Coordinated response of milk bacterial and metabolic profiles to subacute ruminal acidosis in lactating dairy cows.

ABSTRACT:

Background

Bovine milk is an important source of nutrition for human consumption, and its quality is closely associated with the microbiota and metabolites in it. But there is limited knowledge about the milk microbiome and metabolome in cows with subacute ruminal acidosis.

Methods

Eight ruminally cannulated Holstein cows in mid lactation were selected for a 3-week experiment. The cows were randomly allocated into 2 groups, fed either a conventional diet (CON; 40% concentrate; dry matter basis) or a high-concentrate diet (HC; 60% concentrate; dry matter basis).

Results

The results showed that there was a decreased milk fat percentage in the HC group compared to the CON group. The amplicon sequencing results indicated that the alpha diversity indices were not affected

SUBMITTER: Mu Y 

PROVIDER: S-EPMC10158360 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature