@article {10.3844/ajavsp.2021.166.171, article_type = {journal}, title = {The Vitamin A and E Forms Influence Differently the Plasma Vitamin Concentrations in Newly Received Calves}, author = {Buenabad, Lorenzo and Barreras, Alberto and Plascencia, Alejandro and Zinn, Richard Avery}, volume = {16}, number = {2}, year = {2021}, month = {May}, pages = {166-171}, doi = {10.3844/ajavsp.2021.166.171}, url = {https://thescipub.com/abstract/ajavsp.2021.166.171}, abstract = {Ten Holstein steer calves (105±3 kg) were used to evaluate bioavailability of two Vitamin A or E forms, “natural” (EA1) or “synthetic” (EA2), based on plasma vitamin concentrations during a 3-d period post injection(subcutaneous). Plasma retinyl palmitate and plasma Vitamin A concentration (retinol equivalent of all forms) was greater 24 and 48 h (P}, journal = {American Journal of Animal and Veterinary Sciences}, publisher = {Science Publications} }