Dataset for "Meta-analysis of supplemental methionine effects on plasma amino acid concentrations in dairy cows"

Supplementing rumen protected Met is a common practice on dairy farms. The hypothesis of this study was that cows provided supplemental Met would have altered plasma AA concentrations indicative of AA metabolism in response to altered plasma Met. This question was addressed through a meta-analysis of peer-reviewed studies that supplemented lactating cows with rumen protected Met and evaluated plasma AA concentrations. There were 41 studies feeding 60 control and 78 Met treatments that met the selection criteria and entered into the final analysis. This file provides the final reference list and raw data used to conduct this analysis.