Answer: There is no maximum age at which these neutering operation can be perfumed, i.e. no cat is too old, but in general there is no point in delaying the operation unless:
1 You wish to breed from a female. If you feel you might to breed in the future, a drug (progestagen/progestin) can be give the meanwhile to prevent her from coming into heat and displaying the behavior mentioned earlier, or.
2 You wish a male develop the characteristic tom cat features of a wide head, puffy checks and large body. You could then have him costarred at two to three years, old Castrating an older tom cat may not stop him spraying urine, through it is 90% effective, but as last it stops the objectionable smell. He may also still want to roam, fight or even mate; this behavior occasionally persists, particularly in very sexually experienced male. But certainly his appearance will improve from a smelly, rough looking cat into a well groomed individual. In general most males and females show a gradual decline in sexual behavior after neutering.
Certainly, the ‘chemical castration’’ of male cats is being actively investigated; on or two injections of the drug cyprodione acetate permanently inhibit the effects of male sex hormone on the body.
