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Activity of BHMT (A), MTR (B), and CBS (C) in liver tissue from Holstein cows individually fed a control diet or the control plus rumen-protected Met (0.9 g/kg dry matter intake) during the 28 d before parturition. Values are means ± pooled SEMs, n = 10 per treatment group. BHMT, betaine-homocysteine S-methyltransferase; CBS, cystathionine β-synthase; MTR, 5-methyltetrahydrofolate-homocysteine methyltransferase.
