Drafty,
You should watch a horse or any other animal get it's seman collected. It's interesting to say the least. My dad's thesis for his M. S. involved heat stress on boar sperm. Very comical to watch a pig mount a thing that looked like a pommel horse in gymnastics, and then jerk off in a jar. A lot of animal breeding is now done A. I. and frozen sperm is bought and sold like any other commodity. It's a lot cheaper to buy top shelf genetics sperm for $100 a shot then to own the million dollar bull or stallion.
I don't have a problem with this with domesticated animals. When we're talking "wildlife", I draw the line there, expecially when the most desired genetic trait is antler mass. Marv's right when said "this brings horn porn to a brand new level".