Mixing hay and grain for young calves didn’t help them adapt to a total mixed ration later in life, University of Guelph, Ontario, researchers report.
Starting at birth and continuing for eight weeks, Holstein bull calves were fed chopped hay and concentrate as a mixture or in separate buckets. They also received milk replacer for the first seven weeks. All calves were fed the mixed diet in weeks nine through 11, then were offered a novel TMR in weeks 12 and 13. The TMR contained haylage, corn silage, high-moisture corn and protein supplement....More