Ohio State University Extension Bulletin

Research and Reviews: Beef and Sheep 2001

Special Circular 181-01


Altering the Proportion of Corn Silage in Diets of Feedlot Steers Fed to Achieve Stepwise Increases in Growth

Implications

Feeding roughage based diets early in the feeding period may be an economically viable option when grain prices are high. However, although some compensatory gain occurred feed efficiency was reduced when a high proportion of corn silage was used early in the feeding period. Compensatory gains (in response to increased energy intake) may be greater for prescription fed steers than for those observed in steers fed decreasing percentages of corn silage-based diets.

References

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DiCostanza, A., C.M. Zhender, J.M. Cassady, H. Chester-Jones, D. Ziegler, and R. Greenwald. 1998. Effects of corn silage hybrid or dietary proportion on yearling steer performance. Minnesota Cattle Feeder Report B-451:1-5.

Glimp, H. A., S.P. Hart, and D. Vontungeln. 1989. Effect of altering nutrient density (concentrate to roughage ratio) and restricting energy intake on rate, efficiency and composition of growing lambs. J. Anim. Sci. 67:865-871.

Goering, H.K., and P.J. Van Soest. 1970. Forage fiber analyses (apparatus, reagents, procedures, and some applications). Agric. Handbook No. 379. ARS, USDA, Washington, DC.

Gunter, S.A., M.L. Galyean, and K.J. Malcolm-Callis. 1998. Factors influencing the performance of feedlot steers limit-fed high-concentrate diets. Prof. Anim. Sci. 12:167-175.

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Loerch, S.C. 1990. Effects of feeding growing cattle high-concentrate diets at a restricted intake on feedlot performance. J. Anim. Sci. 68:3086-3095.

Loerch¸ S.C., and F.L. Fluharty. 1998. Effects of programming intake on performance and carcass characteristics of feedlot cattle. J. Anim. Sci. 76:371-377.

NRC. 1984. Nutrient Requirements of Beef Cattle (6th Ed.). National Academy Press, Washington, DC.

Rompala, R.E., T.A. Hoagland, and J.A. Meister. 1988. Effect of dietary bulk on organ mass, fasting heat production and metabolism of the small and large intestines in sheep. J. Nutr. 118:1553-1557.

Rossi, J. E., S.C. Loerch, and F.L. Fluharty. 2000. Effects of crude protein concentration in diets of feedlot steers fed to achieve step-wise increases in rate of gain. Research and Reviews. Special Circular 181. pgs. 76-82.

SAS. 1998. SAS/STAT® User's Guide (Release 7.1). SAS Inst. Inc., Cary, NC.

Smith, S. B., R. L. Prior, C. L. Ferrell, and H. J. Mersmann. 1984. Interrelationships among diet, age, fat deposition and lipid metabolism in growing steers. J. Nutr. 114:153-162.


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