中国牛业科学2026，Vol.52Issue(4)：12-18,7.DOI:10.26951/j.cnki.ccs.2026.04.003
枯草芽孢杆菌与黄芪粗提物对夏南牛生长和粪便微生物的影响
Effects of Bacillus subtilis and Astragalus membranaceus Crude Extract on the Growth Performance and Fecal Microbiota in Xianan Cattle
摘要
Abstract
This experiment was conducted to investigate the effects of dietary supplementation with Bacil-lus subtilis and Astragalus membranaceus crude extract on the growth performance,serum biochemical in-dices,and gut microbiota of Xianan cattle.Sixty healthy male Xianan cattle with similar body weight were randomly divided into a control group and an experimental group,each with 3 replicates of 10 cattle.The control group was fed a basal diet,while the experimental group was fed the basal diet supplemented with 10 g/head Bacillus subtilis and 20 g/head Astragalus membranaceus crude extract.The trial consisted of a 7-day preliminary feeding period and a 120-day formal feeding period.The results showed that,compared with the control group,the experimental group exhibited significantly increased final body weight(P 0.05),average daily gain(P≤0.001),and average daily feed intake(P ≤0.01),along with a significantly decreased feed-to-gain ratio(P≤ 0.05).Serum concentrations of malondialdehyde and interleukin-6 in the experimental group were extremely significantly decreased(P≤0.01),while total protein,albumin,β-hydroxybutyrate,blood urea nitrogen,triglycerides,superoxide dismutase,glutathione peroxidase,total an-tioxidant capacity,alanine aminotransferase,and interleukin-2 showed no significant differences between the two groups.Gut microbiota analysis revealed that,compared with the control group,the relative abun-dances of Firmicutes_D and Actinobacteria in the experimental group showed an upward trend,whereas those of Bacteroidetes and Firmicutes_A displayed a downward trend;the relative abundance of Spirochae-tes significantly decreased(P≤0.05),and that of FirmicutesC significantly increased(P≤0.05).LEfSe analysis further identified a significant enrichment of beneficial bacteria such as Peptostreptococcaceae and Terrisporobacter in the experimental group.In conclusion,dietary supplementation with Bacillus subtilis and Astragalus membranaceus crude extract significantly improves the growth performance,enhances the antioxidant capacity,and optimizes the gut microbiota structure of Xianan cattle.关键词
夏南牛/枯草芽孢杆菌/黄芪粗提物/生长性能/血清生化指标Key words
Xianan cattle/Bacillus subtilis/Astragalus membranaceus crude extract/growth performance/serum biochemical indices分类
农业科技引用本文复制引用
卢壮壮,施传信,梅君生,张科举,吕志远,董改新,高攀,祁兴山,祁兴磊,张春梅..枯草芽孢杆菌与黄芪粗提物对夏南牛生长和粪便微生物的影响[J].中国牛业科学,2026,52(4):12-18,7.基金项目
河南省县(市)创新引导计划项目"菌渣饲料化关键技术研究与产业化" （市）
