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Relationships between Level of Protein, Molasses, Trace Minerals and Quality of Hay in Rations for Fattening Cattle

Ohio Agricultural Experiment Station, Wooster

Abstract

A ration of ground ear corn, soybean oil meal and poor quality timothy hay was significantly improved by the addition of trace minerals or molasses when fed to fattening steer calves. Molasses was of no apparent benefit when added to a ration which included trace minerals or good quality mixed hay.

There were highly significant differences in rates of gain of steers fed various amounts of protein. The amount of protein in the ration was of much greater importance when fed with poor quality timothy hay than with good quality mixed hay. Results obtained indicate the presence of some beneficial factor in good quality hay other than protein or trace minerals.

Cane molasses seemed to have some sparing effect on protein requirement when a ration sub-opitmal in protein was fed but not with a ration markedly deficient in protein. This effect was a result of increased feed consumption and not improved feed utilization.