As Fed- an expression of feed nutrient content with moisture included. Nutrient content on an “as fed” basis is always lower than on a “dry matter” basis. AF%+DM%=100%
The recent Burger King ad featuring methane spewing cows and singing kids in gas masks was a bridge too far for a lot of people in agriculture. Fortunately, we have science and outstanding advocates making sure the facts are available to counter this sort of misinformation.