Dietary Bacillus subtilis-and Clostridium butyricum-based probiotics supplement improves growth and meat quality, and alters microbiota in the excreta of broiler chickens
IF 1.2 4区 农林科学Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Qianqian Zhang, Sungbo Cho, Sumya Qianqian Kibria, Inho Kim
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引用次数: 0
Abstract
This study investigated the effects of the multi-probiotics consisting of Bacillus subtilis (B. subtilis) and Clostridium butyricum (C. butyricum) with varying doses (0, 0.05%, 0.1%, and 0.2%) on the growth performance, nutrient digestibility, meat quality, and cecal microbes of male broiler chickens. Seven hundred and twenty Ross 308, 1-d-old male broiler chickes were distributed into 4 dietary groups. Over 35 d of feeding, the average daily gain (ADG) was linearly elevated (P < 0.05) during d1-21 and 1 to 35 as probiotic doses increased.The average daily feed intake (ADFI) tended to be linearly (P = 0.059) increased from d 22 to 35, and was improved from d 1 to 35 (P = 0.031). Ascending doses of multi-probiotics tended to (P = 0.060) reduce Clostridium perfringens counts on d 35 and prompted (P = 0.001) the proliferation of Lactobacillus. Moreover, broilers fed a 0.1% dose of multi-probiotics had a higher pH and water-holding capacity (P < 0.05) in the breast meat. In conclusion, the 0.2% multi-probiotics could boost ADG by improving ADFI and modulating the cecal microbe. The dietary 0.1% multi-probiotics contributed to better meat quality.
期刊介绍:
Published since 1957, this quarterly journal contains new research on all aspects of animal agriculture and animal products, including breeding and genetics; cellular and molecular biology; growth and development; meat science; modelling animal systems; physiology and endocrinology; ruminant nutrition; non-ruminant nutrition; and welfare, behaviour, and management. It also publishes reviews, letters to the editor, abstracts of technical papers presented at the annual meeting of the Canadian Society of Animal Science, and occasionally conference proceedings.