振宁矮脚黄鸡新品系培育

摘要

The pure lines of Zhenning yellow dwarf chicken containing dw gene were introduced into local variety chickens (R lines) cultivated by Ningbo Zhenning Farming Co.,Ltd. to cultivate new strain of yellow dwarf chicken containing homozygous dw gene, K lines. The selected new strain of Zhenning yellow dwarf chicken had similar somatotype and appearance, and had favorable production performance:plump chest, smooth muscle, fine pore, and short shank. The shank length of cock was shorter than 6.0 cm, and that of hen was shorter than 5.5 cm. The 16-week-old body weight of cock was higher than 1.70 kg, and that of hen was higher than 1.25 kg.%将含有dw基因的纯系黄鸡导入宁波市振宁牧业有限公司选育的地方品种鸡群（R系）内，培育出新的含有纯合dw基因品系K系。选育出的振宁矮小型黄鸡品系K系，体型外貌一致，胸肌丰满，鸡肉光滑，毛孔细小，胫短；公鸡胫长6.0 cm以下，母鸡胫长5.5 cm以下；公鸡16周龄体重在1.70 kg以上，母鸡在1.25 kg以上。