> What animals are fed soy beans, hopefully only pigs and not ruminants (grasses/seeds eaters)?
50% of worlds meat is raised using intensive animal agriculture. liquified soy for the chickens, fishmeal and soymeal for growth and finishing of livestock.
brazilian beef which is practically their biggest export, along with soy, eats it in ridiculous amounts, so long amazon rainforest.
given the amount of energy that is put in the process for producing meat and dairy, it's ridiculously huge compared to what can be done with the land in other way. most efficient production is of chicken flesh and that's already being done on ridiculous scale (about 50 billion of chickens every year in USA - other issues appear then).
IMO raising 60 billion land animals for food, given our current technological, moral and materialistic status is highly irrational, irresponsible, inefficient and ridiculous.