产仔季节对深县母猪繁殖性能的影响

Effects of the parturition seasons on reproductive performance in Shenxian sows

为了研究不同季节对深县母猪繁殖性能的影响,选用辛集市正农牧业有限公司2012年1月至2015年12月间的深县母猪的繁殖记录,统计分析不同产仔季节对深县母猪的各个繁殖性状。结果显示:深县母猪在春季的总产仔数最高,显著高于夏、冬两季(P<0.05);春季产仔母猪数最多,显著高于夏季(P<0.05);深县仔猪的初生窝重、初生个体重、断奶个体重在秋季最佳;断奶窝重在春季达到最佳;春、夏、秋季的断奶成活率显著(P<0.05)高于冬季。结果表明:深县母猪在春、秋两季的繁殖性能较好。

The present study was conducted to investigate the effect of different parturition seasons on reproductive performance in Shenxian sows.The breeding record of Shenxian sows（Xinji Co.,Ltd.,Hebei） were statistically evaluated on reproductive traits of different parturition seasons from January 2012 to December 2015.Results showed that the litter size in Shenxian sows was highest in spring,and significantly more than those in summer and winter seasons（P〈0.05）.In addition,the number of parturition sows was most in spring,significantly more than that in summer（P〈0.05）.Primary litter weights of piglets,birth weights and weaning weights in Shenxian pigs were best in autumn season and weaning litter weights were best in spring season.The survival rates of weaning in spring,summer and autumn were significantly higher than that in winter（P〈0.05）.The results showed that reproductive performance of Shenxian sows were better in the spring and autumn seasons.