Poultry Studies 2015, Vol 12, Num, 1     (Pages: 001-004)

Effect of Egg Orientation on Malposition in Hatching Eggs

İsmail Durmuş 1 ,Serdar Kamanlı 2 ,Serpil Akçay 3 ,Sezai Alkan 1

1 Ordu Üniversitesi, Ziraat Fakültesi, Zootekni Bölümü
2 Tavukçuluk Araştırma Enstitüsü
3 Abant İzzet Baysal Üniversitesi, Ziraat ve Doğa Bilimleri Fakültesi, Kanatlı Hayvan Yetiştiriciliği Bölümü
- This research was conducted to determine the effects of orientation in the hatching eggs on hatching results and position disorders, so the eggs were placed in incubator for 3 groups as orientation of normal, horizontal and small up. In this study, 1680 hatching eggs were divided into 3 groups with 7 replicates of 80 eggs in each. Hatchability of fertile eggs, malformation ratio, malposition ratio, weight loss ratio, chick quality, embryo death ratios in the early, middle and late stage of embrogenesis and mortality ratio were investigated in this research. There were significant differences among the groups in terms of egg weight loss ratio, embryo death in the late stage of embryogenesis, malposition ratio, hatchability of fertile eggs and hatchability, whereas no significant differs among the groups in respect to malformation ratio, chick quality, embryo death in early and late embryogenesis.

It was determined that the late embryonic mortality increased because of the position errors in case of hatching eggs orientation and the head of the embryo in small up of eggs. Keywords : Hen, hatching eggs, hatching result, malposition