Research Article Open Access

The Vitamin A and E Forms Influence Differently the Plasma Vitamin Concentrations in Newly Received Calves

Lorenzo Buenabad1, Alberto Barreras2, Alejandro Plascencia2 and Richard Avery Zinn3
  • 1 Universidad Autónoma de Chihuahua, Mexico
  • 2 Universidad Autónoma de Baja California, Mexico
  • 3 University of California-Davis, United States

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<0.01) post injection of retinyl palmitate vs retinyl propionate. Likewise, plasma retinol was greater (P = 0.04) 72 h post injection of retinyl palmitate. Plasma retinyl propionate was undetected for either treatment, indicative that it is not absorbed as a parent compound. Plasma retinyl palmitate, retinol and total Vitamin A concentrations peaked 24 h (P<0.01) post injection, decreasing toward baseline levels by 72 h post injection. Plasma tocopherol concentration was greater 24 h post injection (P<0.01) for calves injected with D-α-tocopherol vs DL-α-tocopherol. Levels were not different among treatments 48 h post injection (P>0.10). Plasma tocopherol concentrations were maximal (P<0.01) 24 h post injection of D-α-tocopherol, promptly decreasing by 72 h post injection (a level comparable to that observed with DL-α-tocopherol injection). We concluded that based on plasma concentrations, bioavailability of parenterally supplemented retinyl palmitate and D-α-tocopherol are greater than that of retinyl propionate and DL-α-tocopherol under acute Vitamin A or E supplementation.

American Journal of Animal and Veterinary Sciences
Volume 16 No. 2, 2021, 166-171

DOI: https://doi.org/10.3844/ajavsp.2021.166.171

Submitted On: 13 January 2021 Published On: 31 May 2021

How to Cite: Buenabad, L., Barreras, A., Plascencia, A. & Zinn, R. A. (2021). The Vitamin A and E Forms Influence Differently the Plasma Vitamin Concentrations in Newly Received Calves. American Journal of Animal and Veterinary Sciences, 16(2), 166-171. https://doi.org/10.3844/ajavsp.2021.166.171

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Keywords

  • Holstein Calves
  • Retinyl Palmitate and Propionate
  • Tocopherol