It's not that retarded. Pigs have always been used in medicine because they're biocompatible but don't share many diseases. But EGF is in a bunch of other bodily fluids. Seems like milk or even blood plasma would've been easier than the Hog Sucker 9000.

At least he looks like he's enjoying himself.

You ever want to want to wonder if the animal rights people have a point, look into how they manufacture some of the hormone based shit. There's a cream they make so that post-menopausal women can feel better having sex. To source the estrogen, they keep tens of thousands of restrained horses pregnant non-stop while they harvest the urine. Pfizer off-shored this to China of course.