Even a large amount of lacto-ovo-vegetarian vs. omnivore will reduce the amount of farm animals (and feed/land use) by a vast amount. offtopic: I disagree with

Even a large amount of lacto-ovo-vegetarian vs. omnivore will reduce the amount of farm animals (and feed/land use) by a vast amount. offtopic: I disagree with the "subspecies" comment from GP - it was a bit inflammatory.