湿粉料和干粉料对大约克夏母猪繁殖性能的影响

Effect of Humid Fodder and Dry Fodder on Reproductive Performance of Yorkshire Sow

试验对1 728头大约克夏母猪全年12个月生产数据进行分析,旨在探究湿粉料和干粉料对母猪繁殖性能的影响。试验组分为湿料组和干料组,湿料组(水料比为3∶1)饲喂湿粉料,干料组饲喂干粉料,每月每组72头母猪,每组随机分为3个重复,每个重复24头母猪。通过对母猪全年月均生产数据分析发现,湿料组母猪产活仔数、健仔数、供仔数、仔猪成活率及断奶7 d自然发情率均高于干料组;母猪淘汰率、死胎数、弱仔数和瘦仔数均低于干料组。其中,湿料组仔猪成活率为95.80%,干料组仔猪成活率为93.03%,两组仔猪成活率差异显著(P<0.05);湿料组产死胎数为0.32头,干料组产死胎数为0.59头,两组产死胎数差异极显著(P<0.01)。此试验结果表明,湿粉料饲喂母猪能够提高母猪的繁殖性能。

This experiment aims to analyze the annual production data of 1 728 Yorkshire sows and investigate the effect of humid fodder and dry fodder on sow reproductive performance within 12 months.The experiment was divided into two groups,the humid fodder group(the ratio of water and feed is 3∶1)and dry fodder group,the humid fodder group with humid fodder feeding Yorkshire sows,the dry fodder group with dry fodder feeding Yorkshire sows,and each group was randomly divided into 3 parallel groups,and each parallel consisted of 24 Yorkshire sows within a month.Through the analysis of monthly data of production within a year,we find that the sow natural estrus rate,live piglets,healthy piglets,weaned piglets and weaning piglets survival rate of humid fodder group were better than dry fodder group.The sow elimination rate,stillbirths and weak piglets of dry fodder group were better than humid fodder group.The survival piglets rates of humid fodder group and dry fodder group were 95.80%and 93.03%,respectively,comparing between the two groups of survival rate of weaned piglets is significant difference.The number of stillbirths in humid fodder group and dry fodder group were 0.32 and 0.59,respectively,comparing between the two groups of the number of stillbirths is very significant difference.The results indicate that feeding sows with humid fodder improves sow reproductive performance.