Hi totally new here! We had piglets born 9 days ago, two of them are showing several signs of joint ill...one of the has it in two legs now and is struggling. All I have here is penicillin and I would like to know if that would work? Also, how much and for how long? I am new to meds for pigs....I'm used to goats! This is our first venture with raising piglets (other than feeder pigs). If it matters, they are American Guinea Hog/KuneKune cross piglets.