I figure I'd chime in on this one considering the sponsor so nicely called me out.
First, I've never owned a guinea pig, but if they are anything close to as pleasant as my pet hampster, Tiger, then I'd gladly support this.
My only question is, like Rowan asked, do we really have doctors performing procedures they don't know how to perform? Or is this just merely to make it official? I don't pretend to know anything about the neutering of guinea pigs, so unlike the cat bill, I'm willing to be educated.