[somebunny]

Sorry to say, all that information is wrong.

Spay/neuter is very safe when performed by an experienced vet. The success rate should be 99.99%.

As for anesthetic, both injectible and gas can be used.. there are types which are safe for rabbits. The only difference is that gas does not stay in the rabbit's blood system and is removed from the body when the rabbit breathes. So in that sense, it is less stressful on the rabbit's body especially on the liver, and the rabbit will recover faster from the effects of anesthesia.

If you want, I can give you my vet's contact. His clinic is near Ikea.