The animal should have no udder lumps, skin lesions or other signs of ill health such as diarrhea, runny eyes or nose, or pale gums. ???The easiest way to get a disease is to buy it and bring it home,??? Nistock stresses. ???There are many blood tests available and you shouldn???t hesitate to ask that they be done on potential breeding stock.??? Ask your veterinarian what tests he or she recommend