Farklı yaşlarda etlik damızlık sürülerden elde edilen yumurtalarda çevirmenin inkubasyonun 14. ve 18 günlerinde durdurulmasının kulaçka özelliklerine etkileri

Bu araştırma, farklı yaşta etlik damızlık sürülerden elde edilen kuluçkalık yumurtalarda, çevirme işleminin, İnkubasyonun 14. ve 18. gün de durdurulmasının kuluçka özellikleri üzerine etkisini belirlemek amacıyla yürütülmüştür. Araştırmanın yumurta materyalini, 28-53 hafta arasında 6 farklı sürü yaşında olan ve tümü Ross 308 genotipine ait etlik damızlık sürülerinden toplanan kuluçkalık yumurtalar oluşturmuştur. Denemede toplam 7200 adet kuluçkalık yumurta kullanılmıştır. Son dönem embriyo ölümleri ile çıkış gücü bakımından, sürü yaşı ile inkubasyon sırasında çevirmenin durdurulma zamanı arasında karşılıklı etkileşim (kıteraksiyon) istatistik olarak önemli bulunmuştur (P

Effect of cessation of turning at 14 and 18 days of incubation period on hatc hability of eggs from broiler breeder flocks at different ages

This experiment was intended to investigate the effect of cessation of turning at either 14 or 18 days of age on eggs from breeder hens of different ages. In this experiment totally 7200 hatching eggs were used and eggs were collected from commercial flocks of Ross * Ross 308 within the same company at six different ages ranging from 28 to 53 weeks. There was a significant flock age *turning treatment interaction for late embriyonic mortality and fertile hatchability that indicated that the effect was greater at the older age of breeder hen, i.e. stopping of turning at 14 days had a beneficial effect on the hatchability of the eggs from older flock in comparison to the eggs from the younger flock. Turning beyond 14 days seemed to actually increased the percentage late dead in the eggs from the older flock.

PDF

___

Byerley, T. C. and M. W. Olsen, 1936. Certain factors affecting the incidence of malpositions among embryos of the domestic fowl. Poultry Sci, 15, 163-168.
Cards, L. E. 1926. Incubator eggs turned first six days hatch well. Rep. Illinois Agric. Exp. Stn., 39, 78.
Deeming, D. C. 1989a. Characteristics of unturned eggs: Critical period, retarded embryonic growth and poor albumen utilization. Brit. Poult. Sci, 30, 239-249.
Deeming, D. C. 1989b. Importance of sub-embryonic fluid and albumen on the embryo's response to turning of the egg during incubation. British Poultry Sci, 30, 591-600.
Düzgüneş, O., T. Kesici, O. Kavuncu ve F. Gürbüz, 1987. İstatistik Metotları II. Ankara Üniv. Ziraat Fak. Yayınları 1021, Ders Kitabı 295. Ankara.
Elibol, O. ve M. Türkoğlu, 2001 .Gelişim makinelerinde tekli ve çoklu girişin broiler damızlık yumurtaların kuluçka ; özelliklerine etkisi. Türk Veterinerlik ve Hayvancılık Dergisi, 25(3)335-339.
French, N. 1997. Modelling incubation temperature; The effects of incubator design , embryonic development and egg size. Poultry Sci, 76, 124-133.
Insko, W. M. and J. H. Martin, 1933. Effect of frequent turning on hatchability and distribution of embryo mortality. Poultry Sci, 12, 282-286.
Kaltofen R. S. 1961. The effect of fertility rate and frequency of turning on embryonic mortality during artificial incubation. Anim. Breed. Abstr., 29, 106-107.
Lundy, H. 1969. A review of the effects of temperature, humidity, turning and gaseous environment in the incubator on hatchability of hen's eggs. Pages 143-176 in: The Fertility and Hatchability of the Hen's Egg. T. C. Carter and B. M. Freeman, eds. Oliver and Boyd, Edinburgh, Scotland, UK.
New, D. A. T. 1957. A critical period for the turning of hen's eggs. J. Embryol. Exp. Morph., 5, 293-299.
North, M. O. 1984. Commercial Chicken Production Manual. 3rd ed. Avi Publishing Co. Westport, CT.
Meijerhof, R. 1999. Embryo temperature is the key factor in incubation. World Poultry-Misset, 15 (10) 42-43.
Mirosh, W. L, C. L Jakabosky and J. D. Kirby, 1990. Hatching response to cessation of turning chicken eggs between ten and eighteen days of incubation. Poutry ScL, 69 (1) 95.
Olsen, M. W. and T. C. Byerley, 1936, Multiple turning and orienting eggs during incubation as they effect hatchability. Poultry ScL, 15,88-95-
Orlov, M. V. 1962. Biological principles of incubation. Poultry Science and Practice, 2, 244-323.
Owen, J. 1991. Principles and Problems of Incubator Design. Chapter 13. Avian Incubation (Edited by S.G. Tullett).
Proudfoot, F. G., H. W. Hulan, and K. B. Mcrae, 1981. The effect of transferring hen eggs from turning to stationary trays after 13 to 20 days of incubation on -subsequent hatchability and general performance. Poultry Sci, 60, 302-306.
Randies, C. A. and A. L Romanoff, 1950. Some physical aspects of the amnion and allantois of the developing chick embryo. Journal of Experimental Zoology, 114, 87-101.
Robertson, I. S. 1961a. The influence of turning on the hatchability of hens' eggs. I. The effect of rate of turning on hatchability. J. Agric. Sci, 57, 49-56.
Robertson, I. S. 1961b. The influence of turning on the hatchability of hens' eggs. II. The effect of turning frequency on the pattern of mortality, the incidence of malpositions, malformations and dead embryos with no somatic abnormality. J. Agric. Sci, 57, 57-69.
Romanoff, A. L. 1960. The Avain Embryo. New York, Macmillan.
Tazawa, H. 1980. Adverse effect of failure to turn the avian egg on the embryo oxygen exchange. Respiration Physiology, 41,137-142.
Tulett, S. G. and D. C. Deeming, 1987. Failure to turn eggs during incubation. The effects on embryo weight, development of the choriallantois and absorption of albumen. British Poultry Sci, 28, 239-249.
Tullett, S. G. 1995. Incubation. World Animal Sci, Poultry Production (Edited by P.Hunton). Elsevier.
Wilson, H. R. 1991. Physiological Requirements of the Developing Embryo: Temperature and Turning. Pages 145-156 in: Avian Incubation, S. G. Tullett, ed. Butterworth Heinemann, London.
Wilson, H. R. and R. F. Wilmering, 1988. Hatchability as affected by egg turning in high density plastic egg flats during the last, half of incubation. Poultry Sci, 67, 685-688.