【摘要】 对仙湖肉鸭第13世代A系核心群60个家系360只母鸭和B系核心群48个家系288只母鸭的产蛋性能进行观测、记录,并统计分析。结果显示:A系种鸭平均开产日龄比B系稍迟,平均开产体重比B系大,开产蛋重则比B系轻,但A、B两系这三个指标均差异不显著;B系种鸭的繁殖性能明显优于A系种鸭,其50周龄、64周龄产蛋数、种蛋受精率、受精蛋孵化率均比A系高,且差异极显著;B系种鸭每个月的产蛋率要比A系高5～10个百分点。更多还原

【Abstract】 The laying performance of 360 female ducks from 60 families of core group A and 288 ducks from 48 families of core group B in the 13th generation of Xianhu meat Ducks were observed,recorded and analyzed.The results showed that the average age of producing first egg of female ducks of group A was later than that of group B,and the average weight of producing first egg of female ducks of group A was less than that of group B.However,the differences were not significant.Compared with the female ducks from group A,the average reproduction performance from that of group B were much more excellent.The egg numbers,egg fertility rate and hatchability of fertile eggs of female ducks from group B were much higher than that of female ducks from group A in 50 W and 60 W(P < 0.05).The monthly laying rate of female ducks from group B were 5% to 10% higher than that from group A.更多还原