Effects of changes in rumen microbial adaptability on rumen fermentation and nutrient digestion in Horqin beef cattle during different seasons of grazing and supplementary feeding.

ABSTRACT:

Background

The purpose of this study was to investigate the effects of changes in rumen microbial adaptability on rumen fermentation and nutrient digestion in Horqin beef cattle during different seasons of grazing and supplementary feeding. Four healthy female Horqin beef cattle were selected as experimental animals for grazing and supplementary feeding. The feed, feces, and rumen fluid were collected in spring (March), summer (June), autumn (September), and winter (December) to determine nutrient digestibility, rumen fermentation parameters and microflora. The microflora was sequenced with 16S rRNA.

Results

The results revealed that the rumen volatile fatty acid, ammonia nitrogen and microbial protein concentrations in summer were significantly higher than those in the othe

SUBMITTER: Peng W 

PROVIDER: S-EPMC12382152 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature