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qian xi nai niu gu ruan zheng de zhong xi yi jie he zhi liao fang fa
Author(s): 
Pages: 58-59
Year: Issue:  6
Journal: China Dairy Cattle

Abstract:  奶牛骨软症是由于钙磷代谢紊乱而引起的一种成年奶牛骨质脱钙的慢性营养代谢性疾病,兽医临床上将其列于"痿症"的范围.近年来随着奶牛业的迅速发展,奶牛集约化养殖的普及,奶牛骨软症得到了很好的控制,但是由于品种的改良,精液品质的提升等因素使得高产奶牛大批涌现.某些奶牛养殖场使用的饲料及某些厂家生产的饲料还停留在针对中等生产性能奶牛的生产标准,加上部分饲养者管理不当,饲料中钙、磷不足或比例不当,目前该病时...
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