Evaluation of supplemental vitamin A and E on 56-day growth performance, dietary net energy, and plasma retinol and tocopherol concentrations in Holstein steer calves

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:34:17Z
Fecha de publicación2014-01-01
ResumenThirty Holsteins steers (initial weight 230 ± 1 kg) fed as calves were used in a 56-d experiment to evaluate the influence of vitamin A and E supplementation on growth performance, dietary energetics, and plasma retinol and tocopherol concentrations. Steers were fed a steamflaked, corn-based diet. Three treatments (TMT) were evaluated: TMT1 had no supplemental vitamins, TMT2 supplemented 30,000 IU/d of vitamin A as retinyl propionate plus 250 IU/d of vitamin E as all-rac α-tocopheryl acetate, and TMT3 supplemented 30,000 IU/d of vitamin A as retinyl palmitate plus 250 IU/d of vitamin E as d-α-tocopherol (RRR α-tocopherol). Treatment supplements were freshly prepared and applied to feed once daily in the morning. Form of supplemental vitamins A and E did not affect cattle growth performance or dietary energetics. Vitamin supplementation increased final BW (3.7%, P = 0.02), ADG (10.7%, P = 0.02), and DMI (7.1%, P = 0.05). There were no treatment effects (P > 0.30) on gain efficiency or dietary net energy. There were no treatment effects on plasma retinol on d 28. However, by d 56, vitamin A supplementation increased (P = 0.01) plasma retinol by 56%. Form of supplemental vitamin A did not influence (P > 0.30) plasma retinol. Vitamin E supplementation increased (P < 0.01) plasma tocopherol. On d 28, plasma tocopherol tended to be greater (P = 0.12) with supplemental tocopheryl acetate than for supplemental tocopherol. By d 56 plasma tocopherol was 31% greater (P = 0.03) for all-rac a-tocopheryl acetate than for RRR α-tocopherol supplemented steers. Vitamin supplementation may enhance DMI and corresponding ADG of Holstein steer calves fed a steam-flaked corn-based diet. Ester forms of vitamin A (retinyl propionate vs. retinyl palmitate) are comparable.es_ES
Doihttps://doi.org/10.15232/pas.2014-01316es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/6056
Idiomaenes_ES
EditorialElsevier Inc.es_ES
RelaciónProfessional Animal Scientistes_ES
URL relacionadohttps://doi.org/10.15232/pas.2014-01316es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteProfessional Animal Scientist
Palabra claveFeedlotes_ES
Palabra claveHolsteines_ES
Palabra claveVitamin Aes_ES
Palabra claveVitamin Ees_ES
TítuloEvaluation of supplemental vitamin A and E on 56-day growth performance, dietary net energy, and plasma retinol and tocopherol concentrations in Holstein steer calveses_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorSalinas-Chavira, J.
AutorArrizon, A.A.
AutorBarreras, A.
AutorChen, C.Z.
AutorPlascencia, A.
AutorZinn, R.A.
AutorSalinas-Chavira, J.es_ES
AutorArrizon, A.A.es_ES
AutorBarreras, A.es_ES
AutorChen, C.Z.es_ES
AutorPlascencia, A.es_ES
AutorZinn, R.A.es_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número5es_ES
Rango de páginas510-514es_ES
URL relacionadahttps://doi.org/10.15232/pas.2014-01316
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen30es_ES

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