【摘 要】
:
为研究凝结芽孢杆菌对肉鸡肠道形态和菌群数量的影响,选取1日龄817肉鸡120只,随机分为3组,对照组饲喂基础日粮,抗生素组添加50 mg·kg-1金霉素和5 mg·kg-1黄霉素,凝
【机 构】
:
宿州职业技术学院动物科学系,安徽海大饲料有限公司
【基金项目】
:
安徽省高校自然科学研究重点项目(KJ2017A654),安徽省高校人文社科重点项目(SK2019A0913),安徽省高校教师创新团队项目(2019cxtd040),宿州职业技术学院畜牧兽医专业带头人(2020yjzydtr18)
论文部分内容阅读
为研究凝结芽孢杆菌对肉鸡肠道形态和菌群数量的影响,选取1日龄817肉鸡120只,随机分为3组,对照组饲喂基础日粮,抗生素组添加50 mg·kg-1金霉素和5 mg·kg-1黄霉素,凝结芽孢杆菌组添加300 mg·kg-1凝结芽孢杆菌制剂,试验期49 d.结果显示:(1)与对照组相比,添加凝结芽孢杆菌可显著提高十二指肠和空肠内淀粉酶、胰蛋白酶活性,提高绒隐比,但对隐窝深度无显著影响,增加盲肠内乳酸杆菌、双歧杆菌数量,减少大肠杆菌、沙门氏菌数量;(2)与抗生素组相比,饲粮添加凝结
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