J. Anim Sci.
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J. Anim Sci. 1948. 7:127-134.
© 1948 American Society of Animal Science
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Nutrient Utilization by "Compact" and Conventional Type Shorthorn Steers1

L. E. Washburn, Johnny Matsushima, Herman F. Pearson and R. C. Tom2

Colorado Agricultural and Mechanical College,3

Abstract

Nutrient utilization by Shorthorn steers of "compact" and conventional types was investigated by means of digestion balance trials and analysis of standard carcass cuts following slaughter.

Limited data of a preliminary nature showed no appreciable difference between steer types with respect to food capacity per unit of body weight and digestibility of nutrients. Conventional type animals, however, exhibited greater ability than "compacts" to utilize digested dry matter during growth. A rapid decline in efficiency of gain from growth to fattening was observed for both types, each reaching the same level at the time the animals were visually judged finished. Seventy days longer feeding was required to finish the conventional type animals.

All carcasses were graded choice. Conventional type cuts carried more fat, and the compact type carcass had relatively heavier bone.

Footnotes

1 Scientific journal series article No. 228 Colorado Agricultural Experiment Station.

2 R. C. Tom was formerly head of Animal Investigations Section, Colorado Agricultural Experiment Station, now associated with Ralston-Purina Company, St. Louis, Missouri. To Dr. S. S. Wheeler, who became head of the Animal Investigations Section after this work was completed, the authors wish to express their appreciation and gratitude for his interest in the study and for his expert advice during preparation of the manuscript.

3 Animal Investigations Section, Ft. Collins, Colorado.






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Copyright © 1948 by the American Society of Animal Science.