配种次数、配种方式与母猪产仔情况的关系分析

Study on the Relationship between Mating Times and Manners of Sows and Its Delivery of Piglets

对某大型集约化养猪场2005年7月至2005年10月配种的长大(或大长)二元杂母猪分娩数据资料进行了整理和统计分析。结果表明,配种次数为3次的母猪其窝产活仔数多、窝重大、生产力综合指标较高;另一方面,混合配种方式母猪的情期受胎率、配种分娩率及产仔情况效果最好。

This study analyzed the data collected from the Landrace× Large White（Large White × Landrace）sows, which were mated form July to October in 2005. The results showed that the sows, which had three times of mating, had higher performance on living litter size, piglet birth weight and the total productivity. What＇s more, on the other hand, the sows of mixed mating had done the best in the conception rate of heat and birth rate as well as the situation of delivery.