Science & Technology / ArcaMax

High-tech feeders free dairy farmers

High-tech feeders free dairy farmers

FREEPORT, Minn. -- The calves at Rohe Dairy don't bawl when they're hungry. They live together in small groups in a tall, well-ventilated barn here, about 90 miles northwest of Minneapolis, and they eat whenever they please from an automated calf feeding machine. The calf feeders, outfitted with scanners and sophisticated engineering, are the latest high-tech addition...

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