摘要
选择73周龄经过强制换羽的健康罗曼粉B系和D系祖代蛋种鸡各180只,分别分为3组,每个单笼(38cm×36cm)内分别放置4、3和2只,每只鸡占有的笼底面积相应为342、456和684cm2,其他各项饲养管理条件相同,以研究饲养密度对罗曼粉祖代种母鸡产蛋性能的影响。结果表明:饲养密度与鸡群的产蛋率和种蛋合格率呈负相关,随着饲养密度的降低,鸡群的产蛋率和种蛋合格率不断提高;品系母鸡对饲养密度的反应相似。
180 hens of strain B and strain D of Lohmann pink grandparent were divided into 3 groups. There were 4, 3 or 2 hens raised in one single cage and the area of cage bottom per bird of these groups was 342, 456 or 684cm^2 corresponding. Other conditions of feeding and management were sameness to study on the effect of raising density on the reproduction performance of lohmann pink bert. The results showed that there was difference in the lower raising density, the higher laying rate and hatchable egg rate. The effect of raising density on reproduction performance between strain B and strain D was same.
出处
《安徽农业科学》
CAS
北大核心
2006年第12期2756-2757,共2页
Journal of Anhui Agricultural Sciences
基金
河南省科技攻关项目:蛋鸡生态养殖技术研究
课题编号:0524050008。
关键词
饲养密度
罗曼粉祖代母鸡
品系
产蛋率
种蛋合格率
Raising density
Lohmann pink hens
Strain
Laying performance
Hatchable egg rate
