Strategies for the early detection of sick and injured sows musr have high detection sensitivity so that appropriate treatments or interventions can be made. Ideally, they should be cost-effective in terms of labour requirements. The aim of the experiment was to compare the frequencies of physical abnormalities detected in group-housed sows using a variety of inspection methods. The null hypothesis was that inspection method had no effect on the proportion of physical abnormalities detected in sows housed in groups on a commercial farm.
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