Rearing and handling injuries in broiler chickens and risk factors for wing injuries during loading
Cockram, Michael S. and Dulal, Ketan Jung and Stryhn, Henrik and Revie, Crawford W. (2020) Rearing and handling injuries in broiler chickens and risk factors for wing injuries during loading. Canadian Journal of Animal Science, 100 (3). pp. 402-410. ISSN 0008-3984 (https://doi.org/10.1139/CJAS-2019-0204)
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Abstract
Some injuries to broilers occur during rearing, but most injuries occur during handling before slaughter. Records provided by a processing plant for loads transported over a 19 mo period during 2009 and 2010 were examined. The median percentage of wing injuries per load was 5.7%, whereas injuries to the legs, breast, or shoulders were all less than 1% per load. Risk factors for wing injuries were examined by considering the data from each load by handling event (i.e., loads originating from the same producer on the same date). A multilevel model with three levels, producer (n = 86), handling event (n = 1694), and load (n = 4219), was fitted. The final model included weight, sex, season, catching team, time of day at which loading began, speed of loading, and an interaction between speed of loading and time of day. Factors that reduced the risk of wing injuries were loading lighter birds, loads containing only cockerels, and loading in the fall. The predicted percentage of wing injuries was relatively constant for slower loading speeds, but it was increased significantly when faster loading speeds were adopted during daytime (0700–1700). Identification of these risk factors can be used to adjust loading practices.
ORCID iDs
Cockram, Michael S., Dulal, Ketan Jung, Stryhn, Henrik and Revie, Crawford W. ORCID: https://orcid.org/0000-0002-5018-0340;-
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Item type: Article ID code: 72004 Dates: DateEvent30 September 2020Published13 February 2020Published Online28 January 2020AcceptedSubjects: Agriculture > Animal culture Department: Faculty of Science > Computer and Information Sciences Depositing user: Pure Administrator Date deposited: 07 Apr 2020 13:19 Last modified: 20 Sep 2024 00:40 URI: https://strathprints.strath.ac.uk/id/eprint/72004