Corn is not a filler, it is a source of carbohydrates (energy) in livestock rations. All this talk of lack of nutrition, being a filler, empty calories is simply not true.
However, corn is NOT a complete feed. The Amino Acid level and ratios are not appropriate for chickens to thrive.
However, corn is NOT a complete feed. The Amino Acid level and ratios are not appropriate for chickens to thrive.