Fig. 2

Pearson correlations between hepatic cystathionine β-synthase (CBS) and betaine homocysteine methyltransferase (BHMT) activity, CBS and 5-methyltetrahydrofolaare-homocysteine methyltransferase (MTR) activity, MTR and methionine adenosyltransferase (MAT) activity and liver choline and betaine concentrations in Holstein cows fed to 60% of their net energy for lactation requirements and receiving abomasal infusions of 0, 6.25, 12.5 or 25 g/d choline ion for 4 d [37, 38]