I have a 22 month old Dexter / Drought Master steer. About six weeks ago his legs started to get stiff, this alarmed me because 12 months ago I lost his mum and she had the same symtoms. The vet warily diagnosed septic arthritis, gave him a course of antibiotics and I am injecting him every 4 days with an anti-inflammatory. This relieves the stiffness but when the anti-inflammatory wears off he is stiff again. He has a good appetite. I have looked around the internet, found this site and thought I may get some more advise. From what I have read he seems too old to have joint ill.