[xoxoxoBruce]

Didn't pick up on steer? Legally, just twice.

But as far as the pig goes, sacrificing a pig or something to the "gods" is very common everywhere. It's only natural to pick the biggest (best) for that and of course the person that raised it would be honored also. As people become wealthier they can feed the critter better and breed them better until the beast gets grotesque. But the tradition continues because it ties the generations together. It honors not only the gods but ancestors, part of the culture. I really see no harm in that the pig was not a pet, but born and raised to be eaten.
I think you'll find that it's predominately modern well fed cultures that this animal rights/welfare attitude exists. Elsewhere animals were food or tools except the occasional pet.
My grandfather didn't abuse his horses, not because he thought they were great noble beasts but for the same reason I don't take a hammer to my cars. They are valuable and I need them.
Bull fighting......I don't approve, but I understand.