We have developed a simple tool for practically deciding how lame a sheep is. This can be used for gauging how severe lameness is in sheep and for monitoring - working out whether it is getting better or worse. We have validated the tool for use by farmers and vets, but other workers may find it useful too. The video explains the basis of the locomotion scoring tool and then provides some examples with an opportunity to test yourself as well.
Angell, J.W., Cripps, P.J., Grove-White, D.H., Duncan, J.S., 2015. A practical tool for locomotion scoring in sheep: its reliability when used by veterinary surgeons and sheep farmers. Veterinary Record, 176(20):521-523.