51 The effect of initial liver copper status in finishing steers fed three dietary levels of copper with or without ractopamine hydrochloride on liver copper status, growth performance and carcass characteristics.

To determine the effect of copper status on ractopamine hydrochloride-induced growth, 96 Angus-cross steers (470 ± 35 kg) were assigned to a 3 x 2 factorial. Factors included Cu-supplementation (mg Cu/kg DM) at: 0 (Low), 10 (Med), or 20 (High) from Availa-Cu (Zinpro; Eden Prairie, MN) and ractopamin...

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Publié dans:J Anim Sci
Auteurs principaux: Messersmith, E, Branine, M, Genther-Schroeder, O, Hansen, S
Format: Artigo
Langue:Inglês
Publié: Oxford University Press 2018
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Accès en ligne:https://ncbi.nlm.nih.gov/pmc/articles/PMC6285568/
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1093/jas/sky404.851
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