Rumen bacteria influence milk protein yield of yak grazing on the Qinghai-Tibet plateau.

ABSTRACT:

Objective

Ruminants are completely dependent on their microbiota for rumen fermentation, feed digestion, and consequently, their metabolism for productivity. This study aimed to evaluate the rumen bacteria of lactating yaks with different milk protein yields, using high-throughput sequencing technology, in order to understand the influence of these bacteria on milk production.

Methods

Yaks with similar high milk protein yield (high milk yield and high milk protein content, HH; n = 12) and low milk protein yield (low milk yield and low milk protein content, LL; n = 12) were randomly selected from 57 mid-lactation yaks. Ruminal contents were collected using an oral stomach tube from the 24 yaks selected. High-throughput sequencing of bacterial 16S rRNA gene was used.

Result

SUBMITTER: Fan Q 

PROVIDER: S-EPMC8495338 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature