China Animal Husbandry and Veterinary Medicine ›› 2020, Vol. 47 ›› Issue (8): 2464-2471.doi: 10.16431/j.cnki.1671-7236.2020.08.014

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Research of Enrichmen Condition of Methanomassiliicoccales in Buffalo Rumen

TANG Zhenhua1, LI Kaikun2, GUO Yanxia1, LI Mengwei1, XIE Fang1, PENG Kaiping1, LIANG Xin1, YANG Chengjian1   

  1. 1. Guangxi Key Laboratory of Buffalo Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, Guangxi Buffalo Research Institute, Chinese Academy of Agricultural Science, Nanning 530001, China;
    2. Yulin Animal Husbandry Station, Yulin 537000, China
  • Received:2020-03-26 Online:2020-08-20 Published:2020-08-15

Abstract: The aim of this study was to investigate the enrichmen condition of Methanomassiliicoccales from buffalo rumen,methanol,monomethylamine,dimethylamine or trimethylamine were used as substrates in BRN culture medium respectively.Methane production,population and diversity indices of Methanomassiliicoccales and methanogen,wasmeasure by gas chromatography,Real-time quantitative PCR and high-throughput sequencing of the 16S rRNA gene.The results showed that:The methane production of trimethylamine group was higher than other group significantly (P<0.05).The copy of Methanomassiliicoccales and methanogen of methanol group and trimethylamine group were higher than control group significantly(P<0.05) in 1st generation.The copy of Methanomassiliicoccales and methanogen of trimethylamine group were higher than control group,monomethylamine group,dimethylamine group significantly (P<0.05) in 7th generation.The copy of Methanomassiliicoccales was detected in trimethylamine group and dimethylamine group only in 23rd generation,and the copy of methanogen of trimethylamine group was highest.The result of Alpha diversity indices showed that,the Ace and Chao1 index of trimethylamine group were higher than control group significantly (P<0.05).The relative abundance of methanogen at order level were more than 90%.The methane production,population and relative abundance of Methanomassiliicoccales were increased while trimethylamine was used as substratesduring transfers.

Key words: buffalo; rumen; Methanomassiliicoccales; methane

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