Effects of Bacillus subtilis natto and Different Components in Culture on Rumen Fermentation and Rumen Functional Bacteria In Vitro

Current Microbiology
P SunHong Du

Abstract

This study was to investigate the effects of live or autoclaved Bacillus subtilis natto, their fermented products and media on rumen fermentation and rumen functional bacteria in vitro. Rumen fluid from three multiparous lactating Holstein cows was combined and transferred into serum bottles after diluted. Fifteen serum bottles were divided into five treatments, which were designed as following: CTR (the fermentation of 0.5 g TMR and ruminal fluids from dairy cows), LBS (CTR plus a minimum of 10(11) cfu live Bacillus subtilis natto), ABS (CTR plus a minimum of 10(11) cfu autoclaved Bacillus subtilis natto), BSC (CTR plus 1 ml Bacillus subtilis natto fermentation products without bacteria), and BSM (CTR plus 1 ml liquid fermentation medium). When separated from the culture, live Bacillus subtilis natto individually increased the concentrations of ammonia-N (P < 0.01), MCP production (P < 0.01), and tended to elevate total VFA (P = 0.07), but decreased the ratio of acetate and propionate (P < 0.01). Autoclaved Bacillus subtilis natto has the similar function with the live bacteria except for the ratio of acetate and propionate. Except B. fibrisolvens, live or autoclaved Bacillus subtilis natto did not influence or decreased the 1...Continue Reading

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Citations

Jun 21, 2016·Journal of Agricultural and Food Chemistry·Pengpeng WangJiaqi Wang
Sep 6, 2018·Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]·Martín FragaPablo Zunino
Jul 22, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Shizheng ZhouYan Wang
Jul 8, 2019·Journal of Dairy Science·T T YoheK M Daniels
Feb 11, 2021·Critical Reviews in Biotechnology·Sandra R B Ruiz SellaCarlos Ricardo Soccol
Apr 1, 2021·Journal of Applied Microbiology·Chen ZhangLijuan Chen
Jun 3, 2021·Animals : an Open Access Journal From MDPI·Meinan ChangPeng Sun

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