海兰褐壳蛋鸡在热带地区产蛋性能的研究

摘要

This article studied the laying performance of 18 -60 -week -old Hyline brown laying hens in Hainan provincial tropical area through the statistical analysis of laying rate, egg weight and other production indexes. The results showed that the eggs laid by Hyline brown laying hens sharply increased since the 19th week after the first egg - laying, and reached the fastigium, then main-' tained for about 10 weeks, finally slowly decreased. The egg - laying trend in the whole process (except the 26th week) was similar with the standard egg - laying curve. It indicated that the laying performance of Hyline brown laying hens could basically meet the breed standard, and they could express their genetic proficiency when they were reared in Hainan tropical area.%通过统计18 ～60周龄海兰褐壳蛋鸡产蛋率和蛋重等生产指标,并与其标准产蛋率和蛋重指标进行对比分析,描绘产蛋曲线来研究两者之间的相关性及差异,从而探讨海兰褐壳蛋鸡在海南热带地区饲养产蛋性能能否达到品种标准.结果表明:海兰褐壳蛋鸡在开产后,从19周开始,急剧上升到高峰期,并且能维持10周左右的时间,然后才开始缓慢下降；整个过程除第26周外,趋势同标准产蛋曲线基本一致；说明海兰褐壳蛋鸡产蛋性能基本能达到品种标准,海南热带地区饲养也能发挥其遗传潜能.