摘要
根据榆林市一些地方存在的蛋鸡进入产蛋高峰期不久,便出现的产蛋率下降等情况,选用添加剂对200只罗曼蛋鸡分两组饲喂并做对比试验,结果产蛋率、经济效益均获较好(P<0.01)的效果。
According to the phenomenon of decreasing output of eggs production rate, which often appeared not soon after the high production rate period in some place of Yulin county, 200 Hens were choosen make contrast experiment of using additive to feed in two groups. The result shows the eggs production rate, economic benefit are better (P<0.01).
出处
《家畜生态》
2003年第3期40-41,共2页
Ecology of Domestic Animal
关键词
蛋鸡
增产试验
饲料添加剂
产蛋期
产蛋率
additive
Roman egghen
eggs production rate
economic benefit
