An animal is considered grass-fed, according to the USDA Grass Fed Marketing Claim Standards, when grass and forage are the “feed source consumed for the lifetime of the ruminant animal, with the exception of milk consumed prior to weaning.
Resources
Grassfed and Organic Beef, Production Cost and Profit Potential, Sustainable Agriculture Research and Education (SARE)
Better Understanding of Grassfed vs. Grainfed Beef, University of Minnesota
Direct Marketing Beef, Acreage Living Newsletter
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