Effects of Nitrate Addition on Rumen Fermentation, Bacterial Biodiversity and Abundance

Autor: Liping Zhao, Qingxiang Meng, Liping Ren, Wei Liu, Xinzhuang Zhang, Yunlong Huo, Zhenming Zhou
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Asian-Australasian Journal of Animal Sciences, Vol 28, Iss 10, Pp 1433-1441 (2015)
Druh dokumentu: article
ISSN: 1011-2367
1976-5517
DOI: 10.5713/ajas.15.0091
Popis: This study examined changes of rumen fermentation, ruminal bacteria biodiversity and abundance caused by nitrate addition with Ion Torrent sequencing and real-time polymerase chain reaction. Three rumen-fistulated steers were fed diets supplemented with 0%, 1%, and 2% nitrate (dry matter %) in succession. Nitrate supplementation linearly increased total volatile fatty acids and acetate concentration obviously (p = 0.02; p = 0.02; p0.05) and beta biodiversity of ruminal bacteria were not affected by nitrate. Nitrate increased typical efficient cellulolytic bacteria species (Ruminococcus flavefaciens, Ruminococcus ablus, and Fibrobacter succinogenes) (p
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