枯草芽孢杆菌对肉鸡生产性能、屠宰性能及经济效益的影响  

The Bacillus subtilis on production performance,slaughter performance and economic benefits of broilers

作　　者：马萌[1] 杨利博 MA Meng;YANG Libo(Xinxiang Vocational and Technical College,Xinxiang,Henan Province 453006,China;School of Landscape and Ecological Engineering,Hebei University of Engineering,Handan,Hebei Province 056009,China)

机构地区：[1]新乡职业技术学院,河南新乡453006 [2]河北工程大学园林与生态工程学院,河北邯郸056009

出　　处：《中国饲料》2024年第20期43-46,共4页China Feed

基　　金：河北工程大学教育教学研究项目“农学专业背景下以工程特色为导向的微生物专业课程改革研究”。

摘　　要：文章旨在通过试验对照的方式研究枯草芽孢杆菌对肉鸡生产、屠宰及经济效益的影响。试验将600只体重相近、健康状态优良的1日龄肉鸡随机分成2组,每组3个重复,每个重复100只。对照组中选用基础日粮正常饲养,试验组在基础日粮中添加500 mg/kg的枯草芽孢杆菌,搅拌均匀后正常饲喂肉鸡,试验为期42 d。试验结果:试验组在添加枯草芽孢杆菌后,1~14日龄时,试验组肉鸡平均日增重显著增加(P<0.05),料重比显著降低(P<0.05);15~28日龄时,试验组平均日采食量和日增重显著增加(P<0.05),料重比显著降低(P<0.01);29~42日龄时,两组肉鸡平均日采食量无显著差异(P>0.05),但日增重显著增加(P<0.05),料重比显著降低(P<0.01)。试验组较对照组屠宰率、半净膛率、胸肌率和腿肌率明显提高,腹肌率提高幅度最大;在此基础上,试验组比对照组每只肉鸡可增收0.74元,效益同比提高19.30%。综上所述,500 mg/kg枯草芽孢杆菌对肉鸡的生长性能最佳,经济效益最高。The controlled experiment was designed to study the effects of Bacillus subtilis on the production,slaughtering and economic benefits of broilers by means of experimental control.A total of 6001-day-old broilers with similar weight and good health status were randomly divided into 2 groups,with 300 broilers in each group,and 3 replicates were designed in each group,with 100 broilers in each replicate.In the control group,the basal diet was normally fed,and the experimental group added Bacillus subtilis to the basal diet at a dose of 500 mg/kg,and the broilers were fed normally after stirring evenly,and the experimental period was designed to be 42 days.Test results:The experimental group was The average daily gain of broilers in the experimental group increased significantly(P<0.05)and the feed-to-weight ratio decreased significantly(P<0.05),the average daily feed intake and daily gain in the experimental group increased significantly(P<0.05)and the feed-to-weight ratio decreased significantly(P<0.01)at the age of 29-42 days,The average daily gain of broilers increased significantly(P<0.05)and the feed-to-weight ratio decreased significantly(P<0.01)at the age of 29-42 days.Compared with the control group,the slaughter rate,semi-clean chamber rate,pectoral muscle rate and leg muscle rate were significantly increased in the experimental group,and the abdominal muscle rate was the largest.The experimental group could increase the income of each broiler by 0.74 yuan compared with the control group,and the benefit increased by 19.30%year-on-year.In summary,500 mg/kg Bacillus subtilis had the best growth performance and the highest economic benefits for broilers.

关 键 词：枯草芽孢杆菌 肉鸡 生长性能 屠宰性能 经济效益 

分 类 号：S816.7[农业科学—饲料科学]