批次化生产方式对经产母猪繁殖性能的影响

Effects of Batch Production on Reproductive Performance of Multiparous Sows

为了研究批次化生产与连续生产两种不同的生产方式对经产母猪繁殖性能的影响,试验选取3~5胎健康母猪180头,随机分为2组,试验组采用3周批次化生产方式,对照组采用连续生产方式,比较两组母猪的繁殖性能指标。结果表明:试验组母猪断奶7 d发情率、受胎率、分娩率、窝断奶仔猪数显著高于对照组(P<0.05);窝产总仔数、窝产活仔数、窝均死胎数高于对照组,但差异不显著(P>0.05)。本研究表明,批次化生产方式能够提高经产母猪的繁殖性能,适宜在规模化猪场推广应用。

In order to study the effect of batch production and continuous production on the reproductive performance of multiparous sows,180 healthy sows from 3 to 5 parity were selected and randomly divided into 2 groups.Subsequent production methods were adopted,and continuous production methods were adopted in the control group to compare the reproductive performance indicators of the two groups of sows.The results showed that:the estrus rate,conception rate,farrowing rate and the number of weaned piglets in the test group were significantly higher than those in the control group at 7 days after weaning(P<0.05).compared with the control group,but the difference was not significant(P>0.05).This study shows that batch production can improve the reproductive performance of multiparous sows,and is suitable for promotion and application in large-scale pig farms.