.K., Atapattu, N.S.B.M.,Mendis, A.P.S. and Amarasinghe, A.G.C. (2009). Effects of balancing rice bran based diets for up to four amino acids on growth performance of broiler chicken. Tropical Agricultural Research and Extension. 12(2):57-61.
34
Wickramasinghe, K.P.,Atapattu, N.S.B.M. andGunarathne, S. P.(2009). Effects of citric acid on growth performance and nutrient retention of broiler chicken fed maize-rice bran based diets. Sri Lanka Journal of Animal Production. 5(1):15-26
35
Atapattu N.S.B.M. andLal P.K. (2009). Effects of Feed Withdrawal on Growth Performance and Carcass Parameters of Broiler Chicken. Sri Lanka Journal of Animal Production. 5(1):1-14.
36
Senaratna D, Samarakone T, Atapattu NSBM and Nayanarasi HAD 2008 Effect of the Colour of Light on Growth Performance, Behaviour and Bone Parameters of Broiler Chicken. J. Tropical Agriculture Research, 20: 185-192.
37
Senarathne, D., Atapattu, N.S.B.M., andBelpagodagamage, U.D. (2007). Saw dust and refuse tea as alternative litter materials for broilers. Tropical Agricultural Research. 19:283-289.
38
Ramanayaka, J.C., and Atapattu, N.S.B.M. (2006).Fish anesthetic properties of some local plant materials. Tropical Agricultural Research and Extension. 9: 143-148.
39
Atapattu, N.S.B.M.,Davie, P.S. andHendricks, W. (2005). Effects of dietary beta adrenergic agonist on growth and body composition of rainbow trout (Oncorhynchusmykiss). Tropical Agricultural Research and Extension. 8:91-97.
40
Atapattu, N.S.B.M. and Nelligaswatta, C.J. (2005). Effects of citric acid on the performance and the utilization of phosphorus and crude protein in broiler chickens fed on rice by-products based diets. International Journal of Poultry Science. 4(12)990-993.

Conference Publications

Total: 178
01
A.G.G.D. Wijerathna, W.T.L. Fonseka, P.G.S. Chathuranga, and N.S.B.M. Atapattu (2025.) Insights from Activity – Based Water Use Analysis in Broiler Meat Processing; A Case Study. Proceedings of the World’s Poultry Science Association Sri Lanka Brach Conference. Pp 13-16.
02
Palliyaguru, O.G. and Atapattu, N.S.B.M (2024). A Comparison of Key Characteristics of Undergraduate and SLQF Level 10 Master‘s Theses: A Case Study in the Faulty of Agriculture, University of Ruhuna In: Proceedings of the Fourth Ruhuna Quality Assurance Sessions, 30th Dec 2024, University of Ruhuna..69-76.
03
Mudalige, S.K.K., Gunawardena, O.B. and Atapattu, N.S.B.M. (2024). Voluntary Discontinuation and Timely Completion Rates of Undergraduate Programs: A Case Study in the Faculty of Agriculture, University of Ruhuna, Sri Lanka. Proceedings of the Fourth Ruhuna Quality Assurance Sessions, University of Ruhuna, 30th Dec 2024. Pp 16-22.
04
Ranasinghe HHA1, Kumara RP2, Li Ang2 and Atapattu NSBM (2024) Effects of a commercial probiotic mixture containing Bacillus subtilis on growth, welfare and litter parameters of broilers fed rice-based diets with two energy levels. Proceedings of the World’s Poultry Science Association Sri Lanka Branch Conference. Pp.
05
Bandara, L.M.T.L, Atapattu, N.S.B.M and Gajaweera C.J (2023) An Analysis on the Demographic Variable Associated with the Chicken meat Consumption in Sri Lanka. Proceedings of the World’s Poultry Science Association Sri Lanka Branch Conference.Pp 10-12.
06
Malinga, R.D.N. and Atapattu N.S.B.M. (2022). Effects of Kaolinite, Acidified Bamboo Biochar or their combinations on the Nitrogen Losses from Spent Broiler Litter. Proceedings of the World’s Poultry Science Association Sri Lanka Branch Conference.
07
Atapattu, NSBM, Mudalige, SKK and Prasangika ADP (2021) Students’ Perception of and Performance in In-class Debates: A Case Study. Proceedings of the 17th Annual SLAIHEE Conference on Higher Education in Sri Lanka. Pp 28-33.
08
Lavanniya K and AtapattuN. S. B. M. (2020)Effect of coconut-shell biochar on ammonia emission from broiler litter. Proceedings of the Technical Sessions of the World’s Poultry Science, Sri Lanka Branch.
09
Leelarathne BSS, Atapattu NSBM*, Kumara RP and Premasiri HP(2020). A comparison of growth performance and feed cost of broilers fed a phytogenic growth promoter and an AGP. Proceedings of the Technical Sessions of the World’s Poultry Science, Sri Lanka Branch.
10
Attanayaka, K.A.R.R.N., Atapattu, N.S.B.M. and Pathirana, I.N. (2019).Effects of Active Dried Yeast and Supplementation on Growth Performance, Visceral Organ Weights, Nutrient Digestibility and Serum Lipid Profile of Broiler Chicken. Proceedings of the XVIII Annual Scientific Sessions of the World’s Poultry Science Association Sri Lanka Branch. Pp 13-17.
11
Chathurika, T.G.N.T., Perera, P.W.A. and Atapattu, N.S.B.M. (2018). Effectiveness of composting as a strategy of waste management among livestock farmers in Galle District. Proceedings of the Jaffna University International Research Conference. Pp 44-46.
12
Koshila, H.W.S., Atapattu, N.S.B.M. and Gunawardana, W.W.D.A. (2018). Recent geographical migration pattern of Indian peafowl (Pavocristatus) in Galle and Matara District. Proceedings of the International Symposium on Agriculture and Environment. 51-54.
13
Denuwan, B.B.T.H., Abeywickrama, L.M., Shashikala, K.K.G.A. and Atapattu N.S.B.M. (2017). Women Entrepreneurs in Southern Province of Sri Lanka: Problems and Prospects. Proceedings of the 6th International Conference on Management and Economics. University of Ruhuna. Pp. 125-137.
14
Rajitha, H.G.L., Gunawardhana, P.R., Anuththara,V.G.S.,Mudalige, S.K.K. andAtapattu,N.S.B.M.(2017).Towards Making Wholesome Kottu: Common Recipes and Serving Numbers of Food Groups. Proceedings of the International Symposium of Agriculture and Environment 2017.
15
Prasangika,A.D.P., Fonseka,W.T.L. andAtapattu,N.S.B.M.(2016).Animal source food consumption pattern among Sri Lankans: A 24-hours recall study in Galle and Matara District. Proceedings of the International Symposium in Agriculture and Environment.
16
Madusanka, S.T., Belpagodagamage, U.D. andAtapattu N.S.B.M. (2014). Effects of three dietary metabolizable energy levels on growth performance and carcass fat contents of 28-35 days old broiler chicken. Proceedings of the Jaffna University Research Conference. Pp 203-205.
17
Atapattu, N.S.B.M., Madusanka,S.T.,Wimalarathne,H.D.A. and Mudalige, S.K.K. (2014). Determinants of the Final Year Specialization Choice of Undergraduates: A Case Study the Faculty of Agriculture, University of Ruhuna. Proceedings of the International Symposium on Agriculture and Environment. Pp. 407-412.
18
Chandrasiri, W.C.J. andAtapattu, N.S.B.M. (2014). Effects of Four Herbal Feed Additives on Egg Production and Yolk Cholesterol Contents of Layer Chicken. Proceedings of the International Symposium on Agriculture and Environment. Pp 291-294.
19
Prabhashini, S.D., Atapattu, N.S.B.M.,Perera, P.W.A. and Gunawardena, W.W.D.A. (2014).Effects of feeding Hybrid Napier (CO-3) alone or supplemented either with Coconutpoonac, Rice bran or Dairy max on production performance and fecal count of goat. Proceedings of the International Symposium on Agriculture and Environment. Pp. 279-282
20
Madusanka,S.T.,Atapattu, N.S.B.M. andGunawardane, W.W.D.A. (2013). A comparison of the Reproductive Performances of Purebred Jersey and Jersey× Friesian Crossbred Cows under Local Conditions. Proceedings of the International Symposium on Agriculture and Environment. Student Session. Pp.299-305.
21
Chaminda, K.G.S. and Attapattu N.S.B.M.(2013). Water footprint of chicken egg production under medium scale farming conditions of Sri Lanka: An analysis. Proceedings of the 2nd International Symposium of South Eastern University. Pp.34-37.
22
Kumara, D.P.S.L. and Atapattu, N.S.B.M. (2013). Awareness of Three Communities about the Nutritional Importance of Animal Source Foods. Proceedings of the International Symposium on Agriculture and Environment. Pp. 590-595.
23
Jinasena, A.K.G.S., Atapattu,N.S.B.M.andSenaratna, D. (2013). Effects of citric acid and multi enzyme supplementation on growth performance of broiler chicken fed diets containing rice bran. Proceedings of the International Symposium on Agriculture and Environment. Pp. 171-174.
24
Attapattu, N.S.B.M.,Gunawardane, N. M. and Chaminda, K.G.S.(2013). Interrelation- ships between two gait scores, tibia ash contents, body weights and latency-to-lie of commercial broiler chicken. Proceedings of the International Symposium on Agriculture and Environment. Pp. 175-178.
25
Sampath, H.K.R. andAtapattu, N.S.B.M. (2013). Effects of Cinnamon (Cinnamomumzeylanicum) barkpowder on growth performance, carcass fat and serum cholesterol levels of broiler chicken. Proceedings of the 3nd International Symposium of South Eastern University. Pp. 42-46
26
Rathnayaka, R.M.A.J.andAtapattu, N.S.B.M.(2013). Effects of the withdrawal of vitamin trace mineral mixture from broiler finisher diet supplemented with phytase on growth performance, visceral organ weights and feed cost. Proceedings of the 2nd International Symposium of South Eastern University. Pp. 52-56.
27
Kumari,K.K.E.I.U.,Pushpakumara, K.K.A.,Atapattu, N.S.B.M. and Sandika, A.L.(2012). Analysis of the question papers of the BSc (Agriculture) degree programme of the Faculty of Agriculture, University of Ruhuna, using revised Bloom’s taxonomy. Proceedings of the International Symposium on Agriculture and Environment. Faculty of Agriculture, University of Ruhuna, Sri Lanka. 29Nov, 2012. Pp 357-359.
28
Atapattu, N.S.B.M.,Pushpakumara, K.K.A. andKumari, K.K.E.I.U. (2012).Effects of wet feeding on growth performance and visceral organ weights of broiler chicken under two day-time ambient temperature levels. Proceedings of the International Symposium on Agriculture and Environment. Faculty of Agriculture, University of Ruhuna, Sri Lanka. 29Nov, 2012. Pp 106-108.
29
RasikaSampath, H.K.andAtapattu, N.S.B.M. (2012). Effects of curry leaf powder on growth performance, carcass fat and serum cholesterol levels of broiler chicken. Proceedings of the International Symposium on Agriculture and Environment, Student Session. Pp. 14-17.
30
Prabhashini, S.D., Atapattu, N.S.B.M. and Gunawardane, W.W.D.A. (2012).Potential use of Erythroxylummoonii (Batakirilla) as an anti helminthes herb for controlling worms in goat. Proceedings of the International Symposium on Agriculture and Environment, Student Session. Pp.18-21
31
Wanasinghe, H.W.N.T., Atapattu, N.S.B.M. andGunawardena, W.W.D.A. (2012) An investigation on present status of horse management practices in Sri Lanka. Proceedings of the International Symposium on Agriculture and Environment, Student Session. Pp.76-81.
32
Prathapage, K.T., Abeywickrama, L.M. andAtapattu, N.S.B.M. (2012). Assessing the Carbonfoot print of milk production under small scale farming conditions. Proceedings of the International Symposium on Agriculture and Environment, Student Session. Pp.124-127.
33
Atapattu, N.S.B.M. (2012). Strategies to reduce the water footprint of broiler meat production: An analysis. Proceedings of the International Conference on the Impact of Climate Change on Agriculture. Faculty of Agriculture, University of Ruhuna, Sri Lanka. Pp 158-164
34
Vitharana, J., Atapattu, N.S.B.M.,Abeywickrama, L.M. andNilantha De Silva (2012). Estimation of ammonia emission from broiler and layer litters udder hot-humid small scale farming conditions In Sri Lanka. Proceedings of the First National Symposium on the Potential Health and Environmental Impacts of Exposure to Hazardous Natural and Man-Made Chemicals and their Proper Management. 23rd Nov 2012, Colombo City Hotel, Sri Lanka. Pp 31-33
35
Paranawithana, D.R.,Atapattu, N.S.B.M. andSenaratna, D. (2009).Behavior of Laying Hens Subjected to Noise Induced Fear Condition. Proceedings of the Sixth Academic Sessions. University of Ruhuna. 303-308
36
Senaratna, D., Atapattu, N.S.B.M., Belpagodagamage, U.D., Piyadigama, B., Dahanayake, V.D., Prasanna, K.N., Madhawa, B.K. and Lal, P.K. (2009). A comparison of the behaviour of free-range laying hens in a backyard system with commercially reared laying hens. Proceedings of the Sixth Academic Sessions. University of Ruhuna. 309-311
37
Atapattu,N.S.B.M. andChandrasiri, W.C.J. (2009). Effects of a qualitative feed restriction strategy on the growth performance and feed cost of mature broiler chicken. Proceedings of the Sixth Academic Sessions. University of Ruhuna. 113-118
38
Atapattu, N.S.B.M. andNayanarasi, H.A.D. (2009a). Effects of dietary phytase above industry standards on the water intake pattern of broiler chicken. Proceedings of the Sixth Academic Sessions. University of Ruhuna. 309-312
39
Atapattu, N.S.B.M. andNayanarasi, H.A.D. (2009b). Effects of shell grit on physical and nutritional properties of chicken egg. Proceedings of the Sixth Academic Sessions. University of Ruhuna. 129-131
40
Atapattu,N.S.B.M., andBelpagodagamage, U.D. (2008). Effects of lime application on some physio-chemical properties of broiler litter. Sri Lanka Journal of Animal Production. Proceedings of Technical Session. Tenth AGM of Sri Lanka Association of Animal Production. Pp 109-110
41
Atapattu, N.S.B.M.andNayanarasi, H.A.D. (2008). Digestibility of rice bran fish silage mixture in broilers. Sri Lanka Journal of Animal Production. Proceedings of Technical Session. Pp. 107-108
42
Piyadigama, B. andAtapattu, N.S.B.M. (2008). Effect of fear stress on gastric transit time of layer chicken. Sri Lanka Journal of Animal Production. Proceedings of Technical Session.Pp 91-92
43
Atapattu, N.S.B.M. andLal, P.K. (2008). Effects of the feeding of maize soybean meal mixture on growth and carcass parameters of mature broiler chicken. World’s Poultry Science Sri Lanka Branch Journal.107-108
44
Atapattu, N.S.B.M.andBelpagodagamage, U.D. (2008). Effects of a qualitative feed restriction strategy on growth performance, carcass composition and feed cost of broiler chicken.World’s Poultry Science Sri Lanka Branch Journal. Pp 109-110
45
Atapatttu, N.S.B.M. and Forbes, J. M. (2007). Ability of Broiler Chickens to Select Appropriate Available Phosphorus Levels When Inorganic Phosphorus Sources are offered as a Choice. British Poultry Abstract. 3: 32-33
46
Sampath, S.J. and Atapattu, N.S.B.M. (2007). Effects of wetting plant feed ingredients on growth performance and tibia ash percentage of broiler chicken. British Poultry Abstract. 3: 33-34.
47
Atapattu,N.S.B.M.,Liyanage, L.H.D. andRangoda, B.D. P. (2007). Effect of dietary citric acid on water consumption pattern of broiler chickens. Proceedings of the fifth Academic Sessions of the University of Ruhuna. 5th March 2008. Pp 143-148
48
Atapattu, N.S.B.M.andVidanapathirana, A.I.K. (2007). Litter type preference of broiler chicks during brooding period (2007). Proceedings of the fifth Academic Sessions of the University of Ruhuna. 5th March 2008. Pp 76-80
49
Atapattu, N.S.B.M.andGamage, V.L.G. (2007). Water consumption pattern of laying hens under hot humid conditions. Proceedings of the fourth academic sessions of University of Ruhuna, Sri Lanka. Pp 214-220
50
Atapattu, N.S.B.M., Paththinige, S.S., Chandana, G.A. andGajaweera, C.J. (2006). Behaviour of the broiler chicken as affected by the form of diet. Proceedings of the third academic sessions of the University of Ruhuna, Sri Lanka.Pp 41-43
51
Senarathne, D., Serasinghe, R.T., Pathirana, K.K. and Atapattu, N.S.B.M. (2006). Adaptability of dry weight rank method for botanical analysis of natural pasture grass in coconut plantation. Proceedings of the third Academic Sessions, University of Ruhuna, Sri Lanka.Pp 50-51
52
Rathnayaka, C., Atapattu, N.S.B.M.andWickramasinghe, K.P. (2006). Validation of infrared moisture meter to determine moisture contents of poultry litter materials. Proceedings of the fourth academic sessions of University of Ruhuna, Sri Lanka.Pp 211-213.
53
Lal, P.K. and Atapattu,N.S.B.M.(2006). Effects of dietary physical form on performance and water intake of broiler chicken. Proceedings of the fourth academic sessions of University of Ruhuna, Sri Lanka.Pp 206-210.
54
Atapattu, N.S.B.M. and Gamage, V.L.R. (2006). Effects of the supplementation of diets containing high levels of rice bran with microbial phytase on the performance of broiler chicken. Proceedings of the fourth academic sessions of University of Ruhuna. Pp66-69.
55
K. Satheeskumar, Y.Thiviyalan, Fernando, L.B and Atapattu N.S.B.M (2026). Effect of Poultry Offal as a Substrate for Black Soldier Fly Larvae Production. Proceedings of the 30th Internation Forestry and Environment Symposium. Pp 108.
56
Atapattu N.S.B.M. (2024). Poultry for SHARP diets. Proceedings of the International Symposium of Agriculture and Environmental. Faculty of Agriculture, University of Ruhuna, Sri Lanka. Pp 10.
57
Weerasinghe J.A.P.U, Atapattu N.S.B.M. and Narayana N.M.N.K. (2024)
58
An Analysis of the Nutritional Fact Panel Information and Label Features of Animal-Source Foods Marketed in Sri Lanka. Proceedings of the Annual Scientific Sessions of the Nutrition Society of Sri Lanka. Pp 57.
59
Ahamed, M.J. I, Atapattu, N.S.B.M and Mannakkara A (2024) Effects of Ethanol Extracts of Plant Materials High in Polyphenol and Favonoid on Nitrogen loss and Nematode Count of Broiler Litter During Storage. Proceedings of the 28th Forestry and Environment Symposium. Pp.102.
60
Perera, A.J.S. and Atapattu, N.S.B.M (2023) Ammonia capturing capacity of biochar and kaolinite. Proceedings of the 27th Forestry and Environment Symposium. Pp. 58.
61
Madumadhawa, M.H.D. and Atapattu, N.S.B.M. (2023) Emphasis Given to Climate Change, Sustainability, and Environmental Issues in Subject Benchmark Statements Recommended for Undergraduate and Postgraduate Programmes of Sri Lanka. Proceedings of the International Conference on Building Resilience in Tropical Agro-ecosystems. Pp. 110.
62
Atapattu NSBM, Gunawardana WWDA, Abeywickrama LM, Munasinghe M
63
Contribution of backyard poultry production systems towards the household nutritional status in Sri Lanka. Proceedings of the International Conference on Building Resilience in Tropical Agro-ecosystems. Pp. 70.
64
Sewwandi, T.A.D, Wijekoon, W.M.C.J, Jayasinghe G.Y and Atapattu. N.S.B.M. (2021). Student Feedback on Online Presentation and Evaluation as the Summative Assessment of an Undergraduate Course at the Faculty of Agriculture, University of Ruhuna. Proceedings of the Ruhuna Quality Assurance Sessions 2021 (RUQAS 2021). University of Ruhuna, Sri Lanka. 21st September 2021. Pp. 55.
65
Siriwardana, S.K.P.M and Atapattu, N.S.B.M (2022). Effects of alum and acidified bamboo biochar on nitrogen loss from broiler litter during storage Proceedings of the 2022 International Poultry Scientific Forum Georgia World Congress Center, Atlanta, Georgia January 24-25, 2022. Pp 84.
66
Senaratna D, Wijethilake K.W.M.A.U., Atapattu N.S.B.M. (2022). Discomfort Behaviour and Hair Coat Density of Muurah × Nili-Ravi Cross-bred Buffaloes as Affected by Louse (Haematopinus tuberculatus) Treated with Acaricides. Proceedings of the International Forestry and Environment Symposium Volume 26. Pp 44.
67
Senaratna D., Marasinghe M.M.C.S. and Atapattu N.S.B.M. Welfare issues in intensive broiler production on the perception reflected by different social strata: A case study in Matara District. Proceedings of the 9th Ruhuna International Science and Technology Conference. Pp 80.
68
Buddika, MGK, Atapattu NSBM, Pathirana IN, Premakumara, MMK and Lal PK(2021).
69
Effects of Dietary Yeast Cell Wall Supplementation on Growth Performance and Feed Cost of Broilers. Proceedings of the 18th Academic Sessions. University of Ruhuna. Pp2.
70
Akram, ATA, Atapattu, NSBM and Gunawardena WWDA (2020). Vulnerability of Farming Communities Practicing Livestock Monocultures or Crop-Livestock Integrated Systems to Climate Change: A Case Study in Ampara District. Proceedings of the International Research Conference of Uva-Wellassa University, Sri Lanka. Pp. 15.
71
Atapattu NSBM and Mudalige SKK (2020). An Analysis of the Relationship between Advanced Level Z-Score and Academic Performance of Graduates of the Faculty of Agriculture, University of Ruhuna. Proceedings of the International Symposium on Agriculture and Environment. Pp. 86.
72
D. Senaratna, V.I. Chathuranga and N.S.B.M. Atapattu (2020). Ranking of Welfare Issues in Dairy Cattle Production in Tropics Based on the Attitudes of Different Social Strata: A Case Study. Proceedings of the International Symposium on Agriculture and Environment. P. 169.
73
Subasini, S., Atapattu, NSBM and Senaratne D and Ang Li (2020). Effect of Dietary Supplemental Bile Acid on Growth Performance, Nutrient Digestibility and Visceral Organ Weight of Broiler Chicken. Proceedings of the International Symposium on Agriculture and Environment. Pp 175.
74
Senaratna D, PriyadarshanieWAS and Atapattu NSBM (2020) Vocalization behavior of goats (Capra hircus) in relation to two routine management practices: Feeding and Milking. Proceedings of 7th Ruhuna International Science and Technology Conference. University of Ruhuna, January 22, 2020. Pp 7.
75
Senaratna D, Senarath DACS and Atapattu NSBM (2020) Assessment of vocalization behavior of dairy cows in relation to feeding practice as a measure of welfare. Proceedings of 7th Ruhuna International Science and Technology Conference. University of Ruhuna, January 22, 2020. Pp 90.
76
Atapattu, N.S.B.M.,Abeywickrama, L.M., Gunawardane, W.W.D.A. and Munasinghe, M. (2019). Environmental Performance of Backyard Poultry Production System in Sri Lanka. Proceedings of the 24th International Forestry and Environment Symposium. Pp 108.
77
Senaratna, D., Lingesh, S. and Atapattu, N.S.B.M.(2019). Investigation of Crop Damage Caused by Indian Peafowl (Pavocristatus) Based on Foraging Behavior. Proceedings of the 24th International Forestry and Environment Symposium. Pp 27.
78
Senaratna, D.,Viduranga, W.P.C. and Atapattu, N.S.B.M. (2019). Defecation behavior and feacal consistency of Freisian dairy cows affected by feeding time associated with milking. Proceedings of the International Symposium on Agriculture and Environment. Pp 71.
79
Atapattu, N.S.B.M, Sathkunanatha, A., Prasath, J.M. and Mudalige, S.K.K. (2019). Social integration among the undergraduates with different ethnic background in the Faculty of Agriculture, University of Ruhuna. Proceedings of the International Symposium on Agriculture and Environment. Pp 876.
80
Yashodha, W.A.I. and Atapattu, N.S.B.M. (2019).Present situation and opportunities for better geographical equality in livestock production in Sri Lanka: an analysis based on Gini co efficient. Paper accepted for the International Symposium on Agriculture and Environment, 2019. Pp. 67.
81
Gajanayake, A.J and Atapattu, N.S.B.M. (2019). Effects of three exogenous enzymes on in vitro pepsin digestibility of rapeseed meal, ground nut meal and corn gluten meal. Proceedings of the International Symposium on Agriculture and Environment. Pp 1.
82
Senaratna, D., Viduranga, W.P.C., Premakumara, M.M.K. and Atapattu, N.S.B.M.(2018). Changing of the Milking Method Affects the Milk Yield and Behaviour of JurseyCross Bred Cows. Proceedings of the 5thRuhuna International Science and Technology Conference. University of Ruhuna, Sri Lanka. Pp.8.
83
Atapattu, N.S.B.M.,Abeywickrama, L.M., Gunawardane, W.W.D.A.andMunasinghe, M. (2018).Litter Phosphorus Load and on Farm-Eutrophication Potential of Naturally Ventilated Open and Tunnel Ventilated-Closed House Broiler Production Systems. Proceedings of the 23rd International Forestry and Environment Symposium. Pp 63.
84
R.A.K.C,Ranasinghe., D.S.A,Wijesundara., P.W.A, Perera., N.S.B.M, Atapattu and W.W.D.A,Gunawardena.(2018). Efficacy of Three Types of Leaf Extractions of Erythroxylummoonii (Batakirilla) on Gastro Intestinal Nematodes of Goat. Proceedings of the International Symposium on Agriculture and Environment: Student Session. Pp 1.
85
LKHT Eranga, NSBM Atapattu, L ang and D Senaratna, Effect of two toxin binders on growth performance, visceral organ weights and feed cost of broilers fed diet containing aflatoxin high maize. Proceedings of the International Symposium on Agriculture and Environment 2018, Pp-12.
86
M.K.S,Maduranga.,N.S.B.M, Atapattu., D.Senaratne and L.B Perera (2018). Hatchery Candle-Out Eggs: A Novel Feed Resource for the Feeding of Growing Pigs.Proceedings of the International Symposium on Agriculture and Environment: Student Session). Pp 13.
87
Wanigasekara, B.M.M., Gunawardana, W.W.D.A., Atapattu, N.S.B.M. and. Priyadarshani, A. (2017).Food preference and behavior of white spotted mouse deer ((moschiolameminna) in captivity. Proceedings of the 6th International Conference of Sabaraganuwa University of Sri Lanka. 3-5th May 2017, Kandy Sri Lanka. Pp 125.
88
Yashodha, W.A.I.,Pethiyagoda,N.A.,Atapattu, N.S.B.M. and Gunawardena, W.W.D.A. (2017). A Comparison on Welfare Status of Dairy Cattle under Extensive and Semi Intensive Management Conditions: A Case Study in Mathugama Area, Western Province, Sri Lanka. Proceedings of the International Symposium on Agriculture and Environment. Pp. 12
89
Atapattu, N.S.B.M.,Gunawardana, W.W.D.A., Abeywickrama, L.M. and Munasinghe, M. (2016).Nitrogen Budget of Broiler Production under Closed-House Management Conditions. 21st International Forestry and Environment Symposium. Pp. 43.
90
Pethiyagoda,N.A.,Wickramasinghe, K.P. and Atapattu, N.S.B.M. (2013). Determination of optimum Dietary NaCl requirement for growth of Broiler finishers using choice feeding method. Proceedings of the 11th Academic Sessions of Ruhuna University, Sri Lanka. In: 11th Academic Sessions of University of Ruhuna, edited by Wanniarachchige, M.K.Pp 58. University of Ruhuna, Matara
91
Pethiyagoda, N.A.,Gunawardhana,H.G.T.N, Senaratna, D.,Katukurunda,K.G.S.C., Buddika, H.A.A.Y.andAtapattu, N.S.B.M. (2013).Behaviour of Japanese Quails (Coturnix japonica) kept on Different Bedding Materials. In: 11th Academic Sessions of University of Ruhuna, edited by M.K. Wanniarachchige. p. 115. University of Ruhuna, Matara
92
Senaratna,D.,Madusanka,A.A.P.,Atapattu,N.S.B.M.andGunawardena, W.W.D.A. (2013). Preference and Welfare Status of Broilers Exposed to Different Litter Substrates. In: 11th Academic Sessions of University of Ruhuna, edited by M.K. Wanniarachchige. p. 57 University of Ruhuna, Matara.
93
Perera, P.W.A., Atapattu, N.S.B.M.andSandaruwan, A.M.I. (2013).Effects of Herbal Anti-Microbial Amendments on Ammonia Emission from Broiler Litter. In: 11thAcademic Sessions of University of Ruhuna, edited by M.K. Wanniarachchige. p.60. University of Ruhuna, Matara
94
Gunawardana,H.G.T.N.,Katukurunda,K.G.S.C. and Atapattu, N.S.B.M. (2013). Effect of dietary crude Protein levels and phytase supplementation on contact dermatitis conditions and litter parameters of broiler chicken. In: 11th Academic Sessions of University of Ruhuna, edited by M.K. Wanniarachchige. p. 116. University of Ruhuna, Matara
95
Senaratna, D., Arachchige, M.A., Paramullage, I.P., Kumari, H.M.S., Kodithuwakkuarachchi, R.T. andAtapattu,N.S.B.M.(2011). Behaviour of goats in a natural forest with special emphasis on eating behaviour. Proceedings of the 16th International Forestry and Environment Symposium. 28-29th Oct. 2011. Pp 46.
96
Kumari, K.K.E.I.U., Atapattu, N.S.B.M., Pushpakumara, K.K.I. andSandika, A.L. (2012).A comparison of the students’ perception about the effectiveness of teacher guided student seminar and lectures as teaching methods. Proceedings of the 8th SDC-SLAIHEE Conference on Higher Education In Sri Lanka, Organized by the Sri Lanka Association for Improving Higher Education Effectiveness. 25th May 2012. University of Colombo. Pp 15.
97
Sandika, A.L., Atapattu, N.S.B.M., &Weerasinghe, W.M.C.B. (2011). Effects of A/L Z score and study habits on the academic performance of BSc Agriculture undergraduates of Ruhuna University. Proceedings of the 7th Joint SDC-SLAIHEE conference. University of Colombo, Sri Lanka. Pp 10.
98
Atapattu, N.S.B.M. (2011). A conceptual frame work to compute environmental costs of non-ruminant feed formulations. Proceedings of the 12th Asian Bioethics Conference. Taipe. 30th Sep 2011. Pp. 33
99
Atapattu, N.S.B.M. (2011). Water footprint of broiler meat production in Sri Lanka: An analysis. Proceedings of the 16th International Forestry and Environment Symposium. 28-29th Oct. 2011. Pp 76.
100
D.Senaratna, A.A.P. Madusanka, P.I.Peiris, H.M.S.S.K.Herath, R.T. Kodithuwakkuarachchi and N.S.B.M.Atapattu(2011) Behaviour of goats in a natural forest with special emphasis on eating behavior. Proc. International Forestry and Environment Symposium, University of Sri Jayawardanepura. Pg 46.
101
De Silva,P.H.G.J. and Atapattu, N.S.B.M. (2010). Effects of dried curry leaves and tea leaves on oxidative rancidity of rice bran. Proceedings of the Fifteenth International Forestry and Environment Symposium, 2010. Pp 94
102
De Silva, P.H.G.J., Atapattu N.S.B.M.andSandika, A.L. (2010). Ethical stands of undergraduates are influenced by their field of study. Proceedings of the Vavniya Campus Annual Research Session, 2010. Pp 11.
103
Senaratna, D., Atapatttu, N.S.B.M.,Weerasinghe, W.M.C.B.andGajaweera, C. I. (2010). Body weight influences the behaviour of intensively reared broilers in deep litter system. Proceedings of the 8th Academic Sessions. University of Ruhuna. Pp 199.
104
De Silva, P.H.G.J. and Atapattu, N.S.B.M. (2010). Effects of dried curry leaves and tea leaves on oxidative rancidity of rice bran. Proceedings of the Fifteenth International Forestry and Environment Symposium, 2010. Pp 94
105
Atapattu, N.S.B.M.andSudusinghe, H.S. (2010). Effects of restricted wet feeding on feed intake and growth performance of broiler chicks from day 10-20. Proceedings of the International Symposium, 2010. Faculty of Agriculture, University of Ruhuna. Pp 23.
106
Atapattu, N.S.B.M. andBandara, W.M.C.B. (2010). Effects of environmental temperature on gastric transit time, faecal nitrogen and dry matter contents of layer chicken.Proceedings of the International Symposium, 2010. Faculty of Agriculture, University of Ruhuna. Pp 107.
107
De Silva, P.H.G.J.,Atapattu, N.S.B.M. and Sandika, A.L. (2010). Do animal welfare concerns and degree programs affect the dietary identity of the undergraduates? Proceedings of the 66th Annual Sessions of the Sri Lanka Association for the Advancement of Sciences. Pp 134
108
Atapattu, N.S.B.M., Mudalige, S.K.K. andRangoda, B.D.P. (2010). Ethical issues of animal husbandry and experiments: An analysis of the views of Agriculture Undergraduates.Proceedings of the Seventh Academic Sessions of Ruhuna University. Pp. 112
109
Belpagodagamage, U.D., Subasinghe, S., Priyadarshani, S.H.R. andAtapattu, N.S.B.M. (2010). A comparison of the organic fertilizer value of three types of spent broiler litters Proceedings of the Seventh academic sessions of Ruhuna University. Pp 111.
110
Mudalige, S.K.K., Atapattu, N.S.B.M. and Rangoda, B.D.P. (2010). Three decades: Two curricula: An analysis of the results of B.Sc Agriculture graduates of Ruhuna University. Proceedings of the Seventh Academic Sessions of Ruhuna University. Pp 60
111
Atapattu, N.S.B.M. andPrabath, A.N.M.B.R. (2010). Effects of dietary energy and rice bran levels on growth performance and nutrient retention of broiler chicken. Proceedings of the Seventh academic sessions of Ruhuna University. Pp 57
112
Senaratna, D., Samarakoon, T., Atapattu, N.S.B.M., Paranawithana, D.R. and Chandrasiri, W.C.J. (2010). Light colour preference of broilers reared in tropical environment. Proceedings of the academic sessions of Ruhuna University
113
Piyarathna, D.,Atapattu, N.S.B.M., Mendis, A.P.S., andAmarasinghe,A.G.C. (2009). Effects of balancing diets for more amino acids on growth performance of broilers fed rice bran based diets. Proceedings of the 2nd National Symposium of the Faculty of Agriculture, University of Ruhuna. Pp 34.
114
Atapattu, N.S.B.M. andSudusinghe, H.S. (2009). Effects of five feed withdrawal periods on feed intake, growth performance and internal organ weights of young broiler chicks. Proceedings of the 2nd National Symposium of the Faculty of Agriculture, University of Ruhuna. Pp 43.
115
Senaratna, D., Samarakone, T., Atapattu,N.S.B.M.,Paranawithana, D.R. andChandrasiri, W.C.J. (2009). Performance and behaviour of broilers under three different artificial light colours. Proceedings of the 2nd National Symposium of the Faculty of Agriculture, University of Ruhuna. Pp 45.
116
Epa, S.T. andAtapattu, N.S.B.M.(2009).Development of low cost poultry feed pelleting machine. Proceedings of the 2nd National Symposium of the Faculty of Agriculture, University of Ruhuna. Pp 51.
117
Paranawithana, D.R., Atapattu,N.S.B.M., Senaratna, D., Ranasinghe, H.R.M.A.K.K.andWeerasinghe, W.M.C.B. (2009). A Study on bullock cart enterprise (2009). Proceedings of the 2nd National Symposium of the Faculty of Agriculture, University of Ruhuna. Pp 79.
118
Atapattu,N.S.B.M.,Chandrasiri, W.C.J. and Premakumara, M.M.K. (2009). A comparison of the physical properties and yolk cholesterol contents of different types of poultry eggs. Accepted to be presented at the 65th Annual Sessions of the Sri Lanka Association for the Advancement of Science.
119
Atapattu, N.S.B.M., Paranawithana., andSenaratna, D.R. (2009). An appraisal of the welfare standards of the bullock cart animals. Accepted to be presented at the 65th Annual Sessions of the Sri Lanka Association for the Advancement of Science.
120
Atapattu, N.S.B.M.,Chandrasiri, W.C.J., Liyanaarachchi, N., Wijetunga, S. andEpa, W.G.S.T. (2009). Use of broiler offal silage-rice bran pellets in a qualitative feed restriction strategy for mature broilers. Accepted to be presented at the 65th Annual Sessions of the Sri Lanka Association for the Advancement of Science.
121
Belpagodagamage, U.D., Atapattu, N.S.B.M. andLal, P.K. (2008). Boric acid reduces the ammonia emission from broiler litters.Proceedings of the thirteenth Forestry and environmental symposium, University of Sri Jayawadanapura. Pp 17
122
Nayanarasi, H.A.D.,Atapattu, N.S.B.M. and Dissanayake, N. (2008). Proximate composition and cell wall analysis of spent media of American Oyster mushroom: An alternative feed resource for ruminants Proceedings of the thirteenth Forestry and environmental symposium, University of Sri Jayawadanapura. Pp 74
123
Liyanaarachchi, N., Atapattu, N.S.B.M. andWijetunga, S. (2008). Development of broiler offal-rice bran mixture as an animal feed: In vitro nutritive value.Proceedings of the thirteenth Forestry and environmental symposium, University of Sri Jayawadanapura. Pp 75
124
Sanjeewani, K.G.S. and Atapattu, N.S.B.M. (2008).Lawulu (Chrysophyllumroxburghii) fruit: A potential feed resource for animal feeds.Proceedings of the thirteenth Forestry and environmental symposium, University of Sri Jayawadanapura. Pp 75
125
Weerasinghe, R., Atapattu, N.S.B.M.,Madage, S.S.K.andSulthanBawa, Y. (2008). A low cost feed for giant seabass (Latescalcarifer). Fourteenth Scientific Sessions of the Sri Lanka Association for Fisheries and Aquatic Resources. 9th June 2008. Sri Lanka Foundation Institute, Colombo, Sri Lanka. Pp 16.
126
Atapattu,N.S.B.M. andPremakumara, K. (2008).Effects of Masbedda (Gymnemasylvestre) and curry leave (Murayakoenigi) extracts on serum cholesterol contents of poultry. Proceedings of the second international symposium of Sabaragamuwa University, Sri Lanka, 8-12th July 2008. Pp 43
127
Atapattu, N.S.B.M. andAmarasekara, R.P. (2008).Digesta transit time in broiler chicken as affected by the age of the birds.Proceedings of the second international symposium of Sabaragamuwa University, Sri Lanka, 8-12th July 2008. Pp 44.
128
Atapattu, N.S.B.M., &Piyadigama, B. (2008).Effects of shell grit on gastric transit time of layer chicken. Proceedings of the second international symposium of Sabaragamuwa University, Sri Lanka, 8-12th July 2008. Pp 48.
129
Atapattu, N.S.B.M.andNayanarasi, H.A.D.(2008). Effect of storage time on some physical and nutritional parameters of chicken egg. Proceedings of the second international symposium of Sabaragamuwa University, Sri Lanka, 8-12th July 2008. Pp 50
130
Atapattu, N.S.B.M., &Amarasinghe, S.P. (2008). A comparison of behavior of broiler chicken on litter and wire mesh. Proceedings of the second international symposium of Sabaragamuwa University, Sri Lanka, 8-12th July 2008. Pp. 51
131
Piyaratne, M.K.D.K., Dias, N.G.J. andAtapattu, N.S.B.M. (2008). Development of a linear model based computer software for least cost poultry ration formulation. Proceedings of the 9th Annual Research Symposium. Faculty of Graduate Studies. University of Kelaniya. Pp. 134.
132
Atapattu, N.S.B.M.andWickramasinghe, K.P. (2008). Wet feeding reduces the feed conversion ratio of young broiler chicks. Proceedings of the 64th annual sessions of the Sri Lanka Association for the Advancement of Science. 1-6th December 2008. Pp. 246
133
Atapattu,N.S.B.M., Chandrasiri, W.C.J. andPremakumara, M.M. K. (2008). Effects of curry leave extract and Lovastatin on egg yolk cholesterol contents of chicken egg Proceedings of the 64th annual sessions of the Sri Lanka Association for the Advancement of Science. 1-6th December 2008. Pp. 247
134
Atapattu, N.S.B.M.,Piyadigama, B. andPiyaratne, D. (2008). Effect of complete replacement of fish meal from a sesame meal free diet on growth performance of broilers.Proceedings of the 64th annual sessions of the Sri Lanka Association for the Advancement of Science. 1-6th December 2008. Pp 248.
135
Belpagodagamage, U., Atapattu, N.S.B.M., andPerera, P.W.A. (2008). A comparison of the ammonia emission rates and some physio-chemical properties of the litters of broilers fed diets with or without fish meal. Proceedings of the 64th annual secessions of the Sri Lanka Association for the Advancement of Science. 1st -6th Dec 2008. Pp 249.
136
Atapattu, N.S.B.M. andChandrasiri, W.C.J. (2008). Effects of fish silage given with water on growth performance of broiler chicken. Proceedings of the 64th annual sessions of the Sri Lanka Association for the Advancement of Science. 1-6th December 2008. Pp 250.
137
Piyarathne, D., Atapattu, N.S.B.M.andWickramasinghe, K.P. (2008). Effects of two ideal amino acid profiles and lysine levels on growth performance of broiler chicken. Proceedings of the National Symposium, Faculty of Agriculture, University of Ruhuna. 23rd and 24the Oct 2008. Pp 53
138
Belpagodagamage, U.D., andAtapattu, N.S.B.M.(2008).Refused tea reduces the emission of ammonia from poultry litter. Proceedings of the National Symposium, Faculty of Agriculture, University of Ruhuna. 23rd and 24the Oct 2008.Pp 54.
139
Nayanarasi, H.A.D.,Atapattu, N.S.B.M. andSenarathne, D. (2008). A study on the behavior of broiler chicken during day time. Proceedings of the National Symposium, Faculty of Agriculture, University of Ruhuna. 23rd and 24the Oct 2008. Pp 60.
140
Nayanarasi, H.A.D. and Atapattu, N.S.B.M. (2008). Effect of vitamin B or C enriched water on gastric transit time of fear-stressed layer chicken. (2008). Proceedings of the National Symposium, Faculty of Agriculture, University of Ruhuna.23rd and 24the Oct 2008. Pp 61
141
Wickramasinghe, K. P. andAtapattu, N.S.B.M. (2008). Effects of wet feeding on growth performance and gastric transit time of broiler chicken.Proceedings of the National Symposium, Faculty of Agriculture, University of Ruhuna. 23rdand 24the Oct 2008. Pp 62.
142
Chandrasiri, W.C.J., Atapattu, N.S.B.M. and Premakumara, M.M.K. 2008. Effects of dietary rice bran on the cholesterol contents of chicken egg. Proceedings of the National Symposium, Faculty of Agriculture, University of Ruhuna. 23rd and 24the Oct 2008. Pp 117.
143
Sanjeewani, K.G.S., Atapattu, N.S.B.M.andSenaratna, D. (2008). Evaluation of Lawalu (Chrysophyllumroxburghii) fruit meal as a feed ingredient for broilers.Proceedings of the National Symposium, Faculty of Agriculture, University of Ruhuna. 23rdand 24the Oct 2008. Pp 118.
144
Atapattu, N.S.B.M.andAmarasinghe, S.P.K.(2008). Effect of a qualitative feed restriction strategy on growth and carcass parameters of broiler chicken.Proceedings of the fifth Academic Sessions of the University of Ruhuna. 5th March 2008. Pp 300.
145
Liyanaarachchi, N.,Wijetunga, S. andAtapattu, N.S.B.M. (2007). Communal attitude towards waste management practical- A case study in Faculty of Agriculture, University of Ruhuna. Proceedings of the 63rd Annual Secessions of the Sri Lanka Association for the Advancement of Science. 3rd-8th December 2007. Open University of Sri Lanka. Pp 32
146
Wickramasinghe, K.P. andAtapattu, N.S.B.M. (2007). Effect of vitamin C enriched water on growth performance and feed and water intake of broiler chicken. Proceedings of the fifth Academic Sessions of the University of Ruhuna. 5th March 2008. Pp 301
147
Mudalige, S.K.K., Rangoda, B.D.P. and Atapattu, N.S.B.M. (2007). Why do students opt not to enroll for Agriculture at Ruhuna. Proceedings of the fifth Academic Sessions of the University of Ruhuna. 5th March 2008. pp 302
148
Mudalige, S.K.K., Rangoda, B.D.P. andAtapattu, N.S.B.M. (2007). From Z score to semester great point average: An analysis. Proceedings of the fifth Academic Sessions of the University of Ruhuna. 5th March 2008. Pp 297
149
Atapattu, N.S.B.M. (2007). Effects of dietary phytase supplementation on water intake and digesta moisture contents of broiler chicken. Proceedings of the 63rd Annual Secessions of the Sri Lanka Association for the Advancement of Science. 3rd-8th December 2007. Open University of Sri Lanka. Pp 44.
150
Atapattu, N.S.B.M. andWickramasinghe, K.P. (2007). Effect of dietary rice bran and energy level on the digesta transit time of broiler chicken. Proceedings of the 63rd Annual Secessions of the Sri Lanka Association for the Advancement of Science. 3rd-8th December 2007. Open University of Sri Lanka. Pp 188
151
Amarasekara, R.P. andAtapattu, N.S.B.M. (2007). Effects of the immersion of poultry meat in citric acid solutions on the organoleptic properties. Proceedings of the 63rd Annual Secessions of the Sri Lanka Association for the Advancement of Science. 3rd-8th December 2007. Open University of Sri Lanka. Pp 189.
152
Atapattu, N.S.B.M. andLal, P.K.(2007). Effects of dietary rice bran levels on water intake pattern of broiler chicken. Proceedings of the first annual symposium of the faculty of Agriculture, University of Sabaragamuwa, Sri Lanka. Pp 60
153
Atapattu, N.S.B.M. and Hemantha, K.G.C.(2007). Effect of a qualitative feed restriction strategy on growth performance and carcass parameters of broiler chicken.Proceedings of the first annual symposium of the faculty of Agriculture, University of Sabaragamuwa, Sri Lanka. Pp 62.
154
Atapattu, N.S.B.M.andWickramasinghe, K.P. (2007). The effects of colour of lighting on broiler growth performance and feed and water intake pattern. Proceedings of the first annual symposium of the faculty of Agriculture, University of Sabaragamuwa, Sri Lanka. Pp 74
155
Atapattu, N.S.B.M. andBolpagodagamage, U.D. (2007). Light colour preference of broiler chicks during brooding period. Proceedings of the first annual symposium of the faculty of Agriculture, University of Sabaragamuwa, Sri Lanka. Pp 77.
156
Atapattu, N.S.B.M.,Belpagodagamage, U.D. andPiyadigama, B. (2007). A comparison of the ammonia emission rates of broiler and layer type poultry litter. Proceedings of the twelfth Forestry and Environmental Symposium. 30th Nov-1st Dec 2007, at Tangerine Beach Hotel, Kalutara, Sri Lanka. Pp 39
157
Atapattu, N.S.B.M.and Amarasekara, R.P. (2007). Proximate composition of broiler offal ensiled with citric acid. Proceedings of the twelfth Forestry and Environmental Symposium. 30th Nov-1st Dec 2007, at Tangerine Beach Hotel, Kalutara, Sri Lanka. Pp 42
158
Amarasekara, R.P., Atapattu, N.S.B.M. andSerarathne, D. (2007) Spent Broiler Litter as an Alternative to Inorganic Fertilizer for Spinach. Proceedings of the twelfth Forestry and Environmental Symposium. 30th Nov-1st Dec 2007, at Tangerine Beach Hotel, Kalutara, Sri Lanka. Pp 44
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Belpagodagamage,U.D.,Atapattu, N.S.B.M.andKumaraKithsiri, K.H.S. (2007). Present situation of the refused tea disposal and utilization: a case study in Matara District. Proceedings of the twelfth Forestry and Environmental Symposium. 30th Nov-1st Dec 2007, at Tangerine Beach Hotel, Kalutara, Sri Lanka. Pp 48
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Belpagodagamage, D.U. andAtapattu. N.S.B.M. (2007) Present situation of the poultry litter utilization and disposal practices: A case study. Proceedings of the twelfth Forestry and Environmental Symposium. 30th Nov-1st Dec 2007, at Tangerine Beach Hotel, Kalutara, Sri Lanka. Pp 48 - 49
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Sirisena, N.D.C.,Atapattu, N.S.B.M., SulthanBawa, Y., Serasinha, R.T. andMadage, S. (2006).Substitution of fish meal with fish silage in broiler finisher diets. Proceedings of the Seventh Annual Research Session of Agriculture Graduates. Pp 52-56.
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Atapattu, N.S.B.M. andSirisena, N.D.C. (2006). The effects of dietary physical form and phytase supplementation on feed retention time in broilers. Proceedings of the 62nd Annual Sessions of the Sri Lanka Association for the Advancement of Science. Pp 46.
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Atapattu, N.S.B.M. andGamage, V.L.G.(2006). Water intake of broiler chicken as affected by dietary microbial phytase. Proceedings of the Sri Lanka Association for the Advancement of Science. 10-15th December 2006 Colombo. Pp. 184.
164
Kaliyadasa, P.E. andAtapattu, N.S.B.M. (2006). Effect of broiler litter combined potting media on growth and yield performances of spinach (Basellaalba. L). Sri Lanka Association for the Advancement of Science. 10-15th December 2006 Colombo. Pp. 175
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Atapattu, N.S.B.M., Gajaweera, C.J., Chandana, G.A. andPaththinige, S.S. (2006). Effects of dietary rice bran level on the quality and quantity of broiler litter. Sri Lanka Association for the Advancement of Science. 10-15th December 2006 Colombo. Pp. 185
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Atapattu, N.S.B.M.,Senaratne, D. andSirisena, N.D.C. (2006). Suitability of some agro-industrial by-Products as litter material for Poultry: Physio-chemical Properties. Eleventh Proceedings of the eleventh International Forestry and Environment Symposium.22-23 December. Villa Ocean View, Wadduwa Sri Lanka. Pp 42.
167
Atapattu, N.S.B.M. (2006). Eutrophication and Poultry Industry: Issues, challenges and opportunities. Proceedings of the eleventh International Forestry and Environment Symposium. 22-23 December. Villa Ocean View, Wadduwa Sri Lanka. Pp 39.
168
Senaratna, D.,Atapattu, N.S.B.M., Lakmini, W.G.D., Palihakkara, I.R. andPiyadigama, B. (2006). Behaviour of cattle in an agro-forestry system.Proceedings of the eleventh International Forestry and Environment Symposium. 22-23 December. Villa Ocean View, Wadduwa Sri Lanka. Pp 11
169
Atapattu, N.S.B.M. (2006). Rice Bran: Potentials and Constraints as a Poultry Feed Ingredient. Proceedings of the 10thAnniversary International Symposium. Sabaragamuwa University Sri Lanka. Pp 59.
170
Mudalige, S.K.K., Atapattu, N.S.B.M., Rangoda, B.P. and Abeywickrama, L.M.(2006). Parental Attitude towards Some Issues Pertaining to University Education:Proceedings of the fourth academic sessions of University of Ruhuna, Sri Lanka. Pp 1
171
Abeywickrama, L.M.,Atapattu, N.S.B.M. andMudalige, S.K.K. (2006). De-escalating conflicts through sharing responsibilities: a case in Faculty of Agriculture of University of Ruhuna.Proceedings of the third academic sessions of the University of Ruhuna, Sri Lanka.Pp 31
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Atapattu, N.S.B.M. (2005). Ruminants and Greenhouse Gasses: Sustainable Feeding Strategies to Balancing the Issues. Tenth annual Forestry and Environmental Symposium. 2nd-3rd December 2005. Pp 42
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Senarathne, D., Serasinghe, R.T., Pathirana, K.K. and Atapattu, N.S.B.M. (2005). Effects of grazing on some physiochemical properties in integrated farming systems. Tenth annual Forestry and Environmental Symposium. 2nd-3rd December 2005. Pp. 66
174
Senarathne, D., Serasinghe, R.T., Pathirana, K.K. andAtapattu, N.S.B.M. (2005). Effects of buffalo grazing on plant species diversity in a coconut-pasture integrated system. Tenth annual Forestry and Environmental Symposium. 2nd-3rd December 2005. Pp 67.
175
Atapattu, N.S.B.M. (2005). A case study on free-range poultry rearing system in Matara District. Proceedings of the 61st Annual Sessions of the Sri Lanka Association for the Advancement of Science.Pp29 -30
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Atapattu, N.S.B.M., Serasinghe, R.T. andAbeynayaka, K.P. (1998). Proximate composition of some non conventional ruminant feeds. Proceedings of the 54th Annual Sessions of the Sri Lanka Association for the Advancement of Science. Pp 133.
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Atapattuu, N.S.B.M., Serasinghe, R.T. andSarathchandra, H. (1997). Effects of inoculation on initial growth and nodulation of tropical tree legume GliricidiasepiumProceedings of the 53rd Annual Sessions of the Sri Lanka Association for the Advancement of Science. Pp 150.
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Pathirana, K.K.,Serasinghe, R.T. and Atapattu, N.S.B.M. (1995). Feeding of Straw, Tree legume and concentrates for Increased Production with Cattle Grazing under Small Farm Conditions. Proceedings of the 51st Annual Sessions of the Sri Lanka Association for the Advancement of Science. Pp 147-149.