It comes in 40 lb bags and is more expensive than regular feed. It is a total balanced ration including vitamins and probiotics. Where it stands out from other feeds, according to the company representative that spoke to our local poultry club, is that the grains used in the feed are tested for microtoxins, and if they are found to be over a certain very low level, the grain is rejected. It comes in a small pellet which works well for both bantams and large fowl ( I have both). It is not advertised as a breeder ration, but hatchability of fertile eggs has been very good so far. On the downside, I am paying almost $16 per 40 lb bag.