some years ago, my dear Mr Bingley started a thread (which i can't find) about all the specialized words for animal 'droppings'
manure, (chicken sh*t)
Frass (insect)
Offal (i forget)
Others (lots, that i forgetten, but often recognize when i see them)

and it got me thinking..
a dog is spayed
a cat neutered
a horse gelded--resulting in a gelding

a cow? (the result is oxen, but the process? does it have a specific name?)

are there other words specifically for neutering different species?

when it's done to a camel or an elephant, or a ram (the result is a bellwether, but is it called neutering or spaying or bellwethering? or something else?)