期刊论文

Xiao, D.

中文

动物营养学报

1006-267X

2022

34

12

7735-7746

10.3969/j.issn.1006-267x.2022.12.025

2020JJ4364:湖南省自然科学基金项目 2020NK4247:湖南省科技厅项目 2019xny?js065:湖南农业大学与湖南今汉药业有限公司横向项目 0221019:湖南农业大学与湖南双峰县农业农村局合作项目

本校为第一机构

本试验旨在研究饲粮添加迷迭香提取物对大肠杆菌攻毒肉鸡生长性能、血清生化指标、抗氧化能力和肠道形态的影响。试验选取144羽7日龄的雌性黄羽肉鸡,随机分为3组,每组6个重复,每个重复8只鸡。对照组(CON组)和大肠杆菌攻毒组(EC组)饲喂基础饲粮,迷迭香提取物+大肠杆菌攻毒组(ECRE组)在基础饲粮中添加400 mg/kg迷迭香提取物。试验期为28 d(8 ~ 35日龄)。从29日龄开始每天给CON组灌喂2 mL无菌生理盐水,EC组和ECRE组灌喂2 mL大肠杆菌K88菌液(1.0×10~9 CFU/mL),连续灌喂7 d。结果显示:1)在29 ~ 35日龄,与CON组相比,EC组平均日采食量和平均日增重显著降低(P

This experiment was conducted to investigate the effects of dietary rosemary extract on growth per⁃ formance, serum biochemical indices, antioxidant capacity and intestinal morphology of broilers challenged with Escherichia coli. One hundred and forty⁃four 7⁃day⁃old female yellow⁃feathered broilers were randomly divided into 3 groups with 6 replicates per group and 8 broilers per replicate. Broilers in control group (CON group) and Escherichia coli challenge group (EC group) were fed a basal diet, and those in rosemary extract+ Escherichia...