Anaerobic fermentation of soybean meal by Bacillus subtilis ED-3-7 and its effect on the intestinal microbial community of chicken

IF 3.8 1区农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Poultry Science Pub Date : 2024-11-27 DOI:10.1016/j.psj.2024.104564

Wei Liu , Wei Wang , Jia Li , Hongya Li , Tongguo Gao , Baocheng Zhu

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引用次数: 0

Abstract

A strain named ED-3-7 with a high protease-producing ability was screened in a previous study. This strain can be used for the anaerobic fermentation of soybean meal (SBM) to degrade macromolecular antigen proteins and antinutritional factors. We here evaluated the nutritional quality of the anaerobic fermented SBM and its effects on the chicken intestinal microbial community. Crude protein and acid-soluble protein contents increased by 11.68% and 342.61%, glycinin and β-conglycinin decreased by 82.04% and 88.42%, urease content decreased by 90.10%, and the trypsin inhibitor content was lower than the range specified in the detection kit. After being fed with the fermented SBM, the average daily gain, nutrient digestibility of the chickens increased, and their intestinal bacterial community exhibited significant changes. The richness and diversity of bacterial species decreased, and Lactobacillus became the dominant genus, which was conducive to the health of chicken intestines. The experimental results revealed that ED-3-7 anaerobic fermentation improved the nutritional quality of SBM and had beneficial effects on chicken intestines. Thus, the strain could be used for large-scale industrial production.

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枯草芽孢杆菌 ED-3-7 对豆粕的厌氧发酵及其对鸡肠道微生物群落的影响

之前的一项研究筛选出了一株名为 ED-3-7 的菌株，它具有很高的蛋白酶生产能力。该菌株可用于豆粕（SBM）的厌氧发酵，以降解大分子抗原蛋白和抗营养因子。我们在此评估了厌氧发酵豆粕的营养质量及其对鸡肠道微生物群落的影响。粗蛋白和酸溶性蛋白含量分别提高了 11.68% 和 342.61%，甘氨素和β-共甘氨素分别降低了 82.04% 和 88.42%，脲酶含量降低了 90.10%，胰蛋白酶抑制剂含量低于检测试剂盒规定的范围。饲喂发酵 SBM 后，鸡的平均日增重和营养消化率均有所提高，肠道细菌群落也发生了显著变化。细菌种类的丰富度和多样性下降，乳酸杆菌成为优势菌属，有利于鸡肠道健康。实验结果表明，ED-3-7 厌氧发酵能改善 SBM 的营养质量，对鸡肠道有益。因此，该菌株可用于大规模工业生产。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Poultry Science 农林科学-奶制品与动物科学

CiteScore

7.60

自引率

15.90%

发文量

审稿时长

94 days

期刊介绍： First self-published in 1921, Poultry Science is an internationally renowned monthly journal, known as the authoritative source for a broad range of poultry information and high-caliber research. The journal plays a pivotal role in the dissemination of preeminent poultry-related knowledge across all disciplines. As of January 2020, Poultry Science will become an Open Access journal with no subscription charges, meaning authors who publish here can make their research immediately, permanently, and freely accessible worldwide while retaining copyright to their work. Papers submitted for publication after October 1, 2019 will be published as Open Access papers. An international journal, Poultry Science publishes original papers, research notes, symposium papers, and reviews of basic science as applied to poultry. This authoritative source of poultry information is consistently ranked by ISI Impact Factor as one of the top 10 agriculture, dairy and animal science journals to deliver high-caliber research. Currently it is the highest-ranked (by Impact Factor and Eigenfactor) journal dedicated to publishing poultry research. Subject areas include breeding, genetics, education, production, management, environment, health, behavior, welfare, immunology, molecular biology, metabolism, nutrition, physiology, reproduction, processing, and products.