We buy from a Nutrena feedstore and I want to buy a feed containing CTC or Chloratetracycline for my goats. It should contain AC also if possible. I have done a few searches on the net but am having difficulty figuring out what I need. If Nutrena does not have it, what about Purina or whatever? Can someone recommend a brand? Please be specific so I can write it down and give it to my hubby to take with him to town tomorrow. Thanks.