Hey newlifeprojects, great question! Grains are grasses, grasses are plants too. The chickens at Leafhopper Farm are pasture raised, meaning on top of a nutritionally balanced feed (which includes the grains) the chickens are in a movable paddock system rotating through fresh leafy greens from sun up to sun down. You could call that "grass fed" just like your beef.
RE: Permaculture - How to Open a Grain Bag