丁酸梭菌对庄河大骨鸡生长性能、屠宰性能和免疫功能的影响
Effects of Clostridium butyricum on growth performance,slaughter performance and immune function of Zhuanghe Dagu chickens
吴欣苡 1马瑶瑶 1赵天奇 1杨章平 1孙雨佳1
作者信息
- 1. 扬州大学农业科技发展研究院(国际联合实验室),江苏扬州 225009;扬州大学动物科学与技术学院,江苏扬州 225009
- 折叠
摘要
为探究丁酸梭菌对庄河大骨鸡的生长性能、屠宰性能和免疫功能的影响,试验选取健康的1日龄庄河大骨鸡,公母各半共450只,随机分成3组,每组6个重复,每个重复25只.对照组饲喂基础日粮,试验Ⅰ组饲喂基础日粮+1.5×107 CFU/kg(500 mg/kg)的丁酸梭菌,试验Ⅱ组饲喂基础日粮+3×107 CFU/kg(1000 mg/kg)的丁酸梭菌,试验期为21 d.结果表明:与对照组相比,各试验组的平均日采食量和料重比均有所降低(P＞0.05),试验Ⅱ组的平均日增重和21日龄体重分别极显著增加11.5％和18.5％(P＜0.01);与对照组相比,试验组的胸肌率分别显著提高7.7％和9.5％(P＜0.05);与对照组相比,试验Ⅱ组庄河大骨鸡的胸腺指数和IgG含量极显著提高17.2％和78.1％(P＜0.01),脾脏指数和法氏囊指数分别显著提高11.4％和50.0％(P＜0.05).综上,日粮中添加丁酸梭菌可以改善庄河大骨鸡的生长性能、屠宰性能和免疫功能.
Abstract
To explore the effects of Clostridium butyricum on growth performance,slaughter performance and immune function of Zhuanghe Dagu chickens.A total of 450 one-day-old Zhuanghe Dagu chickens,half male and half female,were randomly divided into 3 groups with 6 replicates per group and 25 chickens per replicate.The control group was fed a basal diet,the experimental group Ⅰ was fed a basal diet+1.5x107 CFU/kg(500 mg/kg)Clostridium butyricum,and the experimental group Ⅱ was fed a basal diet+3x107 CFU/kg(1000 mg/kg).The experiment lasted for 21 days.The results showed as follows:compared with the control group,the average daily feed intake and the ratio of feed to gain of experimental groups were decreased(P＞0.05),and the average daily gain of group Ⅱ and body weight of age 21 were highly significantly increased by 11.5％and 18.5％,respectively(P＜0.01);Pectoral rates in the test group were significantly increased by 7.7％and 9.5％,respectively,compared with the control group(P＜0.05);Compared with the control group,the thymus index and IgG content of Zhuanghe Dagu chickens in test group Ⅱ were significantly higher 17.2％and 78.1％(P＜0.01),and the spleen index and bursa index were significantly increased by 11.4％and 50.0％,respectively(P＜0.05).Therefore,dietary addition of Clostridium butyricum could improve growth performance,slaughter performance and immune function of Zhuanghe Dagu chickens.
关键词
庄河大骨鸡/丁酸梭菌/生长性能/屠宰性能/免疫功能Key words
Zhuanghe Dagu chickens/Clostridium butyricum/growth performance/slaughter performance/immune organ index引用本文复制引用
基金项目
国家自然科学基金青年科学基金(31902147)
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据