Evaluation of supplemental vitamin E on 56-day feedlot growth performance and plasma tocopherol concentrations in calf-fed Holstein steers

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:33:22Z
Fecha de publicación2017-01-01
ResumenFifty-four Holstein steer calves, divided in two weight groupings (141.2 +/- 4.9 kg and 454.2 +/- 7.0 kg respectively), were used in a 56-day study to evaluate the influence of supplemental vitamin E on growth performance and plasma vitamin concentrations. Steers were assigned within body weight groupings to 18 pens, 3 steers/pen. Dietary treatments consisted of a steam-flaked corn-based growing-finishing diet supplemented to provide 0, 250, or 500 IU/d of vitamin E as all racemic a-tocopherol. No morbidity was apparent during the course of the study. Calves in the heavier weight grouping had greater average daily gain (24.4\%, P <.01), dry matter intake (54.3\%, P <.01), and lower gain efficiency (40.7\%, P <.01). Vitamin E supplementation did not affect (P >.10) feedlot growth performance. Initial and 56-day plasma tocopherol were not influenced (P >.10) by weight grouping. Final 56-day plasma tocopherol increased linearly (P <.01) with level of vitamin E supplementation. Plasma tocopherol of non-supplemented steers decreased (P =.01) from an average initial concentration of 1.66-1.16 ug/mL at day 56. It is concluded that vitamin E supplementation of calf-fed Holstein steers receiving a conventional steam-flaked corn-based growing-finishing diet is not expected to enhance growth performance.es_ES
Doihttps://doi.org/10.1080/09712119.2015.1129340es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/5203
Idiomaenes_ES
EditorialTAYLOR \& FRANCIS LTDes_ES
RelaciónJournal of Applied Animal Researches_ES
URL relacionadohttps://doi.org/10.1080/09712119.2015.1129340es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteJournal of Applied Animal Research
Palabra claveTocopheroles_ES
Palabra claveHolsteines_ES
Palabra clavefeedlotes_ES
Palabra claveperformancees_ES
TítuloEvaluation of supplemental vitamin E on 56-day feedlot growth performance and plasma tocopherol concentrations in calf-fed Holstein steerses_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorCano, A. B.
AutorMontano, M.
AutorSalinas-Chavira, J.
AutorZinn, R. A.
AutorCano, A. B.es_ES
AutorMontano, M.es_ES
AutorSalinas-Chavira, J.es_ES
AutorZinn, R. A.es_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número1es_ES
Rango de páginas90-92es_ES
URL relacionadahttps://doi.org/10.1080/09712119.2015.1129340
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen45es_ES

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