Bloody hell Yetman, attack of the old Godwin's law, eh?
I wouldn't regard this as torture, for the same reason that I wouldn't regard killing an animal (not a human, I know humans are animals) as murder, whatever the circumstances. Animals are not human and as such are not entitled to the same rights/treatment as humans. Part of the problem with applying the same standards to animals that ou do to humans is knowing where to stop. Do mammals have more rights than birds? Do birds have more rights than insects? (reducto ad absurdum I know, but you see where I am coming from)
However, that doesn't mean I think you should be unnecessarily cruel to animals, rather that it is a stain against your moral conscience if you are. Problem being, define necessarily