高密度层叠式饲养模式下蛋鸡热应激观察及经济损失研究
发布时间:2018-12-11 06:11
【摘要】:研究以八层层叠式蛋鸡饲养模式的鸡舍作为研究观测对象,鸡舍内存栏海兰褐产蛋鸡数量为101 952只,研究夏季鸡舍内平均温度30℃、相对湿度72%~80%条件下热应激对蛋鸡生产性能和经济效益的影响。结果显示:采用高密度层叠式饲养模式饲养的蛋鸡群在夏季高温季节会出现典型的热应激现象,包括产蛋率下降、蛋重减小、采食量下降、周死淘率上升等现象,造成的直接经济损失平均达1.5元/只。建议在此养殖模式下蛋鸡热应激的防治应从环境控制、饲养管理和营养调控三方面综合考虑。
[Abstract]:In this study, 101,952 layers of Hailan brown laying hens were stored in the henhouse, and the average temperature of the henhouse in summer was 30 鈩,
本文编号:2372027
[Abstract]:In this study, 101,952 layers of Hailan brown laying hens were stored in the henhouse, and the average temperature of the henhouse in summer was 30 鈩,
本文编号:2372027
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