种鸭育雏季节对性成熟和产蛋性能的影响

摘要

This study was conducted to investigate the effects of brooding season on sexual matu-rity and reproductive performance of duck. A total of 1440 female Liancheng white duck were equal allocated to 4 groups with different seasons. The results showed that the first laying age is 114 days of spring brooding female duck, earlier than the first laying age is 132, 124, 121 days of summer(P<0.01), autumn and winter (P<0.05)brooding female duck, the laying rate of spring brooding female duck higher than summer(P<0.05), autumn and winter (P>0.05)brooding female duck, and female duck of brooding different season had no significant influence on the rate of unqualified egg(P>0.05).%为研究育雏时期对鸭性成熟和产蛋性能的影响，试验以连城白鸭母鸭为研究对象，分别选择春、夏、秋、冬4个不同季节出雏种母鸭各360只，共计1440只，统计分析不同季节出雏的种母鸭性成熟日龄、产蛋率、种蛋率和次蛋率。结果表明：春季出雏的种母鸭开产日龄为114d，较早于夏季出雏的开产日龄132d（P<0.01）和秋、冬季出雏的开产日龄124d 和121d 天（P<0.05）；同时，春季出雏的种母鸭产蛋率显著高于夏季出雏的（P<0.05），略高于秋、冬季出雏的种鸭产蛋率（P>0.05）；4个不同季节出雏的种母鸭次蛋率和种蛋率均无显著差异（P>0.05）。