乳酸菌和酵母菌复合制剂对肉仔鸡生长性能、屠宰性能和肠道健康的影响  

Effects of Lactobacillus and Saccharomycetes Compound Preparation on Growth Performance,Slaughter Performance and Intestinal Health of Broilers

作　　者：张彩凤[1,2] 王晓翠[2] 张海军[2] 齐广海[1,2] 武书庚[2] 王晶[2] 史兆国[1] 王晖 

机构地区：[1]甘肃农业大学动物科学技术学院,兰州730070 [2]中国农业科学院饲料研究所农业部饲料生物技术重点开放实验室生物饲料开发国家工程研究中心,北京100081 [3]厦门泓禾谷生物科技有限公司,厦门361000

出　　处：《动物营养学报》2017年第4期1248-1256,共9页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：基金项目:家禽产业技术体系北京市创新团队(CARS-PSTP)

摘　　要：本试验旨在研究乳酸菌和酵母菌复合制剂(LS)及其与维吉尼亚霉素(VM)联用对爱拔益加(AA)肉仔鸡生长性能、屠宰性能和肠道健康的影响。选取1日龄健康AA肉鸡公雏400只,据体重相近原则分为4组,每组5个重复,每重复20只鸡。对照组饲喂基础饲粮,试验组分别饲喂在基础饲粮中添加30 mg/kg VM(VM组)、15 mg/kg VM+1 000 mg/kg LS(VM+LS组)和1 000 mg/kg LS(LS组)的试验饲粮。试验期42 d。结果表明:1)VM、VM+LS和LS组的42日龄肉仔鸡体重显著高于对照组(P<0.05);VM+LS和LS组的22~42和1~42日龄肉仔鸡平均日增重和料重比显著优于对照组(P<0.05)。2)VM+LS组的42日龄胸肌率和全净膛率显著高于对照组(P<0.05)。3)与对照组相比,LS组21日龄空肠黏膜形态显著改善(P<0.05),十二指肠绒毛高度和绒毛高度/隐窝深度值显著提高(P<0.05);VM+LS和LS组42日龄十二指肠和空肠绒毛高度及绒毛高度/隐窝深度值显著提高(P<0.05)。4)VM+LS和LS组的42日龄盲肠大肠杆菌数量和大肠杆菌/乳酸杆菌值显著低于对照组(P<0.05)。综上,LS及其与VM联合使用均能改善肠道健康,促进肉仔鸡生长。This study was carried out to investigate the Lactobacillus and Saccharomycetes compound preparation（ LS） and its combination with virginiamycin（ VM） in diets on growth performance,slaughter performance and intestinal health of Arbor Acres（ AA） broilers.A total of 400 one-day-old AA male broilers were randomly allotted into 4 groups with 5 replicates each and 20 broilers in each replicate.Chickens in the control group were fed a basal diet,and the others in experimental groups were fed basal diets supplemented with30 mg/kg VM（ VMgroup）,15 mg/kg VM＋ 1 000 mg/kg LS（ VM＋ LS group） and 1 000 mg/kg LS（ LS group）,respectively.The whole experiment period was 42 days.The results showed as follows： 1） body weight of broilers at 42 days of age in VM,VM＋ LS and LS groups was significantly higher than that in the control group（ P〈0.05）.The ratio of feed to gain and average daily gain of broilers in 22 to 42 days of age and 1 to 42 days of age in VM＋ LS and LS groups were better than those in the control group（ P〈0.05）.2）Breast muscle yield and eviscerated yield of broilers at 42 days of age in VM＋ LS group were significantly increased compared with those in the control group（ P〈0.05）.3） Compared with the control group,jejunum mucosal morphology of broilers at 21 days of age in LS group was significantly improved（ P〈0.05）,and villus height and the ratio of villus height to crypt depth in duodenum of broilers at 21 days of age in the same group were significantly increased（ P〈0.05）.Meanwhile,villus height and the ratio of villus height to crypt depth in duodenum and jejunum of broilers at 42 days of age in VM＋ LS and LS group were significantly increased compared with the control group（ P〈0.05）.4） The amount of Escherichia coli and the ratio of Escherichia coli to Lactobacillus in caecum of broilers at 42 days of age in VM＋ LS and LS groups were lower than those in the control group（ P〈0.05）.In conclusion,LS alone or in combination with V

关 键 词：微生态制剂 维吉尼亚霉素 肉仔鸡 生长性能 肠道健康 

分 类 号：S816.7[农业科学—饲料科学]