https://www.selleckchem.com/TGF-beta.html
This experiment was conducted to investigate the effects of dietary rumen-protected betaine (RP supplementation, as partial replacement for methionine, on the lactation performance of mid-lactation dairy cows. A total of 36 Holstein dairy cows were randomly assigned to three groups [control, 20 g/day RPB, or 15 g/day rumen-protected methionine (RPM)]. The experiment was conducted over 9 weeks, with the first week for adaptation. Blood metabolites were analyzed with metabolomics in the control and RPB groups. The results revealed that the milk
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