Characterization of clutch traits and egg production in six chicken breeds

文献类型： 外文期刊

第一作者： Shi, Lei

作者： Shi, Lei;Li, Yunlei;Isa, Adam Mani;Ma, Hui;Yuan, Jingwei;Wang, Panlin;Ge, Pingzhuang;Chen, Jilan;Sun, Yanyan;Shi, Lei;Gong, Yanzhang

作者机构： Chinese Acad Agr Sci, Inst Anim Sci, Key Lab Anim Poultry Genet Breeding & Reprod, Minist Agr & Rural Affairs, Beijing 100193, Peoples R China;Hebei Agr Univ, Coll Anim Sci & Technol, Baoding 071001, Peoples R China;Huazhong Agr Univ, Coll Anim Sci & Technol, Key Lab Agr Anim Genet Breeding & Reprod, Minist Educ, Wuhan 430070, Peoples R China

关键词： Chicken; Clutch Length; Clutch Trait; Egg Production; Laying Performance

期刊名称：ANIMAL BIOSCIENCE （ 2022影响因子：2.2； 五年影响因子：2.3 ）

ISSN： 2765-0189

年卷期： 2023 年 36 卷 6 期

页码：

收录情况： SCI

摘要： Objective: The better understanding of laying pattern of birds is crucial for developing breed-specific proper breeding scheme and management.Methods: Daily egg production until 50 wk of age of six chicken breeds including one layer (White Leghorn, WL), three dual-purpose (Rhode Island Red, RIR; Columbian Plymouth Rock, CR; and Barred Plymouth Rock, BR), one synthetic dwarf (DY), and one indigenous (Beijing-You Chicken, BYC) were used to characterize their clutch traits and egg production. The age at first egg, egg number, average and maximum clutch length, pause length, and number of clutches and pauses were calculated accordingly.Results: The egg number and average clutch length in WL, RIR, CR, and BR were higher than those in DY and BYC (p<0.01). The numbers of clutches and pauses, and pause length in WL, RIR, CR, and BR were lower than those in DY and BYC (p<0.01). The coefficient variations of clutch length in WL, RIR, CR, and BR (57.66%, 66.49%, 64.22%, and 55.35%, respectively) were higher than DY (41.84%) and BYC (36.29%), while the coefficient variations of egg number in WL, RIR, CR, and BR (9.10%, 9.97%, 10.82%, and 9.92%) were lower than DY (15.84%) and BYC (16.85%). The clutch length was positively correlated with egg number (r = 0.51 to 0.66; p<0.01), but not correlated with age at first egg in all breeds.Conclusion: The six breeds showed significant different clutch and egg production traits. Due to the selection history, the high and median productive layer breeds had higher clutch length than those of the less productive indigenous BYC. The clutch length is a proper selection criterion for further progress in egg production. The age at first egg, which is independent of clutch traits, is especially encouraged to be improved by selection in the BYC breed.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序