I live on a farm and I have over a 100 and 1 dog  5 chickens 3 horses and a pig call ham. 1 of our calves feel a bit ill but nothing unusual. A day went past. he felt really ill. The vet came to have a look. He needed a special tape of median we have to give him the median every day. he got better every day. Now he is a big strong cow. He is not ill anymore.