I'm genuinely curious - do PETA have a peer reviewed study for this claim? I only ask because the propagation of the human race depends on a man being able to have enough blood flow to his genital area to cause an erection to form, and then continue through the steps of coitus. Seeing as though there have been many, many generations before us that have eaten meat and still managed to reproduce, this claim on the face of it seems fallacious.
Don't get me wrong - i love my fruit and vegetables as much as the next vegetarian or vegan, but such outlandish claims without proper evidence make PETA look ridiculous. I understand the message they want to get out to people, but there's probably better ways of doing it.
Besides... that chick got hit with an ugly stick. Perhaps the cattlemen were so turned off by her that they didn't want to come?