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Distillers Byproduct Boosts Bad-Hay Nutrients

August 23, 2010

Byproduct feeds from ethanol plants offer beef herd owners a way to supplement bad hay being baled for winter feed this year.

“Distillers grains can pick up the slack when the hay quality falls short,” said Chris Zumbrunnen, MU Extension regional livestock specialist, who recently spoke at field days in Missouri.

“There is a tremendous amount of high quality product available,” Zumbrunnen said. There will also be plenty of poor quality hay that was harvested late and rained on during haymaking.

Dried distillers grain (DDG) offers around 30% protein, lots of fat and lots of energy, Zumbrunnen said. There are several products available that require different handling methods.

The dried byproduct, which has only 10% moisture, handles and stores easily. However, precautions must be taken in storage. “It can draw moisture and become caked,” Zumbrunnen said. “If you put it in a bin, you might have a hard time getting it out.”

The wet product, with 65% moisture, is less expensive, however Zumbrunnen added a caution. “It’s tough to store and do anything with. You can’t stack it, as it will spread out unless contained.”

A new modified wet distillers grain offered by some ethanol plants allows more flexibility and ease in feeding. The modified product is dried down to 50% moisture. It retains its shape and won’t blow away like dry product.

”The modified wet product can be fed on the ground or on top of unrolled baled hay. It stays in place,” Zumbrunnen said “Those old cows love it.”

The modified product is easier to store and keep than other products. But, take precautions to transport it. “You’ll want to haul it in a dump trailer, not a hopper-bottom wagon. It won’t flow out.”

Store the modified product on a flat surface and then cover it with 8 mil plastic sheet. After the sheeting is laid over the pile a front loader is used to dump limestone on the side of the pile. When the lime flows down the side of the plastic covered mound it seals the bottom. Under an airtight seal, the product can be kept all winter.

“We kept some at the FSRC until April this year,” he said. “There will be some colored mold around the bottom edge, but tests at the vet school indicate that mold is not toxic.”

Researchers at the University of Nebraska developed a way to store and feed the wet byproduct. They mixed it with poor quality hay to give it body. The best storage is in a bunker-type silo where it can be packed down.

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