摘要： 选择二元杂交(杜/长)的(28)日龄断奶仔猪90头,平均断奶体重(8.99±1.60)kg,按体重和性别分成3个处理组,每处理3个重复。A组为对照组,饲喂玉米、豆粕基础日粮;B组为添加0.2%(m/m)NS复合乳酸菌制剂到基础日粮中;C组为添加0.2%(m/m)金霉素、0.025%(m/m)阿莫西林和0.012 5%(m/m)的支原净。试验分为3个阶段:试验共30 d,研究微生态制剂NS复合乳酸菌对断奶仔猪生产性能、血液生化指标和减少腹泻率的影响。结果表明,NS复合乳酸菌能显著提高断奶仔猪的生产性能,平均末重、平均增重、平均日增重分别比A组高9.12%,7.64%和7.67%,差异显著(P<0.05);料肉比降低9.70%,差异显著(P<0.05);有效降低断奶仔猪的腹泻率50%,差异极显著(P<0.01);B组的血糖(GLU)含量比A组高20%、超氧化物歧化酶(SOD)活性高10.9%,差异显著(P<0.05),对增强机体抗氧化功能,减少应激作用具有良好效果。

关键词: NS复合乳酸菌, 断奶仔猪, 生产性能, 血液生化指标, 腹泻率

Abstract: A total 90 of crossbred piglets(1/2 Large white× 1/2 Duroc,28-day-old,(8.99±1.60)kg BW) were divided into 3 groups by weight and gender,with 3 replicates in each group and 10 piglets in each replicate.The 3 groups were as follows:control group A(fed corn-soybean basal diet),NS-Lactobacillus group B(added 0.2%(m/m) NS-Lactobacillus complex in basal diet),antibiotic group C added 0.2%(m/m) aureomycin,0.025%(m/m) amoxicillin and 0.012 5%(m/m) tiamulin in basal diet.The experiments included 30 days.The productivity performance,blood biochemical indexes and the diarrhea rate were assayed.The results showed as follows:the average final weight,average weight gain and average daily gain in NS-Lactobacillus group were improved by 9.12%,7.64% and 7.67% compared with control group(P0.05);the feed conversion and diarrhea rate in NS-Lactobacillus group were decreased by 9.70%.and 50%(P0.01);In NS-Lactobacillus group,blood GLU level and SOD activity were improved by 20% and 10.9% compared with control group(P0.05),which indicates the anti-oxidation and stress reducing effect of NS-Lactobacillus.

Key words: NS-Lactobacillus complex, Piglets, Growth performance, Blood biochemical parameters, The diarrhea rate

中图分类号: 

• S828