饲粮中添加酸化剂对肉鸡生长性能、消化器官指数、消化道pH值和盲肠微生物区系的影响
Effects of acidifier addition in diets on growth performance,digestive organ index,pH value of digestive tract,and cecal microflora of broilers
何晓芳 1陈昊霖 2顾艳楠 2杨玲 2韩琦 2邓凯东 2朱红梅 3周莉芬4
作者信息
- 1. 金陵科技学院,江苏 南京 211169;南京可莱威生物科技有限公司,江苏 南京 210000
- 2. 金陵科技学院,江苏 南京 211169
- 3. 南京可莱威生物科技有限公司,江苏 南京 210000
- 4. 江西省抚州市畜牧良种场,江西 抚州 344106
- 折叠
摘要
试验旨在研究饲粮中添加酸化剂对肉鸡生长性能、消化器官指数、消化道pH值和盲肠微生物区系的影响.试验选取1日龄AA肉鸡96只,随机分为2组,每组6个重复,每个重复8只鸡.对照组饲喂基础饲粮,酸化剂组在基础饲粮中添加330 g/t可肥酸(含肠溶苯甲酸).试验期42 d.结果显示,与对照组相比,酸化剂组肉鸡的存活率显著增加(P<0.05).与对照组相比,酸化剂组的厚壁菌门(Firmicutes)、拟杆菌门(Bacteroidota)和古菌门(Euryarchaeota)相对丰度明显增加,疣微菌门(Verrucomicrobiota)、脱硫杆菌门(Desulfobacterota)和弓形菌门(Campilobacterota)相对丰度明显降低.酸化剂组中肠杆菌科(Enterobacteriaceae)和肠球菌科(Enterococcaceae)相对丰度明显增加,理研菌科(Rikenellaceae)、巴恩斯氏菌科(Barnesiellaceae)、坦纳菌科(Tannerellaceae)和萨特菌科(Sutterellaceae)相对丰度明显降低.研究表明,饲粮中添加酸化剂可以改变42日龄肉鸡盲肠微生物物种丰度,调节盲肠微生物的区系.
Abstract
The experiment was aimed to evaluate the effects of acidifier addition in diets on growth performance,digestive organ index,pH value of digestive tract,and cecal microflora of broilers.A total of 96 one-day-old AA broilers were randomly divided into two groups,with six replicates per group and eight broilers per replicate.The control group was fed with basal diet,while the acidifier group was added 330 g/t conic acid(containing enteric benzoic acid)to the basal diet.The experiment lasted for 42 days.The results showed that compared with the control group,the survival rate of broilers in the acidifier group significantly increased(P<0.05).Compared with the control group,the relative abundance of Firmicutes,Bacteroidota and Euryarchaeota increased significantly in the acidifier group.The relative abundance of Verrucomicrobiota,Desulfobacterota and Campilobacterota had decreased significantly.The abundance of Enterobacteriaceae and Enterococcaceae in the acidifier group increased significantly.The abundance of Rikenellaceae,Barnesiellaceae,Tannerellaceae and Sutterellaceae decreased significantly.The study indicates that the addition of acidifier to the diet changes the species abundance of cecal microorganisms and regulates the flora of cecal microflora in broilers.
关键词
肉鸡/酸化剂/生长性能/消化道pH值/盲肠微生物区系Key words
broilers/acidifier/growth performance/pH value of digestive tract/cecal microflora引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据