1990 - Volume #14, Issue #3, Page #27
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Hollow Round Bales
Two Wisconsin researchers have discovered a method to make holes through the center of big round bales by wrapping hay around a length of 8-in. dia. PVC pipe inserted into a round bale chamber. They pull the pipe back out after the bale is formed, according to a recent report in Hay & Forage Grower magazine.Richard Straub at the University of Wisconsin and Richard Koegle at the U.S. Dairy Forage Research Center use the hollow core method to bale hay at 30 to 35 percent moisture. Then they dry the bales down to 17 percent by forcing air down the hollow center and exhausting it out the sides. The bales are dried on pallets. End caps are placed over one end and air is forced into the open end. Drying takes 48 to 72 hrs.
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