奶牛胎衣不下的发生规律与综合防治调查

Integrated Control Investigate and Occurrence Regularity of Retained Placenta in Cow

本调查对伊宁市郊区部分小规模牛场和养殖户饲养的奶牛进行跟踪记录,将一年内的奶牛胎衣不下情况进行统计分析。结果表明:奶牛胎衣不下的发生呈季节性,而产公犊的奶牛发病率略高于产母犊,并随着奶牛胎次的增加,奶牛患有胎衣不下的概率增高;产双胎的母牛胎衣不下的发病率明显高于产单胎的母牛,差异极显著(P<0.01)。怀孕过长或过短与正常怀孕时间的奶牛胎衣不下发病率有显著差异(P<0.05)。另外,本文结合生产实际对胎衣不下的治疗与预防措施做简要的介绍,以期为有效防治该病提供参考。

The objective of this research was to investigate and analyze the retained placenta of the cow at small-scale dairy farms and scattered herds in suburbs of Yining city in one year. The results showed that the cow＇s retained placenta had a seasonal variation, and the incidence of the disease for the cows which delivered bull calves were higher than that of delivering female calves. With the increase of parity, the probability of retained placenta also increased. The probability of retained placenta in the biparous cows was significantly higher than single bearing cows（P〈0.01）. The duration of pregnancy was different for retained placenta（P〈0.05）. In addition, we introduced how to prevent and cure retained placenta in the production practice, hoping it could provide reference tively. for preventing and curing retained placenta effectively.