宫廷鸡(北京油鸡)的遗传育种研究

本文总结了作者在1996-1999年间对宫廷鸡的早期增重、产蛋量和体型外貌的选育工作.选育结果表明:90日龄公母鸡平均体重有显著提高,达到1 627.7g,500日龄产蛋量达到150.2枚,蛋重为50.0g.经3年800只外型特征统计:宫廷鸡凤冠率达100%,脚腿毛率达100%,S冠型率达100%,胡须率达70.1%,经体尺测量,胸宽8.2cm,胸深11.7cm,胸骨长16.8cm,均有显著提高.

A study on selection and breeding breed of Gongting chicken(Peking Oil-Chicken)

This paper emphasized the work on the Gongting chicken's body werght in early stage, fertility, type of build and appearance from 1996 to 1999. The result showed that the mean body werght of 90 days Gongting chicken reaches 1 627 70g ,the account of eggs lay by 500 days' chicken is 150 2 with mean egg weights being 50g, the fertilizing reaches 92.5%, the hatching rate of fertilized egg is 91%, the young living rate is 97.9%, the finish living rate is 96%. 800 Gongting chicken's with their appearance were counted the statistic were getten the phoenix cram rate is 100%, the egg feather rate reach 100%, shaped crown rate is 100%, the beard rate reach 70.1%. The Gongting chicken's breast size in horizon and verticality is 8.2cm and 11.7cm respectively, and it's longth reaches 11.8cm. All those statistics are higher than those unselected.