htown1980: My second point would be that, in the sense that meat eaters regularly kill a significant part of a species every year, I would say that genocide is not a terrible analogy. Now meat eaters might say, its acceptable to kill a significant part of that species every year because it tastes nice and animals don't have rights, or whatever, but in my view that doesn't take away from the fact that they choose to be involved in it.
Potzato: The genocide means to eradicate in my understanding. And nothing else (getting the possession of the deceased is a "by product"), this is ideological.
Killing animals is for feeding. While I agree that the industrial process of killing animals is very far from good on many accounts, the eradication is completely out of question too. These are two major reasons as to why you can't compare eating meat to a genocide.
So if you kill an entire group of people with the intention of eating them (because, I don't know, chinese people taste nice), its not genocide?
I think the comparison is a bad one because genocide, by definition, can only relate to humans.
From wiki (and this is actually accurate this time) the internationally recognised definition of genocide is:
...any of the following acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group, as such:
(a) Killing members of the group;
(b) Causing serious bodily or mental harm to members of the group;
(c) Deliberately inflicting on the group conditions of life calculated to bring about its physical destruction in whole or in part;
(d) Imposing measures intended to prevent births within the group;
(e) Forcibly transferring children of the group to another group.
Like all legal definitions, its ambiguous, particularly the "in whole or in part" part. There are many arguments in my country whether the forceable removal of "mixed-race" indigenous children from their parents with the alleged intention of educating and assisting them amounted to genocide.
Regardless, I would say a reasonable argument could be put that, for example, measures are imposed to prevent the birth of chickens, or that members of a group of cows are killed, etc. The key is that genocide can refer to the destruction of (a group of people) in whole or in part. Note the definition doesn't refer to the intent to destroy being the sole intent. I don't really see how, killing a number of animals for the purpose of eating them, is not destroying them.
Having said that, I personally don't think the analogy is perfect.