母猪繁殖障碍成因分析

Pathogeny Analysis of Reproductive Disorder of Sows

繁殖障碍是导致母猪淘汰的最主要因素,直接造成母猪非生产天数延长,繁殖猪群生产效率降低,严重影响猪场的经济效益。就引起母猪繁殖障碍的多方面因素,包括营养因素(如饲养水平、饲料品质、断奶日龄)、环境因素(如温度、湿度、通风、光照)、疫病因素、生产技术及管理因素进行综述。

According to comprehensive analysis on nonproductive sow days and economic profit, longevity of breeding sows are influenced by a wide variety of factors, the most important of which is reproductive disorder. This review is focus on the effect of nutrition （feeding level, feed quality, weaning age）, environment （temperature, humidity, ventilation, photoperiod）, diseases, technology and management on the reproductive performance of sows.