There is no pig’s milk or horse’s milk sold in the United States. Most dairy farms do not have any pigs or horses at all! It is illegal to put any milk from any animal other than a cow, sheep, or goat into any product that is transported across state lines for sale in the United States, and if anyone ever tried to do that they would get caught and it would cause a major scandal. In fact, despite draconian inspections that are far more frequent and strict than the supervision provided by the major kashrut agencies to food processors that don’t sell meat, there has never been such a scandal.
Uhhuh, uhhuh. And the beef doesn’t have any horse meat either. It is illegal and there would be a big scandal if they were caught. Yup.