WHAT EXACTLY IS THAT BYPRODUCT?
I don’t know about you, but I have to admit that when I heard that farmers feed their cattle byproducts I really didn’t understand what that meant. All I knew was that it didn’t sound good to me, especially if that byproduct came from an ethanol plant! When I hear the word ethanol, I think of gasoline so I was really confused on what the byproduct was. However, while on a tour at the Adams Farm in Sandwich, IL, I was pleasantly surprised to learn what these byproducts actually are and how they were used to feed cattle.
The byproduct from ethanol distilleries is known as distillers grains (often referred to as DDGS). When the corn is used to make ethanol they only use the starch portion of the grain, so the byproduct is the corn germ, oil, and the outer seed shell. The fermentation of the grain in the ethanol production process makes the byproduct a high-protein, high-fat and high-fiber product that cattle like. The farmer uses this much like we put sugar on cereal.
Another byproduct used in feed is from a local Del Monte vegetable plant and a seed corn plant. After the sweet corn is harvested and the kennels are removed, both the cob and the husk are left over. This sweet corn byproduct is mixed with the leftover husks from a seed corn plant and then it ferments in a bunker silo. This fermented mixture is used as part of the cattle’s feed ration.
A third type of byproduct used in cattle feeding comes from a sugar refinery in the form of molasses, which is mixed with a vitamin/mineral supplement that the cattle receive.
All of these byproducts would normally just go to waste, but the cow’s unique digestive system allows a farmer to utilize it for feed in addition to the grass that the cattle graze on in the pasture. With the human population increasing and the amount of land available for grazing decreasing, I think this is a clever way of utilizing the resources that are available.