A gelding
A castrated male goat is called a wether.
a gelding (say gel-ding)
A stallion. Castrated males are called geldings.
A group of emu eggs that is being incubated by a male emu is called a "clutch".
A young Emu is called a Chick or a hatchling .
A male hog is called a boar. A caserated boar is called a bar.
A sow is female, and males are called boars.
Male emus are only referred to as male emus and female emus as female emus.
Young male sheep are called Buck Lambs...when they are fully grown they are called Rams. Male sheep are sometimes referred to as tups. Rams and tups are only intact males; casterated males are called wethers.
Male emus are only referred to as male emus and female emus as female emus.
There is no specific name for a fixed raccoon.