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

发布时间：2018-07-06 09:08

本文选题：微生态制剂 + 维吉尼亚霉素　；参考：《动物营养学报》2017年04期

【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(P0.05);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(P0.05)。2)VM+LS组的42日龄胸肌率和全净膛率显著高于对照组(P0.05)。3)与对照组相比,LS组21日龄空肠黏膜形态显著改善(P0.05),十二指肠绒毛高度和绒毛高度/隐窝深度值显著提高(P0.05);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(P0.05)。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(P0.05)。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。
[Abstract]:The purpose of this study was to study the effects of lactic acid bacteria and yeast compound preparation (LS) and its combination with Virginia mycin (VM) on the growth performance, slaughter performance and intestinal health of Ebariga (AA) broilers. Four hundred 1-day-old healthy AA broilers were divided into 4 groups according to the principle of similar body weight, 5 replicates in each group and 20 in each replica. The control group was fed with basic diet, the experimental group was fed with 30 mg/kg VM (VM group), 15 mg/kg VM 1 000 mg/kg LS (VM-LS group) and 1 000 mg/kg LS (LS group) respectively. The experimental period was 42 days. The results showed that the weight of 42-day-old broilers in VMVLS and LS group was significantly higher than that in control group (P0.05). The average daily gain and feed weight ratio of VM-LS group and LS group were significantly higher than those of control group (P0.05). The average daily gain and feed weight ratio of VM-LS group were significantly higher than those of control group (P0.05). Compared with the control group (P0.05), the mucosal morphology of 21 days old jejunum in the LS group was significantly improved (P0.05), the height of duodenal villi and the villi height / depth of crypt were significantly increased (P0.05). The duodenal and jejunal villi of the LS and LS groups were significantly higher than those of the control group (P0.05). The number of Escherichia coli and Escherichia coli / Lactobacillus in VM-LS and LS groups were significantly lower than those in control group (P0.05). The combination of LS and VM can improve the intestinal health and promote the growth of broilers.
【作者单位】：甘肃农业大学动物科学技术学院;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;厦门泓禾谷生物科技有限公司;
【基金】：基金项目:家禽产业技术体系北京市创新团队(CARS-PSTP)
【分类号】：S831.5

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