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A cross-sectional study of prevalence and risk factors for foot lesions and abnormal posture in lactating sows on commercial farms in England

Published online by Cambridge University Press:  01 January 2023

AL KilBride ,
CE Gillman  and
LE Green
AL KilBride
Affiliation:
Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, UK
CE Gillman
Affiliation:
Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, UK
LE Green*
Affiliation:
Department of Biological Sciences, University of Warwick, Coventry CV4 7AL, UK
*
* Contact for correspondence and requests for reprints: [email protected]
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Abstract

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A cross-sectional study of lactating sows in 71 commercial pig herds in England was carried out to estimate the prevalence of foot lesions and abnormal posture and investigate the associated risks. Observational data were collected on the standing posture, lesions on the hind left foot, and the pen the sow was housed in for 233 sows. The prevalence of foot lesions was 76.8% and 10.8% of lactating sows had abnormal posture. Sows housed on slatted floors during pregnancy had an associated increased risk of heel flaps but a reduced risk of toe erosion, compared with sows housed on solid concrete floors with bedding during pregnancy. There was an increased risk of abnormal posture in lactating sows housed on slatted floors during pregnancy compared with those housed on solid concrete floors with straw bedding during pregnancy. In addition, there was an increased risk of abnormal posture in lactating sows with wounds on the limbs and erosions on the toe and the heel/sole. The positive association between abnormal posture and foot lesions suggests that these lesions might be painful. Housing sows on solid floors during pregnancy might reduce the risk of abnormal posture, and certain foot lesions, in sows during lactation. However, posture is a less sensitive measure of lameness than gait, and the nature of the causal relationship between foot lesions and lameness requires further investigation.

Keywords

animal welfarecross-sectional studyfoot lesionshousing systemlamenessstanding posture
Type
Research Article
Information
Animal Welfare , Volume 19 , Issue 4 , November 2010 , pp. 473 - 480
Copyright
© 2010 Universities Federation for Animal Welfare

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