breeders相关论文
为探究本交笼养模式中与公鸡遗传贡献率相关指标的特性及公母配比,本实验选取2种本交笼模式,一种为大型本交笼(Ⅰ型),单笼饲养100......
利用贵州省家畜冷冻精液站西门塔尔种公牛2006、2007、2008年采精量、鲜精活力、冻精活力和合格冻精产量7172条记录,建立动物模型,......
Bioavailability and Immunity Response in Broiler Breeders on Organically Complexed Zinc Supplementat
Two hundred and sixty four broiler breeder hens of 32 weeks of age were distributed randomly in four dietary treatments.......