Dr. Tugay  Ayasan

Dr. Tugay Ayasan

Research Scientist
East Mediterranean Agricultural Research Institute, Turkey


Highest Degree
Ph.D. in Broiler Nutrition, Threonine from Cukurova University, Turkey

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Biography

Dr.Tugay Ayasan is currently Head of the Division of Feeds and Animal Nutritions East Mediterraneam Agricultural Research Institute, Adana-Turkey. He received PhD degree from Cukurova University Agricultural Faculty Department of Animal Science, Turkey in 2004. He formally worked for 5 years (1995-2000) as a Research Assistant at same university. Dr.Ayasan major subject is Poultary Nutritions espacially japnese quail nutritions. Dr. Ayasan is the author of more than 85 scientific articles and the reiewers of more than 340 scientific articles.He has served as reviewer for Asian Australian Journal of Animal Sciences since 2011 having 42 completed assignments.He is serving as editorial board member and reviewer of different journals. He also participated and attended 6 national congress/symposium with presentation, 9 congress/symposium without presentation. He received number of awards and honors.

Area of Interest:

Animal and Veterinary Sciences
100%
Animal Nutriton
62%
Quail
90%
Broiler Nutrition
75%
Laying Hen
55%

Selected Publications

  1. Ucak, A.B., T. Ayasan and A.N. Cil, 2016. Effect of planting date on yield, plant water stress ındex and water usage rate of sunflower (helianthus annuus) genotypes in semi-arid cukurova of Turkey. J. Agric. Faculty Gaziosmanpasa Univ., 33: 157-165.
  2. Konca, Y., B.S. Buyukkilic, T. Ayasan, M. Kaliber and K.A. Bozkurt, 2016. The effects of freezing and supplementation of molasses and inoculants on chemical and nutritional composition of sunflower silage. Asian-Aust. J. Anim. Sci., 29: 965-970.
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  3. Inci, H., S. Celik and T. Ayasan, 2016. Examination of some carcass parts measurements affecting on carcass weight via path analysis on Japanese quail. KSU J. Nat. Sci., 19: 227-235.
  4. Inci, H., B. Sogut, T. Ayasan, S. Celik and T. Sengul, 2016. Effect of different feeding methods on live weight and live weight gain in Turkeys. Igdir Univ. J. Inst. Sci. Technol., 6: 151-156.
  5. Inci, H., B. Sogut, O. Gokdogan, T. Ayasan and T. Sengul, 2016. Determining the energy-use efficiency and economic analysis of broiler chickens raised under organic conditions. Indian J. Anim. Sci., 86: 1323-1327.
  6. Gokdogan, O., T. Ayasan, H. Inci, B. Sogut and T. Sengul, 2016. Effect of different housing systems (cages versus floor) on energy efficiency analysis of meat type Japanese quails. Indian J. Anim. Sci., 86: 1051-1054.
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  7. Ayasan, T., H. Hizli, A. Asarkaya and M.A. Coskun, 2016. Growth performance and survival rate traits in holstein calves. Turk. J. Agric. Nat. Sci., 3: 223-228.
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  8. Ayasan, T., 2016. Using of babassu and its by-products in animal nutrition. Turk. J. Agric. Food Sci. Technol., 4: 318-320.
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  9. Ayasan, T., 2016. Use of copra meal in poultry and ruminant nutrition. Turk. J. Agricult. Food Sci. Technol., 4: 61-65.
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  10. Ayasan, T., 2016. Efficacy of probiotic supplementation on growth performance and carcass traits in Japanese quails. Indian J. Anim. Sci., 86: 795-798.
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  11. Ayasan, T. and M. Baylan, 2016. Use of mulberry leaf in animal nutrition. Turk. J. Agric. Food Sci. Technol., 4: 504-507.
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  12. Kucukonder, H., T. Ayasan and H. Hizli, 2015. Classification of holstein dairy cattles in terms of parameters some milk component belongs by using the fuzzy cluster analysis. Kafkas Univ. Vet. Fac J., 23: 601-606.
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  13. Ayasan, T., 2015. Use of moringa oleifera in poultry and ruminant nutrition. Turk. J. Agric.-Food Sci. Technol., 3: 425-429.
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  14. Ayasan, T., 2015. Nutrition of recipient cows. Turkish J. Agric. Food Sci. Technol., 3: 22-27.
  15. Ayasan, T., 2014. Use of camelina (Camelina sativa (L.) Crantz) in poultry nutrition. KSU J. Nat. Sci., 17: 10-13.
  16. Ayasan, T. and F. Okan, 2014. The effect of choice feeding based on threonine on performance and carcass parameters of male broiler chicks. Turk. J. Agric.-Food Sci. Technol., 2: 190-196.
  17. Ayasan, T. and F. Okan, 2014. The efect of choice feding based on threonine on performance characteristics and carcas parameters of female broiler chicks. KSU J. Nat. Sci., 17: 1-9.
  18. Ayasan, T., 2013. Effects of dietary inclusion of protexin (probiotic) on hatchability of Japanese quails. Indian J. Anim. Sci., 83: 78-81.
  19. Ayasan, T., 2013. Effects of dietary Yucca schidigera on hatchability of Japanese quails. Indian J. Anim. Sci., 83: 641-644.
  20. Yaman, S., E. Unay, V. Karakas, M. Yildirim and S. Askar et al., 2012. Effect of forage dry matter content and bale size on fermentation characteristics and aerobic stability of alfalfa ensiled in round bales. Proceedings of the 15th International Feed Technology Symposium Feed-to-Food /Cost Feed for Health Joint Workshop, October 3-5, 2012, Novi Sad, Serbia -.
  21. Hizli, H., T. Ayasan, N. Kilicalp, U. Kara and E. Karakozak et al., 2012. The effects of repeated superovulations on the quality of embryo of donor cows and heifers. YYU Vet. Fak. Derg., 23: 11-14.
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  22. Gok, K., T. Ayasan, A. Tekgul, H. Hizli and E. Karakozak et al., 2012. The effect of somatic cell count on the quality of embryo in donor cows. Suleyman Demirel Univ. Ziraat Fakultesi Dergisi, 7: 49-55.
  23. Ayasan, T., K. Gok, A. Asarkaya, H. Hizli and M. Gorgulu et al., 2012. The effects of corn silage and sugar beet pulp on fattening performance, blood parameters and carcass characteristics of bulls. Suleyman Demirel Univ. Ziraat Fak. Derg., 7: 64-73.
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  24. Ayasan, T., E. Yazgan and A. Asarkaya, 2012. The effect of body condition score on milk composition. J. Fac. Vet. Med. Univ. Erciyes, 9: 89-93.
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  25. Ayasan, T., A. Asarkaya, H. Hizli, K. Gok and A. Tekgul et al., 2012. The effect of body condition score on embryo quality of Holstein cows. Kafkas Univ. Vet. Fak. Derg., 18: 91-94.
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  26. Ayasan, T. and E. Karakozak, 2012. Effects of use of inoculant in silages composed of different forage crops on crude nutrient content and quality. Fyrat Univ. Vet. J. Health Sci., 26: 93-98.
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  27. Kara, U., T. Ayasan, H. Hizli and K. Gok, 2011. Effect of ovsynch protocol on pregnancy rate in heifers and cows. J. Fac. Vet. Med. Univ. Erciyes, 8: 1-8.
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  28. Hizli, H., T. Ayassan, K. Gok, U. Kara and N. Kilicalp et al., 2011. The determination of relationship between age and the quality of embryo of donor cows. Kafkas Univ. Vet. Fak. Derg., 17: 493-497.
  29. Baylan, M., S. Canogullari, T. Ayasan and G. Copur, 2011. Effects of dietary selenium source, storage time and temperature on the quality of quail eggs. Biol. Trace Elem. Res., 143: 957-964.
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  30. Ayasan, T., S. Yurtseven, M. Baylan and H.R. Kutlu, 2011. Effects of boric acid supplementation on egg production and quality of Japanese quails (Coturnix coturnix Japonica). Indian J. Anim. Sci., 81: 534-536.
  31. Ayasan, T., H. Hizli, K. Gok, N. Kilicalp and U. Kara et al., 2011. Effect of season upon the embryo quality in donor cows. J. Fac. Vet. Med. Univ. Erciyes, 8: 181-185.
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  32. Ayasan, T., H. Hizli, A. Camlidag, U. Kara and K. Gok et al., 2011. The determination of relationship between milk production and the quality of embryo of donor cows. Indian J. Anim. Sci., 81: 912-914.
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  33. Ayasan, T., H. Hizli and E. Yazgan, 2011. The effect of milk urea nitrogen on milk composition in Holstein dairy cows. Eur. J. Vet. Sci., 27: 219-222.
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  34. Ayasan, T., 2011. Soybean silage and usage of animal nutrition. Erciyes Universitesi Veteriner Fakultesi Dergisi, 8: 193-200.
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  35. Ayasan, T. and M. Baylan, 2011. Importance of organic selenium in farm animal nutrition. J. Agric. Fac. Suleyman Demirel Univ., 6: 34-43.
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  36. Ayasan, T. and F. Okan, 2011. Threonine requirement of female broilers from 22 to 42 days of age. Suleyman Demirel Univ. Ziraat Fak. Derg., 6: 15-21.
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  37. Ayasan, T. and E. Karakozak, 2011. Use of protected fats in animal nutrition. Ataturk Universitesi Veteriner Bilimleri Dergisi, 6: 85-94.
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  38. Yucel, C. and T. Ayasan, 2010. The effect of different incubation times on in vitro digestibility of some common vetch (Vicia sativa L.) cultivars grown under cukurova conditions. Gaziosmanpasa Univ. Ziraat Fak. Derg., 27: 1-8.
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  39. Yaman, S., M. Yildirim, S. Askar, V. Karakas, A. Bilgen, M. Avci and T. Ayasan, 2010. Effect of storage method and forage dry matter on fermentation characteristics, aerobic stability of alfalfa ensiled in round bales. Proceedings of the 9th International Symposium of Animal Biology and Nutrition, September 23-24, 2010, Bucharest, Romania -.
  40. Karakozak, E. and T. Ayasan, 2010. Use of protected methionine in ruminant nutrition. Suleyman Demirel Univ. Ziraat Fak. Derg., 5: 58-66.
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  41. Karakozak, E. and T. Ayasan, 2010. Effects of using inoculant in silages in which different forage crops on crude nutrient content and flieg point. Kafkasbn. Vet. Fak. Dergisi., 16: 987-994.
  42. Canogullari, S., T. Ayasan, M. Baylan and G. Copur, 2010. The effect of organic and inorganic selenium supplementation on egg production parameters and egg selenium content of laying Japanese quail. Kafkas Univ. Vet. Fak. Derg., 16: 743-749.
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  43. Ayasan, T., 2010. Use of pea (Pisum sativum L.) in ruminant and poultry nutrition. J. Agric. Fac. Suleyman Demirel Univ., 5: 74-82.
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  44. Ayasan, T., 2010. Use of cassava and products in animal nutrition. J. Agric. Fac. Gaziosmanpasa Univ., 27: 73-83.
  45. Ayasan, T., 2010. Use of Vicia ervilia L. in animal nutrition. Kafkas Universitesi Veteriner Fakultesi Dergisi, 16: 167-171.
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  46. Ayasan, T. and F. Okan, 2010. Effects of diets containing different levels of threonine and lysine aminoacids on fattening performance of broiler chicks. J. Faculty Agric. Suleyman Demirel Univ., 5: 36-43.
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  47. Ayasan, T. and E. Karakozak, 2010. Use of β-carotene in animal nutrition and its effects. Kafkas Universitesi Veteriner Fakultesi Dergisi, 16: 697-705.
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  48. Ayasan, T. and E. Karakozak, 2010. Nutrition of donor cows. Kafkas Universitesi Veteriner Fakultesi Dergisi, 16: 523-530.
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  49. Ozcan, B.D. and T. Ayasan, 2009. Biotechnology applications in animal nutrition. Tavukculuk Arastırma Dergisi, 8: 58-63.
  50. Canogullari, S., M. Baylan and T. Ayasan, 2009. Threonine requirement of laying Japanese quails. J. Anim. Vet. Adv., 8: 1539-1541.
  51. Ayasan, T., F. Okan and H. Hizli, 2009. Threonine requirement of broilers from 22 to 42 days. Int. J. Poult. Sci., 8: 862-865.
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  52. Ayasan, T., 2009. Importance of milk urea nitrojen of dairy cow nutrition. Gaziosmanpasa Un. Ziraat Fakultesi Dergisi, 26: 27-33.
  53. Ayasan, T. and E. Karakozak, 2009. Use of distillers dried grains with solubles in animal nutrition. Turk. Poult. Mag., 8: 42-49.
  54. Ayasan, T., 2007. Organic minerals in animal nutrition. Cukurova Universitesi Ziraat Fakultesi Dergisi, 22: 21-28.
  55. Baylan, M., S. Canogullari, T. Ayasan and A. Sahin, 2006. Dietary threonine supplementation for improving growth performance and edible carcass parts in Japanese quails, Coturnix coturnix Japonica. Int. J. Poult. Sci., 5: 635-638.
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  56. Ayasan, T., B.D. Ozcan, M. Baylan and S. Canogullari, 2006. The effects of dietary inclusion of probiotic protexin on egg yield parameters of Japanese quails (Coturnix coturnix Japonica). Int. J. Poult. Sci., 5: 776-779.
    CrossRef  |  Direct Link  |  
  57. Ayasan, T. and F. Okan, 2006. Determination of threonine requirements of female broiler chicks in starter period. J. Agric. Fac., 21: 41-48.
  58. Ayasan, T., S. Yurtseven, M. Baylan and S. Canogullari, 2005. The effects of dietary yucca schidigera on egg yield parameters and egg shell quality of laying Japanese quails (Coturnix coturnix japonica). Int. J. Poult. Sci., 4: 159-162.
    CrossRef  |  Direct Link  |  
  59. Ayasan, T., F. Okan, S. Yurtseven, A.N. Uluocak and M. Baylan, 2002. Effects of boric acid supplementation on fattening performance and carcass characteristics of Japanese quail. J. Agric. Fac. Cukurova Univ., 17: 1-6.
  60. Okan, F., T. Ayasan and A.N. Uluocak, 2001. Effects of dietary seaweed extract (Maxicrop) on egg production parameters and egg shell quality of laying japanese quails. Proceedings of the 9th European Symposium on the Quality of Eggs and Egg Products, September 9-12, 2001, Kusadası, Turkey, pp: 293-298.
  61. Ayasan, T., 2001. Threonine amino acid and importance of poultry nutrition. J. Agric. Fac. Cukurova Univ., 16: 107-116.
  62. Ayasan, T., 2001. New developments in feed formulation. Turk. Poult. Magaz., 207: 65-70.
  63. Baylan, M., A.N. Uluocak, T. Ayasan and T. Sentut, 2000. Variation of carcass characteristics according to age and sex of quails. J. Agric. Fac. Cukurova Univ., 15: 107-110.
  64. Ayasan, T., M. Baylan, A.N. Uluocak and O. Karasu, 2000. Effects of sex and different stocking densities on the fattening characteristics of Japanese quails. J. Poult. Res., 2: 47-50.
  65. Ayasan, T., F. Okan, A.N. Uluocak and M. Baylan, 2000. Effects of restricted feeding on fattening and carcass composition of Japanese quail. J. Agric. Fac. Cukurova Univ., 15: 89-94.
  66. Ayasan, T. and F. Okan, 2000. The important of Ca and P on animal nutrition. TIGEM Dergisi, 15: 19-24.
  67. Ayasan, T. and F. Okan, 2000. Japanese quail and its nutritional requirements. Section II. Enformasyon Anim. Dergisi, 16: 33-39.
  68. Yildirım, H., T. Ayasan and A.N. Uluocak, 1999. The behaviour of quail. Turk. Poult. Magaz., 185: 69-73.
  69. Ayasan, T., S. Yurtseven and E. Karakozak, 1999. Lysine and its importance of poultry nutrition. TIGEM Dergisi, 71: 9-15.
  70. Ayasan, T. and F. Okan, 1999. The important of vitamin C on poultry nutrition. Turk. Poult. Magaz., 190: 61-66.
  71. Ayasan, T. and F. Okan, 1999. Japanese quail and its nutritional requirements. Section 1. Int. Anim. Enformasyon Dergisi, 16: 52-61.
  72. Okan, F., A.N. Uluocak, S. Canogullari and T. Ayasan, 1998. Effects of grower diets differing in crude protein and energy levels on egg productions of quails. J. Agric. Fac. Cukurova Univ., 13: 57-66.
  73. Ayasan, T. and E. Karakozak, 1998. Methionine and its importance of poultry nutrition. Turk. Poult. Magaz., 178: 46-50.