Study on the death regular pattern of embryo of chicken during the hatching period
2003; Northwest A&F University; Linguagem: Inglês
ISSN
1671-9387
Autores Tópico(s)Animal Nutrition and Physiology
ResumoBreeding eggs of Avine chicken for meat were divided into three groups selected from 4 henhouses and hatched in same hatcher for the purpose of studying the death regular pattern of embryo during the hatching period.The egg shape index ranged from 72% to 81% and the egg weight ranged from 56 to 68 grams.The results showed that there are two main fastigiums in death curve during the hatching period,one is in 4-6 day and another is in 17-19 day.The rest embryo ages were divided into three phases by the two pinnacles and the difference of died embryo among three phases is not significant.The results in this paper is not incompletely consistent with commonly experience value.
Referência(s)