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机构地区:[1]河北科技师范学院,河北秦皇岛066004 [2]张家口市家畜改良站,河北张家口075000
出 处:《河北农业科学》2015年第4期89-92,105,共5页Journal of Hebei Agricultural Sciences
基 金:河北省现代农业产业技术体系蛋鸡产业创新团队项目;河北省现代农业攻关计划项目(15226302D)
摘 要:为研究生态因子对中国地方鸡品种生产性能的影响以及河北省各县(区)的引种效果,作者采集了110个中国地方鸡品种的生产性能指标及其所在地的生态因子数据以及河北省内136个县(区)的生态因子有关数据,建立了中国地方鸡品种生态因子对生产性能指标的回归方程;并利用所建立的回归方程,对河北省各县(区)地方鸡品种引种的平均效果进行了预估。结果表明:平均海拔、年均日照时数和平均无霜期是影响中国地方鸡生产性能的主要生态因子;河北省引种地方鸡的预估平均体重、宰前活重、屠体重、腿肌率、胸宽、骨盆宽和蛋重,以及公鸡体斜长、龙骨长和母鸡胫围均>中国地方鸡品种,尤其是预估的平均体重、宰前活重、屠体重比较突出。The regression equation of Chinese chicken breeds ecological factors on production performance was established using the production performances and ecological factors of 110 Chinese indigenous chicken breeds and the ecological factors of 136 Counties ( Districts ) in Hebei Province, in order to investigate the effect of ecological factors affecting performance of Chinese indigenous chicken breeds, and evaluate the effect of their introduction results in Hebei Province. The results indicated that the average altitude, the average annual sunshine hours and the average frost free period were the main ecological factors affecting the performance of local chicken production. The estimated average weight, live weight before slaughter, carcass weight, leg muscle rate, body length ( cock ) , chest width, keel length ( cock ) , pelvis width, shank length(hen) and egg weight of chicken breeds introduced into Hebei Province will higher than that of the average performance of Chinese indigenous chicken breeds, especially for the average weight, live weight before slaughter and slaughter rate.
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