ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2015, Vol. 46 ›› Issue (7): 1102-1106.doi: 10.11843/j.issn.0366-6964.2015.07.004

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The Measurement of Hatchability of Eggs from Intercrossing of Tibet and Chahua Chickens under Hypoxic Incubation

GOU Wen-yu,ZHANG Ya-wen,ZHANG Qian,ZHANG Hao*,WU Chang-xin   

  1. (National Engineering Laboratory for Animal Breeding,College of Animal Science and Technology,China Agricultural University,Beijing 100193,China)
  • Received:2014-09-28 Online:2015-07-23 Published:2015-07-23

Abstract:

The aim of this study was to investigate the effect of Tibet chicken as male and female parents on hypoxia development of hybrid eggs.Eggs from Tibet × Tibet (TT),Chahua × Chahua (CC),Tibet × Chahua (TC) and Chahua × Tibet (CT) chickens were incubated under hypoxic condition.Then the hatchability of eggs were examined.The results showed that the hatchability of TC (36.41%) and CT (39.57%) groups were significantly higher than that of CC group (16.97%) under 13% oxygen concentration (equivalently 3 980 m altitude).Eggs from Tibet hens (including TT and CT groups) had a higher egg weight and a lower water loss during incubation than eggs from Chahua hens (including CC and TC groups).The results indicated that the egg weight and the water loss during incubation were mainly determined by female parent.The intercrossing eggs between Tibet chicken and Chahua chicken had higher hatchability and had stronger heterosis in traits of hypoxic hatchability.There was no significant difference in hypoxic hatchability of eggs between TC and CT groups.The embryo development of eggs from Tibet chicken as female parent was better at early stage and embryo development of eggs from Tibet chicken as male parent was better at last stage under hypoxic incubation.

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