I have some pigs kept in a stable and out on some level smooth concrete, bedding in the stable, they have a small area of mud at the end of the concrete which is quite stony . My older pig is limping on its front foot and now of some new piglets I have bought in 1 has also gone lame on its front foot . They go running around like crazy and I'm wondering if they've landed on a sharp stone and its due to that.
Would this be likely to be true , if not any other suggestions and how to treat it going forward , looking to move them into a spinney area soon .