Comparison of productive and biological characteristics of indigenous and imported cattle in Yakutia

Abstract

Abstract The aim of this research was evaluation of the rumen and faecal bacterial communities with high-throughput sequencing of 16S rDNA in indigenous Yakut and transferred Kalmyk cows, which have potentially valuable gene pools for beef cattle breeding. The obtained results showed a similar composition of the microbiomes in the rumens of Yakut and Kalmyk cows. The dominant bacterial phyla in the rumen microbiocenoses were Firmicutes and Bacteroidetes represented mainly by the Prevotellaceae, Porphyromonadaceae, Ruminococccaceae and Lachnospiraceae families. In the faeces of the cow breeds, compared families Bacteroidaceae, Clostridiaceae, Ruminococcaceae and Verrucomicrobiaceae were the most numerous. Further work is necessary to reveal the role of the identified bacterial taxa in changes of the rumen fermentation.