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

作　　者：何晓芳 陈昊霖 顾艳楠 杨玲 韩琦 邓凯东[1] 朱红梅 周莉芬 HE Xiao-fang;CHEN Hao-lin;GU Yan-nan;YANG Ling;HAN Qi;DENG Kai-dong;ZHU Hong-mei;ZHOU Li-fen

机构地区：[1]金陵科技学院,江苏南京211169 [2]南京可莱威生物科技有限公司,江苏南京210000 [3]江西省抚州市畜牧良种场,江西抚州344106

出　　处：《饲料研究》2024年第22期41-45,共5页Feed Research

基　　金：江苏省自然科学基金(项目编号:BK20240222);江苏省产学研项目(项目编号:BY2022605);金陵科技学院高层次人才启动项目(项目编号:JIT-B-202036);金陵科技学院2020年校级科研孵育基金(项目编号:JIT-FYXM-2020);江苏省大学生创新创业项目(项目编号:202413576026Z)。

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。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 

分 类 号：S831[农业科学—畜牧学]