Hi folks. We just got our little girls last week and we are using Brown's chick starter. The chicks are all doing great, but I noticed that it makes a big deal on the package about it being "animal protein" free, and I was just wondering, since I know protein is KEY to development, and that chickens are most certainly omnivores, why this would matter? Is it marketing to vegetarian chicken owners, or is there a reason you don;t want chicks to have animal protein? Will they get enough protein this way? Thanks.