Impacts of commingling preconditioned and auction-derived beef calves on bovine respiratory disease related morbidity, mortality, and weight gain.
auction-derived
average daily gain (ADG)
fence-line weaning
health performance
mixing
preconditioning
Journal
Frontiers in veterinary science
ISSN: 2297-1769
Titre abrégé: Front Vet Sci
Pays: Switzerland
ID NLM: 101666658
Informations de publication
Date de publication:
2023
2023
Historique:
received:
04
01
2023
accepted:
27
02
2023
medline:
4
4
2023
entrez:
3
4
2023
pubmed:
4
4
2023
Statut:
epublish
Résumé
Stressors predisposing to bovine respiratory disease (BRD) upon arrival in the feedlot, include the ranch to feedlot transition and mixing cattle from multiple sources. Preconditioning (PC) reduces multiple stressors, but commingling PC and auction-derived (AD) calves in a feedlot may increase BRD risk. Our objective was to evaluate PC calf performance over the first 40 days in the feedlot and determine impacts of commingling with varying proportions of AD calves (25, 50, and 75%). Calves were either preconditioned at one ranch ( Over 40 days, morbidity in pen 100 PC was lower compared to 0 PC (24 vs. 50%, In conclusion, PC calves had lower morbidity over the first 40 days, irrespective of commingling. With larger variations in arrival weight, there was no advantage of PC for ADG in the first 40 days. The unknown weaning strategies and comparable arrival weights of AD calves may have contributed to greater ADG in AD calves.
Identifiants
pubmed: 37008349
doi: 10.3389/fvets.2023.1137078
pmc: PMC10063904
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1137078Informations de copyright
Copyright © 2023 Mijar, van der Meer, Pajor, Hodder, Louden, Thompson and Orsel.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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