微生态制剂对断奶仔猪的临床应用效果研究

Study on the Clinical Application Effect of Microecological Preparation on Weaned Piglets

为了研究微生态制剂对断奶仔猪的临床应用效果,选择60头12 kg左右的断奶仔猪,随机分成2组(对照组和试验组),每组设3个重复,每个重复10头仔猪,进行为期35 d的生长饲养试验。试验组基础日粮中添加0.1%微生态制剂,对照组基础日粮中添加0.1%中药包,研究微生态制剂对仔猪生长性能、血液生化指标、粪便大肠杆菌和乳酸菌数量以及粪便理化指标的影响。结果表明:与对照组相比,试验组断奶仔猪的平均日采食量提高了5.17%,平均日增重提高了10.34%,料重比降低了4.94%(P<0.05);试验组尿素氮含量和白蛋白含量都显著低于对照组,而试验组血清碱性磷酸酶活性以及葡萄糖、球蛋白和总蛋白含量则显著高于对照组(P<0.05);试验组粪便乳酸菌数量显著或极显著高于对照组,而大肠杆菌数量和腹泻率均低于对照组(P<0.05);试验组粪便氮、磷排放量均低于对照组(P<0.05)。以上研究结果表明,微生态制剂的添加能提高断奶仔猪的生长性能,改善肠道微生物菌群平衡,降低腹泻率,增强仔猪免疫力,减少粪便氮、磷的排放。

In order to study the clinical application effect of microecological preparation on weaned piglets,60 weaned piglets(about 12 kg)were selected and randomly divided into two groups(control group and experimental group).Three repetitions were set in each group,there were 10 piglets in each repetition.The feeding experiment lasted 35 days.0.1%microecological preparation was supplemented in the basal diet in the experimental group,0.1%Chinese medicine package was supplemented in the basal diet in the control group.The effects of microecological preparation on the growth performance,blood biochemical indices,the number of fecal Escherichia coli,Lactobacillus plantarum and physical and chemical indices of feces were studied.The results showed as follows:compared with the control group,the average daily feed intake increased by 5.17%,average daily gain increased by 10.34%and feed conversion ratio decreased by 4.94%(P<0.05)in the experimental group.The urea nitrogen content,albumin content in the serum in the experimental group were significantly lower than those in the control group(P<0.05).The alkaline phosphatase activity,the contents of glucose,globulin and total protein in the serum in the experimental group were significantly higher than those in the control group(P<0.05).The number of L.plantarum in the experimental group was extremely significantly or significantly higher than that in the control group,the number of E.coli and diarrhea rate were lower than those in the control group(P<0.05).The emissions amount of nitrogen and phosphorus in the feces in the experimental group were lower than those in the control group(P<0.05).The above results showed that the addition of microecological preparation could increase the growth performance,improve the balance of intestinal microbial flora,reduce the diarrhea rate,enhance their immunity and reduce the emission amount of nitrogen and phosphorus in the feces of weaned piglets.