绞股蓝对断奶仔猪生长性能、血液生化指标和免疫功能的影响

Effects of Gynostemma on Performance,Blood Biochemical Parameters and Immune Function in Weaning Piglets

试验旨在研究不同比例绞股蓝对断奶仔猪生长性能、血液生化指标和免疫功能的影响。选用60头28日龄杜长大断奶仔猪,随机分为对照组和试验A、B、C共4个处理组,每组3个重复,每重复5头猪。对照组饲喂基础饲粮,3个试验组在基础饲粮的基础上分别添加0.5%、1.0%、2.0%的绞股蓝,试验期28 d。结果表明:与对照组相比,饲粮中添加1.0%绞股蓝能显著提高断奶仔猪的平均日增重和日采食量(P<0.05),降低饲料增重比(P<0.05),同时还能显著降低血液尿素氮水平(P<0.05),提高血液中总蛋白、白蛋白和球蛋白的含量(P>0.05),降低血液中总胆固醇和甘油三酯含量(P>0.05),提高高密度脂蛋白含量(P>0.05),且对谷丙转氨酶和谷草转氨酶含量无显著影响(P>0.05),饲粮中添加0.5%和2.0%绞股蓝与对照组相比差异不显著(P>0.05)。此外,绞股蓝还能够提高血清IgA和IgG含量,增加外周血中CD4+/CD8+比值,从而增强断奶仔猪的体液免疫和细胞免疫功能。结果提示,当绞股蓝在饲料中的添加浓度为1.0%时,能显著改善断奶仔猪的生长性能、血液生化指标和免疫功能。

The study uas conclucted to study the effects of diet containing Gynostemma on the performance , blood biochemical parameters and immune function of weaning piglets. A total of 60 piglets at 28 days old were selected and assigned randomly into four groups with three replicates in each group and 5 pigs per replicate. The piglets in each group had statistically no significantly different body weight.The piglets in the control group were fed basaI diet.The piglets in group A, group B and group C were fed the basal diet supplemented with Gynostemma at 0.5%, 1.0% and 2.0%diet respectively. The trial period was 28 d. The results showed that compared with control group, when diets supplemented with 1. 0% Gynostemma, it significantly improved the piglets＇ average daily gain （ADG） and average daily feed intake （ADFI）（P〈0.05）, decreased the feed/gain （P〈0.05）, It also significantly reduced blood urea nitrogen （BISN）（P〈0.05）, increased total protein（TP）, albumin（ALB） and globulin（GLO）（P〉0.05）, reduce total cholesterol（CHO） and triglyceride （TG） levels （P〉0.05）, increased high density lipoprotein （HDL）（P〉0.05）, and the concentration of glutamic pyruvic transaminase （GPT） and glutamic oxaloacetic transaminase （GOT）had no significant difference among all groups （P〉O.05）, Compared with control group, when diets supplemented with 0.5% and 2.0% Gynostemma, the difference was not significant. In addition, Gynostemma could improve the content of IgA and IgG in blood serum, and raise the ratio of CD4＋/CD8＋ of peripheral blood, thus enhance the humoral immunity and the cellular immunity of weaning piglets. These results indicated that when the concentration of Gynostemma in basal diet was 1.0%, it could significantly improve the performance , blood biochemical 13arameters and immune function of weanint~ ni^lot~