摘要
文章旨在分析乳酸菌对育肥猪生长性能的影响,试验将160头体重相近的育肥猪随机分为4组,每组4个重复,每个重复10头育肥猪,试验日粮分别为基础日粮(对照组)、基础日粮+1.0g/kg乳酸菌(试验I组)、基础日粮+1.5g/kg乳酸菌(试验Ⅱ组)和基础日粮+2.0g/kg乳酸菌(试验Ⅲ组),试验为期42d。结果表明,(1)生长性能:试验Ⅱ组末重和日均增重比试验I组、试验Ⅲ组高(P<0.05),与对照组存在极显著差异(P<0.01),试验Ⅱ组料重比比试验I组、试验Ⅲ组低(P<0.05),与对照组存在极显著差异(P<0.01);(2)肠道抗氧化能力:谷胱甘肽过氧化物酶活性(GSH-Px)、总抗氧化能力(T-AOC)、总超氧化物歧化酶能力(T-SOD)依次为试验Ⅱ组>试验I组、试验Ⅲ组>对照组(P<0.05),其中试验I组和试验Ⅲ组比较无差异(P>0.05);试验Ⅱ组丙二醛(MDA)比试验I组、试验Ⅲ组低(P<0.05),极显著低于对照组(P<0.01);(3)消化酶活性:试验Ⅱ组、试验Ⅲ组乳糖酶、蔗糖酶、麦芽糖酶、蛋白酶和脂肪酶活性高于试验I组(P<0.05),极显著高于对照组(P<0.01)。试验结果表明,在育肥猪基础日粮中添加乳酸菌可提高其生长性能,改善肠道抗氧化能力,增强肠道消化酶活性,本试验条件下以1.5g/kg添加量为最佳。
The purpose of the experimental study was to analyze the effects of lactic acid bacteria on the growth of fattening pigs.160 fattening pigs with similar body weight were selected and randomly divided into 4 treatments with 4 replicates per treatment and 10 fattening pigs per replicate.They were fed according to basic diet(control group),basic diet+1.0 g/kg lactic acid bacteria(trial group I),basic diet+1.5 g/kg lactic acid bacteria(trial groupⅡ)and basic diet+2.0 g/kg lactic acid bacteria(trial groupⅢ),respectively.The experiment period was 42d.The results showed as follows:(1)Growth performance:the final weight and average daily gain of test groupⅡwere higher than those of test groups I andⅢ(P<0.05),and the ratio of feed to gain of test groupⅡwas lower than that of test groups I andⅢ(P<0.01),and the difference was extremely significant compared with control group(P<0.01).(2)Intestinal antioxidant capacity:The glutathione peroxidase activity(GSH-Px),total antioxidant capacity(T-AOC)and total superoxide dismutase capacity(T-SOD)in test groupⅡ>test group I,test groupⅢ>control group(P<0.05),and there was no difference between test group I and test groupⅢ(P>0.05).The malondialdehyde(MDA)in test groupⅡwas significantly lower than that in test groups I andⅢ(P<0.05),and significantly lower than that in control group(P<0.01).(3)Digestive enzyme activities:The activities of lactase,sucrase,maltase,protease and lipase in test groupsⅡandⅢwere higher than those in test group I(P<0.05),and significantly higher than those in control group(P<0.01).The results showed that adding lactic acid bacteria to the basal diet of fattening pigs could improve their growth performance,improve intestinal antioxidant capacity and enhance intestinal digestive enzyme activity.Under the experimental conditions,1.5 g/kg supplementation was the best.
作者
张晓辉
刘凯
ZHANG Xiaohui;LIU Kai(Jilin Engineering Vocational College,Siping,Jilin Province 136001,China;Siping City Central People's Hospital,Siping,Jilin Province 136000,China)
出处
《中国饲料》
北大核心
2024年第16期13-16,共4页
China Feed
关键词
育肥猪
乳酸菌
生长性能
肠道抗氧化能力
消化酶活性
fattening pig
lactic acid bacteria
growth performance
intestinal antioxidant capacity
digestive enzyme activity
