Interaction of early metabolizable protein supplementation and virginiamycin on feedlot growth performance and carcass characteristics of calf-fed Holstein steers.

Holstein feedlot performance protein virginiamycin

Journal

Translational animal science
ISSN: 2573-2102
Titre abrégé: Transl Anim Sci
Pays: England
ID NLM: 101738705

Informations de publication

Date de publication:
Jan 2022
Historique:
received: 10 09 2021
entrez: 31 1 2022
pubmed: 1 2 2022
medline: 1 2 2022
Statut: epublish

Résumé

One hundred sixty-eight Holstein steer calves (133.4 ± 7.9 kg) were used to evaluate the influence of virginiamycin (VM) supplementation on cattle growth performance and liver abscess incidence, and the effect of feeding 100% vs. 87% of metabolizable protein (MP) requirements during the initial 112 d on growth performance, efficiency of energy utilization, and carcass characteristics. Steers were balanced by weight and assigned to 28 pens (6 steers/pen). During the initial 112-d feeding period, dietary treatments consisted of two levels of MP (100% vs. 87% of expected requirements) supplemented with or without 22.5 mg/kg VM in a 2 × 2 factorial arrangement. There were no VM × MP supplementation interactions (

Identifiants

pubmed: 35098040
doi: 10.1093/tas/txab228
pii: txab228
pmc: PMC8794029
doi:

Types de publication

Journal Article

Langues

eng

Pagination

txab228

Informations de copyright

© The Author(s) 2021. Published by Oxford University Press on behalf of the American Society of Animal Science.

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Auteurs

Pedro H V Carvalho (PHV)

Department of Animal Science, University of California, Holtville, CA 92250, USA.

Brooke C Latack (BC)

Cooperative Extension, Division of Agriculture and Natural Resources, University of California, Holtville, CA 92250, USA.

Ruben Flores (R)

Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autónoma de Baja California, Mexicali, BC 21386, México.

Martin F Montano (MF)

Instituto de Investigaciones en Ciencias Veterinarias, Universidad Autónoma de Baja California, Mexicali, BC 21386, México.

Richard A Zinn (RA)

Department of Animal Science, University of California, Holtville, CA 92250, USA.

Classifications MeSH