Zeng Xinfu, Li Qing, Yang Caimei, Yu Yang, Fu Zixian, Wang Huixian, Fan Xiaoyan, Yue Min, Xu Yinglei
Zhejiang Vegamax Biotechnology Co., Ltd., Anji 313306, China.
Key Laboratory of Applied Technology on Green-Eco-Health Animal Husbandry of Zhejiang Province, College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang A & F University, Hangzhou 311300, China.
Antibiotics (Basel). 2021 May 24;10(6):624. doi: 10.3390/antibiotics10060624.
We aimed to investigate the effects of -, -, and -based potential probiotics on the growth performance, intestinal morphology, immune responses, and caecal short chain fatty acids (SCFAs) and microbial structure in broiler chickens. Three treatment groups containing a total of 1200 one-day-old AA broilers were included: birds fed with a basal diet only (Con), birds fed with added 10 probiotics cfu/kg (ProL), and birds fed with added 10 probiotics cfu/kg (ProH). The dietary probiotics significantly improved the final and average body weights and serum immunoglobulins A, M, and Y. The probiotics also enhanced the ileal morphology and improved the caecal acetate, butyrate, and propionate contents. Furthermore, 16S rRNA sequencing revealed that dietary compound probiotics modulated the caecal microflora composition as follows: (1) all birds shared 2794 observed taxonomic units; (2) treatment groups were well separated in the PCA and PCoA analysis; (3) the relative abundance of , _UCG-014, , , [_coprostanoligenes_group], []_torques_group, and significantly varied between treatments. The compound probiotics improved the growth performance, serum immune responses, the ratio of ileal villus height to crypt depth, and major caecal SCFAs in broiler chickens. The dietary -, -, and -based probiotics improved overall broiler health and would benefit the poultry industry.
我们旨在研究基于-、-和-的潜在益生菌对肉鸡生长性能、肠道形态、免疫反应、盲肠短链脂肪酸（SCFAs）和微生物结构的影响。共纳入三个处理组，包含1200只1日龄的AA肉鸡：仅饲喂基础日粮的鸡（对照组）、添加10 cfu/kg益生菌的鸡（ProL组）和添加10 cfu/kg益生菌的鸡（ProH组）。日粮中的益生菌显著提高了最终体重和平均体重以及血清免疫球蛋白A、M和Y。益生菌还改善了回肠形态，提高了盲肠乙酸、丁酸和丙酸含量。此外，16S rRNA测序显示，日粮复合益生菌对盲肠微生物群落组成的调节如下：（1）所有鸡共有2794个观察到的分类单元；（2）在主成分分析（PCA）和主坐标分析（PCoA）中，处理组区分明显；（3）-、_UCG - 014、-、-、[_粪甾醇生成菌属]、[]_扭矩菌属和-的相对丰度在不同处理之间有显著差异。复合益生菌改善了肉鸡的生长性能、血清免疫反应、回肠绒毛高度与隐窝深度之比以及盲肠主要SCFAs。基于-、-和-的日粮益生菌改善了肉鸡的整体健康状况，将有利于家禽业。
