immune deficiency

Hello! My 2 boars are (finally, it has been a bumpy ride) nearing the end of their antibiotic treatment - for how long after my piggies’ last antibiotics dose should I continue giving them probiotics? And how long after they stop taking antibiotics are they more susceptible to illness? They have...

One of my pigs is about 8 months old and has developed large black scabs on the front and in the corners of his mouth, I have looked into it and have been told it could be a problem with his stomach and is some type of immune deficiency condition and it may not be possible to cure it. It seems...