复方中草药对母猪繁殖性能和仔猪生长性能的影响

Effects of compound Chinese herbal medicine on reproductive performance of sows and growth performance of piglets

试验旨在研究复方中草药对妊娠母猪繁殖性能及仔猪生长性能的影响。选择60头2~3胎次的妊娠母猪随机分为4组,每组3个重复,每个重复5头母猪。各组母猪饲喂添加0、0.1%、0.2%及0.4%复方中草药的试验饲粮。预试期7 d,正式试验期为产前14 d至产后21 d。结果显示,与对照组相比,中草药2组和中草药3组母猪的断奶背膘厚度增加(P<0.05),背膘损失、发情间隔降低(P<0.05);所有中草药组母猪的便秘率和产程降低(P<0.05)。与对照组相比,中草药2组和中草药3组母猪产健仔数增加(P<0.05),产死胎数减少(P<0.05);所有中草药制剂组母猪产弱仔数均降低(P<0.05)。与对照组相比,中草药2组和中草药3组仔猪初生窝重增加(P<0.05),仔猪的断奶个体重、平均日增重、断奶成活率升高(P<0.05);所有中草药组仔猪的腹泻率、发病率降低(P<0.05)。研究表明,母猪饲粮中添加中草药制剂可降低母猪便秘率,缩短发情间隔,提高了母猪产仔性能,改善仔猪的生长性能,降低仔猪的发病率,提高仔猪的成活率,中草药制剂的适宜添加水平为0.2%。

The experiment aimed to investigate the effects of a compound Chinese herbal medicine on the reproductive performance of sows and the growth performance of piglets.A total of 60 sows in their 2nd to 3rd parity were randomly divided into four groups,with three replicates per group and five sows per replicate.The sows were fed experimental diets supplemented with 0,0.1%,0.2%,and 0.4%of the compound Chinese herbal medicine.The preliminary trial period was seven days,and the formal experimental period lasted from 14 days before farrowing to 21 days after farrowing.The results showed that compared with the control group,the sows in the Chinese herbal medicine group 2 and Chinese herbal medicine group 3 had increased weaning backfat thickness(P<0.05),reduced backfat loss,and decreased estrus interval(P<0.05).The constipation rate and farrowing duration were reduced in all groups of sows fed with Chinese herbal medicine(P<0.05).Compared with the control group,the healthy litter number of sows in Chinese herbal medicine group 2 and Chinese herbal medicine group 3 was increased(P<0.05),the stillbirth number of sows was decreased(P<0.05),and the weak litter number of sows in all Chinese herbal medicine groups was decreased(P<0.05).Compared with the control group,the litter weight at birth of piglets in Chinese herbal medicine group 2 and Chinese herbal medicine group 3 was increased(P<0.05),the weaning weight,average daily gain and survival rate of piglets were increased(P<0.05),and the diarrhea rate and incidence of piglets in all Chinese herbal medicine groups were decreased(P<0.05).The results show that dietary supplementation of Chinese herbal preparations can reduce the constipation rate of sows,shorten the estrus interval,improve the litter performance of sows,improve the growth performance of piglets,reduce the morbidity of piglets and increase the survival rate of piglets.The appropriate supplemental level of Chinese herbal preparations is 0.2%.