%0 Journal Article %9 journal article %J Journal of Animal and Feed Sciences %@ 1230-1388 %V 13 %N Suppl. 1 %D 2004 %F Pinotti2004 %T Metabolism in periparturient dairy cows fed rumen-protected choline %X We evaluated daily supplementation with rumen-protected choline (RPC) for 45 days on the metabolism of transition dairy cows, assigning 15 cows to either control (no RPC but 1000 IU vitamin E) or treatment (50 g RPC plus 1000 IU vitamin E). On day 20 of lactation, treatment significantly increased plasma cholesterol, folate and α-tocopherol and lowered NEFA, with a tendency for increased glucose and choline phospholipids, and reduced β-hydroxybutyrate. These differences indicate improved lipid and methyl group metabolisms. Milk production tended to be increased. RPC supplementation seems useful for optimizing the metabolic profile of transition dairy cows. %A Pinotti, L. %A Campagnoli, A. %A Sangalli, L. %A Rebucci, R. %A Dell’Orto, V. %A Baldi, A. %P 551-554 %R 10.22358/jafs/74033/2004 %U https://doi.org/10.22358/jafs/74033/2004