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Science 9 December 1977:
Vol. 198. no. 4321, pp. 1009 - 1015
DOI: 10.1126/science.198.4321.1009
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Articles

Beef Production Efficiency

Allen Trenkle 1 and R. L. Willham 1

1 Professors of animal science, Iowa State University, Ames 50011

In the production of high quality protein, feed grains will continue to be used to finish cattle for market as long as economics dictates. Production systems could be developed that would make ruminant animals less competitive with humans for feed grains, but the costs of instituting such programs would be prohibitive. Sufficient genetic variation exists either between or within breeds for the cattle population to be adapted to new management programs and for current methods of beef production to be significantly improved.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
A comparison of progestin-based protocols to synchronize estrus in postpartum beef cows.
J. E. Stegner, F. N. Kojima, M. R. Ellersieck, M. C. Lucy, M. F. Smith, and D. J. Patterson (2004)
J Anim Sci 82, 1016-1021
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