It is suggested that both Gukang and estrogen can similarly increase BMC and BMD of tuberositas tibiae in ovaricetomized rats,and the changes in BMC and BMD are alike.
What if we decide to simply dispose of that word, and I don't think there's an English word I dislike more than " emasculation." A Nigerian acquaintance once asked me if I was worried that men would be intimidated by me.
In many of Hemingway's novels, you see men who have been emasculated by war, by love, in such a way that they can no longer function in society as they used to.
So, " neutered" is what we use for both male and female, but to be more specific: " castrated" , removal of the testicles is for the man, and " spayed" is for the girl.