Sorry, Weldman. Someone should have answered your question before this.
Is your question about commercial emoo-ing? That's not really us. You should be able to find texts online.
I've seen youtube clips of emu farms with apparently high density -- the sorts of ones on which they clip the...
Not sure about taste, aart; but we've seen videos here of emu eggs for scrambled eggs.
And as a wild guess: one emu egg has gotta be eight to ten times the volume of a hen's egg!
Supreme Emu
[Sooky Female One and Sooky Female Two both here at dawn.]