We shipped 50 bulls from MN to Texas about 1,100 miles (18 hours) and fed Hydro-Lac four days prior to shipping at a ½ lb. rate. The bulls, averaging 2,173 lbs. dressed out at 56-58%. In comparison, we shipped two bulls only 100 miles (2 hours) with no Hydro-Lac, and they dressed out at 52%. We were impressed!