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北京地区规模化奶牛场流产发病情况调查 被引量:5

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摘要 流产是指由各种原因引起胎儿或母体异常而导致妊娠的生理过程发生紊乱,或者胎儿与母体的正常关系受到破坏,而使妊娠中断的临床病理现象。奶牛生殖术语命名委员会将奶牛流产定义为:怀孕母牛于妊娠第42~260天之间发生孕体丢失的现象。奶牛流产可发生在妊娠的任何阶段,但以妊娠早期(42~90d)与后期(181~260d)的流产率相对较高。
出处 《中国兽医杂志》 CAS 北大核心 2011年第10期40-42,共3页 Chinese Journal of Veterinary Medicine
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