Combined Use ofBacillus subtilis yb-114,246 andBacillus licheniformis yb-214,245 Improves Body Growth Performance of Chinese Huainan Partridge Shank Chickens by Enhancing Intestinal Digestive Profiles

文献类型： 外文期刊

第一作者： Yang, Jiajun

作者： Yang, Jiajun;Wei, Zhanyong;Yang, Jiajun;Wu, Dong;Huang, Kehe;Wang, Jing;Liu, Zongliang;Yu, Pengcheng;Chen, Fu

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关键词： Bacillussp; Digestion; Growth performance; Bacterial flora; Chick

期刊名称：PROBIOTICS AND ANTIMICROBIAL PROTEINS （ 影响因子：4.609； 五年影响因子：4.585 ）

ISSN： 1867-1306

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收录情况： SCI

摘要： The aim of our study was to unveil the promoting function of compoundBacillus sp.in improving chicken digestion-induced higher body growth performance. Strains ofBacillus subtilisandB. licheniformiswere jointly supplemented to the chick diet. Digestive enzyme activities in the digesta improved, development of intestinal villus enhanced, and duodenum and ileum villous height increased, while their crypt depth declined, and the cecum's bacterial composition optimized after 56 days of supplementation. Bacterial composition at the phylum level changed significantly, moreFirmicutes, Proteobacteria,Epsilonbacteraeota, andTenericutes, but fewer Bacteroidetes were detected in cecum digesta in the compoundBacillussupplemented group. Bacterial composition diversity, which improves the abundances of metabolic genes through KEGG pathway classification, became more abundant. Results indicated that theRuminococcaceaeUCG-005, unclassifiedRuminococcaceae, and unclassifiedLachnospiraceaespecies are actively correlated with body growth, promoting higher final body weight. In conclusion, owing to digestive enzyme secretion, the development of intestinal villus was stimulated and gastrointestinal bacterial composition optimized, and two combinedBacillussp. improved chicken body growth. Our findings show the promoting action ofBacillus subtilisandB. licheniformison digestion, which can be an alternative to antibiotics.

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