Below are the links to some research papers where the information above was sourced:
- Winter, J. R., Kaler, J., Ferguson, E., KilBride, A. L. & Green, L. E. (2015) Changes in prevalence of, and risk factors for, lameness in random samples of English sheep flocks: 2004-2013. Preventive Veterinary Medicine, 122 (1-2): 121-128.
- Angell, J. W., Grove-White, D. H. & Duncan, J. S. (2018) Sheep and farm level factors associated with footrot: a longitudinal repeated cross-sectional study of sheep on six farms in the UK. Veterinary Record, 182 (10): 293.