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Environmental and field characteristics associated with lameness in sheep: a study using a smartphone lameness app
Yiorgos Vittis1, Jasmeet Kaler2
1Ruminant Population Health Group, School of Veterinary Medicine and Science, University of Nottingham, Nottingham, UK.
Background:
Sheep lameness is a major concern among farmers and policymakers with significant impacts on animal welfare standards as well as financial and production performance. The present study attempts to identify the relative importance of environmental and farm-level management characteristics on sheep lameness.
Method:
To address this objective, data were derived from the SPiLaMM project from 18 farms that used smartphone app to collect data, the British Geological Survey and the Meteorological Office over 2016-2018. Data were analysed using a multilevel Poisson regression model.
Results:
Temperature and higher length of pasture had a positive relationship with lameness while concentration of Selenium in soil and flock size had a negative relationship with lameness. In addition, results showed lower lameness levels for the bedrock class mudstone, siltstone, limestone and sandstone in comparison to sandstone and finally, lambs and ewes younger than 1year old had lower levels of lameness than older ewes.
Conclusion:
Findings of the present approach show the potential use of data collected via a smartphone app to study the epidemiology of disease. Furthermore, factors identified could be validated in intervention studies and generate data-driven disease predictive models.
