奶牛肢蹄病对繁殖性能的影响

奶牛肢蹄病是规模化奶牛场最常见的疾病之一，普遍认为奶牛肢蹄病对奶牛业的经济损失仅包括降低产奶量、增加药物治疗费用和奶牛的淘汰率等，近几年国内外学者报道奶牛肢蹄病对繁殖性能有着不同程度的负面影响。作者就奶牛肢蹄病对卵巢囊肿发病率、卵泡发育、发情行为、首次配种天数、空怀期天数和淘汰率影响的研究情况进行了简要综述。

Effect of Lameness on Reproductive Performance in Dairy Cows

The cows’ lameness is one of the most common diseases in the modern dairy farms.It is widely believed that the economic losses of cows’ lameness only include reducing milk yield，increasing the cost of treatment and culling rate，and so on.In recent years, some scholars having reported that cows’ lameness has a different degree of negative impact on reproductive performance.In this paper，the latest research on the effects of cows’ lameness on the incidence of ovarian cysts，follicular development，estrus behavior，number of days to first service，the number of days to conception and cull rate were reviewed briefly.