乳果糖和凝结芽孢杆菌合生素对断奶仔猪生长性能、养分表观消化率和血液指标的影响  

Effects of Synbiotic Containing Lactulose and Bacillus coagulans on Growth Performance,Nutrient Apparent Digestibilities and Blood Indexes of Weaned Piglets

作　　者：赵祖艳 杨运南 刘日亮 张云龙 胡浩 郑卫江[1] 姚文[1] ZHAO Zuyan;YANG Yunnan;LIU Riliang;ZHANG Yunlong;HU Hao;ZHENG Weijiang;YAO Wen(Jiangsu Key Laboratory of Gastrointestinal Nutrition and Health,Laboratory of Gastrointestinal Microbiology,Nanjing Agricultural University,Nanjing 210095,China;Jiangsu Yuanshan Biological Technology Co.,Ltd.,Yancheng 224001,China)

机构地区：[1]南京农业大学消化道微生物实验室,江苏省消化道营养与动物健康重点实验室,南京210095 [2]江苏远山生物技术有限公司,盐城224001

出　　处：《动物营养学报》2021年第7期3735-3744,共10页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家重点研发计划(2017YFE0114400);江苏现代农业(生猪)产业技术体系营养调控岗位项目(JATS[2020]412)。

摘　　要：本试验旨在研究乳果糖和凝结芽孢杆菌合生素对断奶仔猪生长性能、养分表观消化率和血液指标的影响。选取24头27~28日龄健康“杜×长×大”三元杂交断奶阉公猪,初始体重为(9.09±0.12)kg,随机分为对照组(n=12)、试验Ⅰ组(n=6)和试验Ⅱ组(n=6)。对照组饲喂基础饲粮(不含抗生素),试验Ⅰ组饲喂基础饲粮+75 mg/kg的金霉素,试验Ⅱ组饲喂基础饲粮+乳果糖和凝结芽孢杆菌合生素(10 g/kg的乳果糖和2×109 CFU/kg的凝结芽孢杆菌)。试验期29 d。结果表明:1)第1天、第15天和第29天,3组之间体重均无显著差异(P>0.05)。第1~2周,3组之间平均日增重(ADG)和平均日采食量(ADFI)无显著差异(P>0.05);试验Ⅱ组的料重比(F/G)显著低于对照组(P<0.05),且与试验Ⅰ组无显著差异(P>0.05)。第3~4周和第1~4周,3组之间ADG、ADFI和F/G均无显著差异(P>0.05)。2)第3~4周,试验Ⅰ组和试验Ⅱ组的腹泻率显著低于对照组(P<0.05),且试验Ⅰ组和试验Ⅱ组之间无显著差异(P>0.05);第1~2周和第1~4周,3组之间腹泻率无显著差异(P>0.05)。3)试验Ⅰ组和试验Ⅱ组的总能和粗脂肪的表观消化率高于对照组(P<0.05),且试验Ⅰ组和试验Ⅱ组之间无显著差异(P>0.05);试验Ⅰ组的粗蛋白质表观消化率高于对照组(P<0.05),但试验Ⅱ组与其他2组无显著差异(P>0.05)。4)3组之间血液常规指标均无显著差异(P>0.05)。试验Ⅰ组和试验Ⅱ组的血清总胆红素含量显著低于对照组(P<0.05),且试验Ⅰ组和试验Ⅱ组之间无显著差异(P>0.05)。综上所述,在无抗饲粮中添加乳果糖和凝结芽孢杆菌合生素可降低断奶仔猪腹泻率,提高总能和粗脂肪表观消化率,降低血清总胆红素含量,并降低F/G。This experiment was conducted to investigate the effects of synbiotic containing lactulose and Bacillus coagulans on growth performance,nutrient apparent digestibilities and blood indexes of weaned piglets.Twenty-four healthy 27 to 28-day-old crossbred(Duroc×Landrace×Yorkshire)weaned piglets with initial body weight of(9.09±0.12)kg were randomly divided into 3 groups:control group(n = 12),test groupⅠ (n =6)and test groupⅡ (n = 6). Piglets in the control group were fed a basal diet(antibiotic-free),piglets in the test groupⅠwere fed the basal diet+75 mg/kg chlortetracycline,and others in the test groupⅡwere fed the basal diet+synbiotic containing lactulose and Bacillus coagulans(10 g/kg lactulose+2×109 CFU/kg Bacillus coagulans). The experiment lasted for 29 days. The results showed as follows:1)on day 1,15 and 29,there was no significant difference in the body weight among 3 groups(P>0.05). During weeks 1 to 2,there were no significant differences in the average daily gain(ADG)and average daily feed intake(ADFI)among 3 groups(P>0.05);the feed to gain ratio(F/G)of test groupⅡwas significantly lower than that of the control group(P<0.05),and had no significant difference with test groupⅠ (P>0.05). During weeks 3 to 4 and weeks 1 to 4,there were no significant differences in the ADG,ADFI and F/G among 3 groups(P>0.05). 2)During weeks 3 to 4,the diarrhea rate of test groupⅠand test groupⅡwas significantly lower than that of the control group(P<0.05),and there was no difference between the test groupⅠand the test groupⅡ (P>0.05);during weeks 1 to 2 and weeks 1 to 4,there was no difference in diarrhea rate among 3 groups(P>0.05). 3)The apparent digestibilities of gross energy and ether extract of test groupⅠand test groupⅡwere significantly higher than those of the control group(P < 0.05),and there was no significant difference between test groupⅠand test groupⅡ (P>0.05);the crude protein apparent digestibility of test groupⅠwas significantly higher than that of the control group(P<0.0

关 键 词：乳果糖 凝结芽孢杆菌 合生素 断奶仔猪 养分表观消化率 血液指标 

分 类 号：S828[农业科学—畜牧学]