• Profile
  • Full name

    Prof. W.A.D. Nayananjalie

  • Designation

    Professor in Animal Science

  • Research Interests

  • Animal Nutrition
  • Higher Education

  • PhD (Animal Science) 

    Virginia Polytechnic Institute and State University, Blacksburg, Virginia, USA, December 20th, 2012                

    MSc (Biotechnology) 

    Faculty of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka, 15th March, 2004                  

    BSc (Agriculture) 

    Agriculture specialized Animal Science, University of Peradeniya, Peradeniya, Sri Lanka, 27th July 2001
  • Academic Distinctions/Fellowships

  • Netherland Fellowship (OKP) -  2019                                                                  

    Netherland Fellowship (NFP) -  2018                                                                             

    Graduate research assistantship, Department of Dairy Science, Virginia Tech, USA - 2009 – 2012

    ADB Scholarship -  2002 – 2003                                                                                                                                                                                             

     

                                                                                           

     
  • Teaching & Administrative Experience

  • Professor, Department of Animal and Food Sciences - 2019 Feb. onwards

    Head of the Department, Department of Animal and Food Sciences - Jan 2019 - Jan 2022

    Warden, Faculty of Agriculture - Mar 2016 – Mar 2018 & Jun 2013 – Jun 2014

    Senior Lecturer, Department of Animal and Food Sciences - Dec 2012 - Feb 2019                               

    Lecturer, Department of Agricultural Systems - Feb 2007 - Dec 2012                                 

     
  • Professional Experience

  • ‘Certificate Course on Staff Development, Staff Development Center, Wayamba University of Sri Lanka, Dec 2007-  Jul 2008    

        
  • Awards

  • Netherland Fellowship (OKP) - Aeres University of Applied Sciences, NL

    Netherland Fellowship (NFP) - Wageningen University, NL                                                                        

    Graduate research assistantship -  Virginia Tech, Blacksburg, Virginia, USA  

     ADB Scholarship -  Science and Technology Personal Development Project  and Asian Development Bank (ADB)

     
  • Research Grants Received/Administrated

  • 2019 - Development oriented research (DOR) under the accelerating higher education expansion and development operation (AHEAD) by the World bank “Development of commercially viable dense total mixed ration (TMR) briquettes for dairy cows using locally available ingredients”

    2018 - Rajarata University of Sri Lanka, “Designing a feed block forming machine and evaluation of feed blocks on intake, weight gain and milk yield of lactating cow”

    2015 & 2016 - Rajarata University of Sri Lanka, Association between Serum Total Antioxidant capacity & dietary pattern with serum creatinine levels & eGFR of patients with CKDu and normal people in Divisional Secretariat, Medawachchiya

    2013 - Rajarata University of Sri Lanka, “Dietary garlic supplementation on the performance of broilers"
  • Professional Expertise/Training

  • Training program on ‘Dairy Cattle Nutrition and Forage Conservation’ - Aeres University, The Netherlands

    Training program on ‘Milking to Potential’ - Wageningen University, The Netherlands

    Training on Virginia Tech-Specific Institutional Animal Care and Use Committee (IACUC) Training, USA
  • Memberships

  • American Dairy Sc. Association-American Society of Animal Sc. (ADSA-ASAS) - 2009 – 2012

    Animal Science Modellers’ Group, USA - 2009 – 2012

    National Science Foundation (NSF) - 2008 onwards

    Sri Lanka Association of Animal Production (SLAAP) - 2007 onwards
  • Publications In Symposium Proceedings
    1. Karunanayaka, R.H.W.M., W.A.D. Nayananjalie, A.M.J.B. Adikari, M.A.A.P. Kumari, W.V.V.R. Weerasingha, S.C. Somasiri. 2022. Effect of feeding total mixed ration (TMR) briquettes on the nutrient intake and digestibility in early lactating dairy cows in dry zone Sri Lanka. 3rd National Symposium on Agro-Technology and Rural Sciences – 2022 (NSATR, 2022), University of Colombo Institute for Agro-Technology and Rural Sciences, Sri Lanka, p 1.
    2. Thaliban, R. Al, N.K. Priyantha and W.A.D. Nayananjalie. 2021. Replacement of feed ingredient corn by wheat in broiler diets on performances in BAIRAHA PLC. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 15.
    3. Sandamali, M.A.C.N., N.M.S.M. Bandara and W.A.D. Nayananjalie. 2021. Effect of weather on performances of broiler parents reared in open houses. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 14.
    4. Kumarasinghe, K.A.M.G., D.A.L.D. Arachchi and W.A.D. Nayananjalie. 2021. Effect of body condition score on the reproductive performance of lactating dairy cows. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 13.
    5. Weerasinghe, R.G.A.C., K.A.C.H.A. Kothalawala and W.A.D. Nayananjalie. 2021. Trends in milk production and analysis of price behaviour of dairy sector in Sri Lanka. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 11.
    6. Jayakody, J.A.S.T., K.V.V.N. Jayalath and W.A.D. Nayananjalie. 2021. Trends, opportunities and constraints in the poultry sub-sector in the last 30 years period.  Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 16.
    7. Karunanayaka R.H.W.M., W.A.D. Nayananjalie, S.C. Somasiri, A.M.J.B. Adikari, W.V.V. R. Weerasingha and M.A.A.P. Kumari. 2021. Effect of Total Mixed Ration (TMR) Briquette on Milk Yield, Composition and Sensory Properties of Cow Milk. Proceedings of 14th International Conference of (KDUIRC2021), Faculty of Basic and Applied Sciences, General Sir John Kotelawala Defence University, Sri Lanka, p 8.
    8. Ukwatta, R.H., P.S. Jayasinghe, W.A.G.E. Wijelath, W.A.D. Nayananjalie and M.R. Perera. 2020. Development of seaweed (Gracilaria edulis) and oyster mushroom (Lleurotus ostreatus) incorporated vegetarian sausages, Technological Innovations for Fisheries and Aquaculture Development, NARA Scientific Session, p 41
    9. Karunanayaka, R.H.W.M., W.A.D. Nayananjalie, S.C. Somasiri, A.M.J.B. Adikari, W.V.V.R. Weerasinghe and M.A.A.P. Kumari. 2020. Comparison of nutritive value in fodder species and industrial by-products available in low country dry zone (DL1b- Anuradhapura District), Sri Lanka, 6th International Conference on Dry Zone Agriculture (ICDA, 2020), Faculty of Agriculture, University of Jaffna, p 64.
    10. Karunanayaka, R.H.W.M., W.A.D. Nayananjalie, S.C. Somasiri, A.M.J.B. Adikari, W.V.V.R. Weerasinghe and M.A.A.P. Kumari. 2020. Determination of Nutrient Composition in Locally Available Feed Ingredients in Anuradhapura, International Research Conference (IRCUWU2020), Badulla, Sri Lanka. P 21.
    11. Nawarathne, S.W.G.M., M.A.A.P. Kumari and W.A.D. Nayananjalie. 2020. Effect of stocking density at brooding stage on performance and stress response of broiler chickens. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 65.
    12. Ranasinghe, R.A.A.S., M.P. Edirisinghe and W.A.D. Nayananjalie. 2020. Developing a low-fat drinking yoghurt by incorporating green tea (Camellia sinensis) extract as a functional ingredient. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka.  p 66.
    13. Madhushani, M.L.D., E.D.M. Epasinghe and W.A.D. Nayananjalie. 2020. Effect of different stocking densities and carbon sources on water quality and production performances of Tilapia. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka.  p 73.
    14. Mihiraj, A.S.S., R.W.M.K.D.N. Amunugama and W.A.D. Nayananjalie. 2020. Effects of total mixed ration on growth performance of buffalo calves at nldb farm at Melsiripura: A case study. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 74.
    15. Nisansala, D.L.D., E.D.M. Epasinghe and W.A.D. Nayananjalie. 2020. The effect of different carbon sources on water quality and growth performances of male guppy (Poecilia reticulata) juveniles. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka.  p 77.
    16. Dissanayake, D.M.T.U., T. Liyanage, W.A.G.E. Wijelath and W.A.D. Nayananjalie. 2020. Physical, chemical and morphological characteristics of areca nut (Areca catechu L.) seeds In Sri Lanka. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka.  p 84.
    17. Ukwatta, R.H., P.S. Jayasinghe, W.A.G.E. Wijelath and W.A.D. Nayananjalie. 2020.  Development of seaweed (Gracilaria edulis) and oyster mushroom (Pleurotus ostreatus) incorporated vegetarian sausage substitute. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 90.
    18. Pathirathne, M.T.S., W.A.G.E. Wijelath, A.B.G. Silva and W.A.D. Nayananjalie. 2020.  Determination of protein and crude fibre in cooked foods consumed by toddlers aged 1-2 years in Alawwa, Sri Lanka. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka.  p 105.
    19. Jagathsinghe, H. N. H., M. A. A. P. Kumari, W. P. R. Chandrarathna, and W. A. D. Nayananjalie. 2019. Inclusion of water hyacinth (Eichhornia crassipes) as a prebiotic on yeast (Saccharomyces cerevisiae) based feed for guppy (Poecilia reticulata) juveniles. Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 45.
    20. Gunasekara, P. T., K. H. I. Gimhani, S. P. Rebeira, and W. A. D. Nayananjalie. 2019. Development of rice-based milk alternative incorporated with Annona and Moringa, Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 51.
    21. Sumanasekara, T. D. L. M., L. Ang, M. A. A. P. Kumari, and W. A. D. Nayananjalie. 2019. Effect of protease supplementation on growth performances, carcass and meat quality characteristics of broiler chickens fed with low protein diets, Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 49.
    22. Karunanayaka, R. H. W. M., A. M. J. B. Adikari, W. A. D. Nayananjalie, and M. A. A. P. Kumari. 2019. Effect of dietary probiotic, prebiotic and synbiotic supplementation on performance, carcass traits and blood serum parameters in broiler chicken, Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 46.
    23. Kaushalya, U. P., P. D. Kandage, and W. A. D. Nayananjalie. 2019. Design, development and evaluation of an animal feed block making machine, Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 8.
    24. Samarakoon, S. M. G. L. K., L. Ang, and W. A. D. Nayananjalie. 2018. Dietary supplementation of secondary plant compounds and zinc bacitracin on growth performance and lipid profile of broilers. In: Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 50.
    25. Ramanayake, N. S., M. A. A. P. Kumari, and W. A. D. Nayananjalie. 2018. Effect of photoperiod on growth performances of guppy fish In: Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 45.
    26. Munasinghe, D. G. Y., M. A. A. P. Kumari, N. Lalantha, and W. A. D. Nayananjalie. 2018. Evaluation of vacuum leakage condition of meat products produced at Keells Food PLC - Ekala, Ja-Ela. In: Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 42.
    27. Srimali, S. V. H., W. V. V. R. Weerasinghe, and W. A. D. Nayananjalie. 2018. Development of yoghurt drink by using citrus fibre as a stabilizer. In: Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 53.
    28. Jayasiri, H. P. B. S. and W. A. D. Nayananjalie. 2018. Effect of quantitative early feed restriction on the growth performance and fat deposition in broilers. In: Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 44.
    29. Hapudeniya, H. C. S., W. A. D. Nayananjalie, and U. L. P. Mangalika. (2018). Influence of total mixed ration on productivity and composition of milk of lactating buffaloes under the dry zone farm conditions. In: Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 47.
    30. Nandasena, W. G. S. B., A. M. J. B. Adikari, and W. A. D. Nayananjalie. 2017. Effects of Feeding Frequency on Fat Deposition and Growth Performance in Broilers. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 22.
    31. Abeysinghe, A. M. D. G. K., W. A. D. Nayananjalie, N. W. I. A. Jayawardana, S. Senadheera, and C. R. Gunawardhane. 2017. Is Rice a Predisposing Factor for Chronic Kidney Disease of Unknown Etilogy in Medawachchiya, Sri Lanka?: A Comparative Study on Some Heavy Metals, Vitamins and Antioxidents. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 26.
    32. Madhubhashini, R. M. S., U. L. P. Mangalika, W. A. D. Nayananjalie, W. A. P. P. Weeragalle, and M. V. I. Kumari. 2017. Evaluation of Nutritional, Physio-Chemical and Sensory Properties of Sapodilla Pulp Incorporated Set Yoghurt. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 23.
    33. Karunaarachchi, K. C. M., M. A. A. P. Kumari, R. H. Pothuwila, and W. A. D. Nayananjalie. 2017. Effect of Biofloc on Growth of Genetically Improved Farmed Tilapia Juveniles in Indoor Condition. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 18.
    34. Bandara, A. G. K. M. P. M. N., W. A. D. Nayananjalie, and A. M. J. B. Adikari. 2017. Effects of Dietary Inclusion of Dehydrated Swill for the Growth Performances of Male Layers. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 19.
    35. Shanaziyaa, A. S. F., U. L. P. Mangalikab, and W. A. D. Nayananjalie. 2016. Manufacturing of Paneer with Different Coagulants using Cow and Buffalo Milk In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 35.
    36. Mohamed, M. S. A., A. A. S. S. M. Amarasinghe, and W. A. D. Nayananjalie. 2016. On-farm evaluation of Production Performances of Lactating Cross Bred Jersey Cows Provided with Effective Microorganisms. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 31.
    37. Jayathilaka, B. R., W. A. D. Nayananjalie, A. M. J. B. Adikari, and B. W. N. J. Samaraweera. 2016. Influence of Effective Microorganisms on Growth Performances of Broilers under Dry Zone Environmental Conditions in Sri Lanka. Proceedings of Wayamba International Conference. 197.
    38. Herath, H. M. W. S. K., W. A. H. Champa, G. W. A. S. Lakmini, and W. A. D. Nayananjalie. 2016a. Effect of Cashew (Anacardium occidentale) and Ahala (Cassia fistula) Fresh Leaf Powders on Induction of Ripening in Banana Variety “Embul”. Proceedings of Wayamba International Conference. 163.
    39. Herath, H. M. W. S. K., W. A. H. Champa, G. W. A. S. Lakmini, and W. A. D. Nayananjalie. 2016b. Development of Organic Method For Induction of Ripening Banana Variety “Embul". In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 45.
    40. Abeyrathne, E. A. V. D., G. G. C. Premalal, and W. A. D. Nayananjalie. 2016. Development and Evaluation of a Field Test Kit for Determination of Silage Fermentation Quality. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 38.
    41. Pushpakumara, D. M. S., N. Priyankarage, W. A. D. Nayananjalie, D. L. Ranathunga, and D. M. D. P. Dissanayake. 2016. Palm Kernal Cake as a Potential Feed Ingredient in Broiler Rations. In: World's Poultry Science. p 5-6.
    42. Dissanayake, I. S. S., P. M. Withanage, D. M. Somarathne, R. H. G. R. Wathsala, and W. A. D. Nayananjalie. 2015. Effect of Pond Fertilization on Survival Rate of Catla Post Larvae In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanaka. p 47.
    43. Gamage, G. G. A. P., W. A. D. Nayananjalie, N. W. I. A. Jayawardena, P. H. P. Prasanna, A. M. J. B. Adikari, R. H. G. R. Wathsala, and B.M.K.S.Tilakaratne. 2015. Development of Probiotic Drinking Yoghurt from Goat Milk. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanaka. p 43.
    44. Gunathissa, R. D. N. M., G. G. C. Premalal, and W. A. D. Nayananjalie. 2015. Development of Vegetative Propagation Technique for Hybrid Napier Variety CO-3 In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanaka. p 39.
    45. Madhushanka, M. P. P. P., P. H. P. Prasanna, A. M. J. B. Adikari, W. A. D. Nayananjalie, N. W. I. A. Jayawardena, and R. H. G. R. Wathsala. 2015. Development of Probiotic Goat Cheese Using Selected Probiotic Bacteria. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 29.
    46. Pushpakumara, D. M. S., N. Priyankarage, and W. A. D. Nayananjalie. 2015. Suitability of Palm Kernel Cake as a Feed Ingredient in Broiler Rations. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 27.
    47. Rathnayake, R. M. C. S., U. L. P. Mangalika, A. M. J. B. Adikari, and W. A. D. Nayananjalie. 2015. Compositional and Keeping Quality of Cow Milk on Ethanol Stability. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanaka. p 45.
    48. Wijerathne, W. M. C. G., M. W. C. D. Palliyeguru, and W. A. D. Nayananjalie. 2015. Effect of Improved Local Fish Meal on Growth Performances of Broiler Chickens. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 49.
    49. Dilrukshi, G. H. C., P. M. Withanage, K. M. D. Somarathna, R. H. G. R. Wathsala, and W. A. D. Nayananjalie. 2015. Influence of Feeding Strategy on Survival Rate of Catla Post Larvae. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 42.
    50. Weerakkody, C. S., R. H. G. R. Wathsala, W. A. D. Nayananjalie, K. D. R. Jayasena, and B. W. N. J. Samaraweera. 2014. Nutritional Quality of Fresh Forage and Silage From Selected Corn (Zea maize) Varieties In: Proceedings of Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 58.
    51. Senevirathne, P. G. N. D., U. L. P. Mangalika, A. M. J. B. Adikari, W. A. D. Nayananjalie, and D. M. M. Sirisena. 2014. Effects of Breed, Age, Nutritional Status, Lactation Number and Stage on Freezing Point Depression of Cow Milk. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 50.
    52. Samanthi, K. A. M., W. A. D. Nayananjalie, A. M. J. B. Adikari, and R. Liyanage. 2014. Dietary Garlic (Allium sativum l.) Supplementation on Performance, Meat Quality and Lipid Profile in Broilers In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 49.
    53. Kulathunga, K. M. W. H., K. Y. H. D. Shantha, and W. A. D. Nayananjalie. 2014. Preparation of Cattle Feed Blocks Using Agricultural Wastes. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 60.
    54. Jayasinghe, J. D. D. P., N. Priyankarage, A. P. D. G. Pathirana, W. A. D. Nayananjalie, and S. S. P. Silva. 2014. Semi Fat Soybean Meal as a Substitute for Soybean Meal in Broiler Rations In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 65.
    55. Chandana, R. M. S. K., A. P. D. G. Pathirana, J. D. D. P. Jayasinghe, N. Priyankarage, S. S. P. Silva, and W. A. D. Nayananjalie. 2014. Full Fat Soybean Meal as a Substitute for Soybean Meal in Broiler Rations. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 56.
    56. Bandara, W. M. D. K., K. H. Sarananda, N. W. I. A. Jayawardana, and W. A. D. Nayananjalie. 2014. Finger Millet (Eleusine coracana) Based Malted Milk In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 55.
    57. Bandara, P. G. G., G. G. C. Premalal, and W. A. D. Nayananjalie. 2014. Nutritive Value And Silage Quality In Fodder Sorghum (Sorghum bicolor l. moench.), Hybrid Napier (Pennisetum americanum × Pennisetum purpureum), and Maize (Zea mays) Grown In Mid Country, Sri Lanka. In: Proceedings of the Annual Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 59.
    58. Chandana, R. M. S. K., A. P. D. G. Pathirana, J. D. D. P. Jayasinghe, N. Priyankarage, W. A. D. Nayananjalie, and S. S. P. Silva. 2014. Effect of Replacing Imported Soya Bean Meal with Extruded Full Fat Soya in Diet on the Performance of Broilers. In: World’s Poultry Science. p 13-15.
    59. Jayasinghe, J. D. D. P., A. P. D. G. Pathirana, R. M. S. K. Chandana, N. Priyankarage, W. A. D. Nayananjalie, and S. S. P. Silva. 2014. Extracted and Expelled Local Soya Can Replace Imported Non Dehulled, Solvent Extracted Soya Bean Meal in Broiler Diets. In: World’s Poultry Science p 6-8.
    60. Attanayake, P. M. G. S. K., A. P. D. G. Pathirana, N. Priyankarage, S. S. P. Silva, and W. A. D. Nayananjalie. 2013. Effect of Replacing Soya Bean Meal with Cottonseed Meal in Broiler Rations. In: Proceedings of the Undergraduate Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 21.
    61. Bandara, C. M. S. M., R. H. Pothuvila, R. H. G. R. Wathsala, and W. A. D. Nayananjalie. 2013. Use of synthetic hormone LHRH analogues and Ovaprim to induce breeding of Catla catla and Labeo rohita. In: Proceedings of the Undergraduate Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 31.
    62. Pathmasiri, P. G. R. P., G. C. C. Premalal, and W. A. D. Nayananjalie. 2013. Oxalate and Nitrate Accumulation in Hybrid Napier var. CO-3 (Pennisetum purpeurium x P. americanum) and Wild Guinea Grass (Panicum maximum) Grown in Mid Country Sri Lanka. In: Proceedings of the Undergraduate Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 26.
    63. Chathuranga, K. R. S., E. D. M. Epasinghe, H. M. P. Kithsiri, W. A. D. Nayananjalie, and R. H. G. R. Wathsala. 2013. Feed type and feeding frequency on the cannibalism of Pangasius sutchi. In: Proceedings of the Undergraduate Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 24.
    64. Nayananjalie, W. A. D., T. R. Wiles, D. E. Gerrard, M. A. McCann, and M. D. Hanigan, 2013. Adipose Tissue Preference for Acetate and Glucose by Finishing Steers Energy and protein metabolism and nutrition in Sustainable Animal Production. p 387. Wageningen Academic Publishers, Sacramento, California, USA.
    65. Nayananjalie, W. A. D., T. R. Wiles, D. E. Gerrard, M. A. McCann, and M. D. Hanigan. 2012. Adipose Tissue Preference for Acetate in Finishing Steers. Journal of Animal Science. 90 (Suppl. 3): 366.
    66. Aguilar, M., M. E. V. Amburgh, W. A. D. Nayananjalie, and M. D. Hanigan. 2011. Effect of Cow Variation on the Efficiency of Nitrogen Recycling to the Rumen in Dairy Cattle, Journal of Dairy Science, Journal of Dairy Science. 94 (Suppl. 1): 122.
    67. Lyman, V. S., M. L. Bell, W. A. D. Nayananjalie, E. M. England, J. A. R. R. N. Appuhamy, and M. D. Hanigan. 2011. Essential Amino Acids Significantly Contribute to the Energy Status in Short-term MAC-T Cell Cultures. Journal of Dairy Science. 94 (Suppl. 1): 75.
    68. Nayananjalie, W. A. D., M. Bell, J. M. Scheffler, H. Jiang, M. A. McCann, D. E. Gerrard, J. Escobar, and M. D. Hanigan. 2011a. Effect of Early Grain Feeding on ADG and Signaling Proteins for Protein Synthesis in the Muscle Tissues of Beef Animals Journal of Animal Science. 89 (Suppl. 1): 113.
    69. Nayananjalie, W. A. D., T. R. Wiles, S. Arriola, M. Aguliar, J. Escobar, M. A. McCann, D. E. Gerrard, M. L. McGilliard, and M. D. Hanigan. 2011b. Acetate Clearance Rates and Postabsorptive Capacity to Utilize Acetate by Beef Steers. Journal of Animal Science. 89(Suppl. 1): 114.
    70. Arriola, S., W. A. D. Nayananjalie, J. A. D. A. Appuhamy, and M. D. Hanigan. 2010. m-TOR Independent Model of Protein Synthesis Regulation by Essential Amino Acids in Mammary Epithelial Cells Energy and Protein Metabolism and Nutrition. p 247-248. Wageningen Academic Publishers, Parma, Italy.
    71. Nayananjalie, W. A. D., K. L. Pike, T. R. Wiles, M. A. McCann, D. E. Gerrard, M. L. McGilliard, and M. D. Hanigan. 2010a. Mathematical Representation of Blood Acetate Clearance in Beef Calves. Canadian Journal of  Animal Science. 90: 597.
    72. Nayananjalie, W. A. D., A. G. Rius, D. Kirovski, J. A. D. R. N. Appuhamy, J. Escobar, and M. D. Hanigan. 2010b. In vivo Effects of Insulin and Dietary Protein Level on Signaling Proteins for Protein Synthesis in the Mammary Glands of Lactating Dairy Cows. Journal of Dairy Science. 93(Suppl. 1): 682.
    73. Pike, K., W. A. D. Nayananjalie, T. R. Wiles, M. A. McCann, D. E. Gerrard, and M. D. Hanigan. 2010. Acetate Utilization in Young Crossbred Calves is Age Dependent. Journal of Animal Science. 88 (Suppl. 2): 701.
    74. Colonne, A., K. G. P. Prasanna, W. A. D. Nayananjalie, and S. S. P. Silva. 2009. Effect of Lipase and Protease Enzymes on Digestibility of Fat and Protein of Rice Based Broiler Feeds. In: Proceedings of the Second National Symposium, Faculty of Agriculture, University of Ruhuna, Sri Lanka. p 44.
    75. Jayasena, K. D. R., A. A. S. S. M. Amarasingha, and W. A. D. Nayananjalie. 2009. Use of Citric Acid and Selected Antibiotics on the Performances of Broiler Chicks at Brooding Stage. In: Proceedings of the Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 29.
    76. Kumara, M. W. N. P., N. W. I. A. Jayawardana, W. A. D. Nayananjalie, and K. H. Sarananda. 2009. Sensory Evaluation of Natural Mango Flavored Drinking Yoghurt. In: Proceedings of the Vavuniya Campus Annual Research Session, Vavnia Campus of the University of Jaffna, Sri Lanka. p 25.
    77. Rathnayake, R. M. L. W., K. M. P. Kithsiri, and W. A. D. Nayananjalie. 2009. Evaluation of Growth and Breeding Performances of Puntius Reval (Red fin Barb) with Different Feeds under the Aquarium Condition. In: Proceedings of the Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 27.
    78. Rathnayake, R. M. N. M., K. Jayarathne, and W. A. D. Nayananjalie. 2009. Use of Potassium Sorbate for Extending the Shelf Life of Strawberry Flavoured Drinking Yoghurt. In: Proceedings of the Research Symposium, Faculty of Agriculture, Rajarata University of Sri Lanka. p 31.
    79. Colonne, A., N. R. S. Nandajeewa, W. A. D. Nayananjalie, and S. S. P. Silva. 2009. Effect of Supplementation of Exogenous Enzyme Mixture Containing Phytase on Phosphorus and Calcium Retention of Rice Bran Based Broiler Feeds The Eighth Annual Research Session. p 10. Faculty of Commerce and Management, Eastern University, Sri Lanka.
    80. Abeygunasekara, T. R., W. A. D. Nayananjalie, and T. V. Sundarabarathy. 2008. Socio-economic Status of Fishing Communities at Hurulu Wewa, Kala Wewa and Mahakanadarawa Wewa in Anuradhapura Districts. In: Abstracts of Final Year Research. p 26-28.
    81. Adhikai, A. M. A. N., T. V. Sundarabarathy, W. A. D. Nayananjalie, and H. M. U. K. P. B. Herath. 2008. Use of Aquatic Plants (Ipomea aquatica and Hydrilla vercillata) in Artificial Feed of Indian Carp (Catla catla) Fry. In: Abstracts of Final Year Research. p 47-48.
    82. Dias, L. P., N. Lalantha, and W. A. D. Nayananjalie. 2008. Determination of Suitability of Local Raw Swordfish (Xiphias gldius) and Imported Canned Fish for the Preparation of Value Added Fish Products. In: Abstracts of Final Year Research. p 49-50.
    83. Kumara, M. W. N. P., W. A. D. Nayananjalie, and K. H. Sarananda. 2008. The Development of Natural Mango Flavoured Drinking Yoghurt. In: Abstracts of Final Year Research. p 37-38.
    84. Nandajeewa, N. R. S., S. S. P. Silva, and W. A. D. Nayananjalie. 2008. Effect of Supplementation of Exogenous Enzyme Containing Phytase on Phosphorus and Calcium Retention of Broilers Fed with Rice Bran Based Diets. In: Abstracts of Final Year Research. p 63-64.
    85. Perera, A. A. D. S., S. S. P. Silva, and W. A. D. Nayananjalie. 2008. Effect of Supplemental Enzyme Containing Xylanase on the Apparent Metabolisable  Energy (AME) Value of Broilers Fed with Rice Bran Based Diets. In: Abstracts of Final Year Research. p 65-66.
    86. Prasanna, K. G. P., S. S. P. Silva, and W. A. D. Nayananjalie. 2008. Effect of Supplemental Enzyme MIxture Containing Lipase and Protease on Digestibility of Fat and Protein of Broilers Fed with Rice Bran Based Diets In: Abstracts of Final Year Research. p 67-68.
    87. Nayananjalie, W. A. D., and L. P. Silva. 2001. Evaluation of Growth and Climatic Influence on Egg Production of Guinea Fowl (Numida meleagris) under Mid Country Farm Conditions. In: Proceedings of Animal Science Student Research Department of Animal Science, University of Peradeniya, Sri Lanka. p 38-39.
  • Courses And Training Attended

  • Training program on ‘Dairy Cattle Nutrition and Forage Conservation’ - Aeres University, The Netherlands

    Training program on ‘Milking to Potential’ -Wageningen University, The Netherlands

    Training on Virginia Tech-Specific Institutional Animal Care and Use Committee (IACUC) Training, USA

    Netherland Fellowship (OKP) 25th  Mar – 17th Apr 2019
  • Conferences Attend
    1. International Livestock Conference and 23rd Annual Convention of ISAPM held from 28th-3st, January, 2016, Hyderabad, India.
    2. XXIII International Grassland Congress - IGC 2015, held from 20th - 24th of November 2015, Delhi NCR, India
    3. Workshop on “Innovative Analytical Solutions for Scientific Research” held on 02nd August 2012 at Virginia Tech Inn, Blacksburg, USA – Organized by Waters Corporation, USA
    4. American Dairy Science Association-American Society of Animal Science (ADSA-ASAS) Joint annual meeting held on 16-19th July 2012 – Phoenix, Arizona, USA
    5. Meeting of the Animal Science Modellers’ group held on 14th July 2012- Phoenix, Arizona, USA
    6. American Dairy Science Association-American Society of Animal Science (ADSA-ASAS) Joint annual meeting held on 10-14th July 2011 – New Orleans, Louisiana, USA
    7. Meeting of the Animal Science Modellers’ group held on 9th July 2011- New Orleans, Louisiana, USA
    8. American Dairy Science Association-American Society of Animal Science (ADSA-ASAS) Joint annual meeting held on 11-15th July 2010 – Denver, Colorado, USA
    9. Meeting of the Animal Science Modellers’ group held on 10th July 2010 - Denver, Colorado, USA
    10. Workshop on “Technical writing” held on 25th March 2010 at VBI auditorium, Virginia Tech, Blacksburg, USA – Organized by Fralin Life Science Institute, Virginia Tech, USA
  • Community Activities

  • Farmer training/awareness workshop

    • Farmer training workshop, Under AHEAD project - 8th June 2022
    • Farmer training workshop, Under AHEAD project -  1st November 2021
    • Farmer training workshop, Under UNESCO program -  9th October 2019
    • Farmer training workshop, Under UNESCO program -  20th August 2019
    • Farmer training workshop, Thambuththegama -  7th August 2018
    • Farmer training workshop, Thambuththegama - 29th May 2017
    • Farmer training workshop, Thambuththegama - 16th June 2015
    • Farmer training workshop, Thambuththegama - 19th December 2013
    • Farmer training workshop, Thambuththegama - 31st October 2013
    • Farmer training workshop, Thambuththegama - 25th October 2013
    • Sri Lanka Broadcasting Cooperation, “Rajarata Sewaya” – 22nd June 2017

    Teachers and school children training workshop

    • GCE A/L (Agriculture) school children training workshop, North Central Province – 3rd – 5th December 2018
    • Teacher training workshop, Galenbindunuwewa – 27th – 28th September 2018
    • GCE O/L and A/L (Agriculture) school children training workshop, Sewanapitiya – 16th September 2017
    • Training workshop for Agriculture Diploma students, School of Agriculture, Anuradhapura –6th – 8th September 2017
    • GCE A/L (Agriculture) school children training workshop, North Central Province – 11th July 2017
    • GCE A/L (Agriculture) school children training workshop, North Central Province – 4th July 2017
    • GCE A/L (Agriculture) school children training workshop, North Central Province – 27th June 2017
    • GCE A/L (Agriculture) school children training workshop, Padaviya – 19th June 2017
    • GCE A/L (Bio-system and Agriculture) school children training workshop, Madukanda Vidyalaya – November 2016
    • GCE A/L (Agriculture) school children training workshop, North Central Province – 20th and 22nd November 2016
    • GCE A/L (Agriculture) school children training workshop, North Central Province – 18th and 20th October 2016
    • GCE A/L (Agriculture) school children training workshop, North Central Province – 11th and 13th October 2016
    • GCE A/L (Agriculture) school children training workshop, North Central Province – 4th and 6th October 2016
    • Teacher training workshop, North Central Province – 2013
  • Papers Presented at Seminars/Workshops,Etc
    1. W. A. D. Nayananjalie. 2016. Feeding approaches to cut down the cost of production of dairy cattle and broiler chickens, International Livestock Conference and 23rd Annual Convention of ISAPM held from 28-31, January, 2016 at Hyderabad, India.
    2. W. A. D. Nayananjalie. 2012. Roles of leptin in lactating dairy cows. Department of Dairy Science, Virginia Polytechnic Institute and State University, Virginia, USA. March 27th 2012.
    3. W. A. D. Nayananjalie. 2011. AMPK: a Key Cellular Energy Sensor in Ruminants., Department of Dairy Science, Virginia Polytechnic Institute and State University, Virginia, USA. November 10th 2011.
    4. W. A. D. Nayananjalie. 2010. Acetate and Glucose Utilization by Adipose Tissues in Ruminants. Department of Dairy Science, Virginia Polytechnic Institute and State University, Virginia, USA. November 18th 2010
    5. W. A. D. Nayananjalie. 2010. Acetate Utilization in Young Crossbred Calves is Age-dependent, Animal Science Modellers’ Group, Denver, CO, USA. July 10th 2010
  • Research Monographs

  • Total Mixed Ration Briquettes Produced for Lactating Dairy Cows

    ISBN: 978-624-5720-28-6

    Recognized Publisher: Sandesha Publishers (Pvt.) Ltd., No 38, Yatawathura, Padukka
  • Research Grants Attached

  • Project: Development of commercially viable dense total mixed ration (TMR) briquettes for dairy cows using locally available ingredients 

                Funding source: World Bank (AHEAD) (2019)

                Fund: LKR. 40 million

                Role: Principal investigator

                Grant no.: DOR 39

     

    Project: Effect of dietary probiotic and prebiotic supplementation on performance, carcass traits and blood serum parameters in broiler chickens

                Funding source: UGC Research grant (2018)

                Fund: LKR. 960,000

                Role: Co-investigator

     

    Project: Designing a feed block forming machine and evaluation of feed blocks on intake, weight gain and milk yield of lactating cows

                Funding source: UGC Research grant (2018)

                Fund: LKR. 400,000

                Role: Principal investigator

                Grant No.: RJT/R&PC/2018/Agri/R/02

     

    Project: Effects of Feeding Frequency on Growth Performance, Carcass Traits, Blood Serum Parameters and Abdominal Fatty Acid Composition in Broilers

                Funding source: UGC Research grant (2016)

                Fund: LKR. 757,500

                Role: Co-investigator

     

    Project: Association between Serum Total Antioxidant capacity & dietary pattern with serum creatinine levels & eGFR of patients with CKDu and normal people in Divisional Secretariat, Medawachchiya

               Funding source: UGC Research grant (2015, 2016)

                Fund: LKR. 895,000

                Role: Principal investigator

     

    Project: Development of goat milk-based products

                Funding source: UGC Research grant (2014)

                Fund: LKR. 300,000

                Role: Co-investigator

     

    Project: Dietary garlic supplementation on the performance of broilers

                 Funding source: UGC Research grant (2013)

                Fund: LKR. 35,000

                Role: Principal investigator
  • Contact
  • Official Address

    Department of Animal and Food Science
    Faculty of Agriculture
    Rajarata University of Sri Lanka
    Puliyankulama,
    Sri Lanka.

    Phone

    +94 714458671

    Fax

    +94 25 2221614

    Email

    deepthin@agri.rjt.ac.lk

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