2 days ago noticed a lamb alone in the maternity paddock. 6 hours later saw him still off a bit by himself although mum + brother were nearby, so didn't worry overmuch.
Yesterday realised same lamb was alone again, and seemed to have a swollen hock. When went to catch him he ran off on 3 legs. Uh-oh. Penned him & mum/brother, caught lamb, wondering if he had got a leg stuck in a fence or something and wrenched the joint. Nup, joint not hot or sore. Double uh-oh. Only seen this once, the lamb died within a couple of days as her mum abandoned her. Watched closely for 3-4 hours, didn't see him get a drink. So offered him a bottle (NOT easy with a 5 week old stubborn lamb!) and started him on the cod liver oil, plus B & C. Left family penned overnight.
Today he is swollen in a knee as well as the hock, and the fight has gone out of him - not a good sign. Continuing with the bottles plus the same meds but I have my doubts he will make it.
Strange that his twin is just fine. Only difference in them is the other boy has a real hair coat, this bloke is woolly. The only other lamb we've had with rickets was also a wool coat. Coincidence??