山药对断奶仔猪血液生化指标的影响

Effects of Yam on Blood Biochemical Indicators of Weaned Piglets

试验研究了日粮中添加不同剂量的山药对断奶仔猪血液生化指标的影响。选择28日龄断奶仔猪132头,随机分为对照组和试验Ⅰ组、试验Ⅱ组、试验Ⅲ组,共4个处理组,每个处理组4个重复,每个重复8头猪,公母各半,各处理间试验仔猪体重经统计检验差异不显著(P>0.05)。对照组饲喂基础饲粮,3个试验组饲粮在基础饲粮基础上分别添加山药,添加量分别为0.5%、1.0%、2.0%,试验期为28d。结果表明,随着山药添加量的增加,血清中总蛋白、白蛋白、球蛋白含量不断提高,但差异不显著;日粮中添加1.0%、2.0%的山药能够显著提高GSH-Px活性,并在一定程度上提高SOD活性,降低MDA含量,还能够显著降低尿素氮含量;试验Ⅱ组、试验Ⅲ组之间差异不显著。综合来看,以添加1.0%山药效果最好,将山药作为一种中草药饲料添加剂饲喂家畜具有广阔的开发前景。

The aim of this study was to investigate effects of diets containing yam on blood biochemical indicators of weaned piglets.A total of 132 piglets at 28 days old were selected and assigned randomly into four groups,four replicates in each group and eight pigs in each replicate （half male and half female）.The piglets in each group had statistically nonsignificantly different body weight （P〉0.05）.The piglets in control group were fed basal diet.The piglets in group I,group II and group III were fed the basal diet supplemented yam at 5,10 and 20 g/kg·Diet,respectively.The trial period was 28 d.The results showed that serum levels of total protein,albumin and globulin rose with the increasing level of yam in diet,but they were not significantly different between the groups.The diets supplemented yam at 10 and 20 g/kg·Diet enhanced the GSH-Px activity significantly,enhanced SOD activity to some extent,reduced the MDA concentration and significantly decreased urea nitrogen concentration.No significant difference was found between the group II and group III.On the whole,the diets supplemented yam at 10 g/kg·Diet had the best effects on the weaned piglets.It has a broad development prospect to use yam as a Chinese herbal feed additive.