|Most of the pig ears manufactured in the United States are safety inspected and are safe. There have been cases, however, of Salmonella being transmitted through pig ears. After handling pig ears, or any meat-based treat for your dog, you should wash your hands with plenty of soap and warm water. Keep pig ears off of food preparation or serving areas.
Pig ears have a high fat content and would certainly not be the treat of choice for dogs with weight problems, or those prone to pancreatitis. If given in large quantities (as compared to the size of the dog or puppy), pig ears can also cause loose stools. The bottom line is moderation.
It is always a good idea to supervise your dog when giving him any treat, and prevent him from swallowing large pieces of chew items.