母猪产程影响因素的研究进展

Research Progress on Factors Affecting Sows' Duration of Farrowing

产程是母猪重要的繁殖性状之一,对于产仔性状等经济指标有很大影响,产程过长可能会导致死胎率增多、新生仔猪活力降低、母猪易感染疾病等不良后果。在现代规模化生猪养殖中母猪产程过长的问题普遍存在。因此,本文就关于母猪产程的国内外相关研究进行综述,提出7个对于产程有较大影响的因素,同时探讨缩短产程的可行方法,以期减少因母猪分娩时间过长为养猪生产者带来的损失。

The duration of farrowing is one of the important reproductive traits of sows,and has a great influence on economic traits such as other farrowing traits.Long duration of farrowing may lead to increased stillbirth rates,decreased vitality of newborn piglets,and for sows,more susceptible to disease.However,in the modern environment of large-scale pig production,the problem of sows'long duration of farrowing is widespread.Therefore,this article summarizes the research results of domestic and foreign scholars on the duration of farrowing in recent years,and puts forward seven factors that have great impacts on that.Furthermore,I search possible methods to shorten the farrowing in order to reduce the pig producers’loss caused by the long duration of farrowing of sows.