中草药添加剂对断奶仔猪肠道菌群与生长性能的影响

本试验旨在研究中草药添加剂对断奶仔猪肠道菌群和生产性能的影响。选择72头体重(8.13±0.67)kg的健康28日龄的三元断奶仔猪,遵照单因素原则分为4组,每组3个重复,对照组饲喂基础日粮,试验组分别在基础日粮中添加0.5%、1.0%、2.0%中草药添加剂,预试期为7 d,正式期25 d。结果表明:与对照组相比,试验组仔猪日增重、日采食量均显著增加(P<0.05),试验组耗料增重比分别显著降低26.01%、40.81%、30.49%(P<0.05);试验组仔猪大肠埃希氏菌数、腹泻率均显著低于对照组(P<0.05),B组最低;试验组仔猪乳酸杆菌和双歧杆菌数均显著增加(P<0.05);试验A、C组的各测定指标差异均不显著(P>0.05)。综合各项指标可知,中草药添加剂使断奶仔猪的生长性能显著提高,腹泻率降低,抑制肠道内大肠埃希氏菌繁殖,促进有益菌的增殖,且添加量为1%时效果最好。

Effects of Herbal Additives on Performance and Intestinal Microflora of Weaned Piglets

The objective of this study was to investigate the effects of herbal additives on performance and intestinal microflora of weaned piglets. A total of 72 piglets weaned at 28 days of age were randomly assigned into 4 groups with the basal diet group, the basal diet + 0.5% of the herbal additives, the basal diet + 1.0% of the herbal additives, the basal diet + 2.0% of the herbal additives. each group had 3 replicates with, pre-fed for 7 days, formal experiment for 25 days. The results showed that compared with the control group, the ADG, daily intake feed in experimental groups were significantly increased(P <0.05); feed conversion in the experimental groups were reduced by 26.01%, 40.81%, 30.49% respectively, the differences were significant(P <0.05); Escherichia coil and diarrhea in the experimental groups were significantly lower than that of the control group(P <0.05), the numbers of lactobacilli and bifid bacterium of experimental groups were significantly increased(P<0.05); integrated every indicator, herbal additives significantly improved the production performance of weaned piglets, reduced the rate of diarrhea, promote the proliferation of beneficial bacterium, it also had bad effect on the proliferation of Escherichia coil, and 1% herbal additives had the best effect.