海兰褐父母代母雏鸡羽毛脱换规律观察

目的]观察蛋用雏鸡羽毛脱换过程,了解羽毛脱换规律,为雏鸡的饲养管理提供参考。方法]通过观察海兰褐父母代10只母雏(快羽)各个部位绒毛的脱换,了解雏鸡羽毛脱换规律。从雏鸡出壳接入育雏室当天开始,将10只母雏放在1个笼内,每天下午15:00~16:00观察记录每只雏鸡的羽毛脱换情况。结果]母雏鸡各部位绒毛开始脱换的顺序为:翼部→尾部→胸部两侧→大腿部→背腰部→颈部→腹部正下方→胸部正下方→小腿部→头部→腹部两侧,各部位绒毛结束脱换的顺序为:尾部→翼部→胸部两侧→大腿部→背腰部→腹部正下方→颈部→小腿部→头部→腹部两侧→胸部正下方。结语]翼部和尾部是最早开始和结束羽毛脱换的部位,体躯部位脱换较晚,雏鸡55日龄完成第一次羽毛脱换过程。

Observation of the Disciplinarian of Feather-moulting of Female Hyline Brown Chick

To find out the disciplinarian of feather-moulting of chick,the course of feather-moulting of ten chicks were observed.The results showed that the order of the feather-moulting of chick was starting from wing to tail,breast sides,huckles,back and waist,cervix,abdomen,breast,calfs,head,abdomen sides.The sequence of complete moulting part was tail,wing,breast sides,huckles,back and waist,abdomen,cervix,calfs,head,abdomen sides and breast.