This is bit misconception, pigs are really similar to us and we can get BSE or how is it called in humans (it has several names according to the animal that gets the disease).
The problem why the BSE got out of hand was because they used these parts as feed for another animals.
Because prion risk
afaik not an issue with pigs, but with bovines and deer, would not eat those and neither would have Grandmother, BSE was a big thing when i was a kid.
This is bit misconception, pigs are really similar to us and we can get BSE or how is it called in humans (it has several names according to the animal that gets the disease).
The problem why the BSE got out of hand was because they used these parts as feed for another animals.