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An equation, suitable for computer use, based on the ARC feeding system to determine the energy requirements of growing and fattening cattle

Published online by Cambridge University Press:  02 September 2010

C. A. Zulberti  and
J. T. Reid
C. A. Zulberti
Affiliation:
Cornell University, Ithaca, New York, U.S.A.
J. T. Reid
Affiliation:
Cornell University, Ithaca, New York, U.S.A.
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Summary

Based on the Agricultural Research Council's feeding system, equations were developed that allow the calculation of the metabolizable energy requirements for maintenance and weight gain by cattle, separately or combined. A general equation was developed for the straight-forward calculation of the total metabolizable energy requirements of growing and fattening cattle for any combination of body weight, rate of weight gain, age, level of muscular work, and metabolizable energy concentration of the diet. The estimates of energy requirement made by the use of this equation are in excellent agreement with those made by the Agricultural Research Council using an iterative method.

In addition to avoiding the awkward iterative process, the equations proposed are readily adaptable to computer use.

Type
Research Article
Information
Animal Production , Volume 14 , Issue 1 , February 1972 , pp. 17 - 23
Copyright
Copyright © British Society of Animal Science 1972

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References

REFERENCES

Agricultural Research Council. 1965. The Nutrient Requirements of Farm Livestock. No. 2. Ruminants. Agricultural Research Council, London.Google Scholar
Alderman, G. 1966. The development of a new feeding system for ruminants. N.A.A.S. q. Rev. 71: 93–99.Google Scholar
Alderman, G. 1968. Using the A.R.C. metabolizable energy system for ruminant rations. N.A.A.S. q. Rev. 81: 35–42.Google Scholar
Blaxter, K. L. 1967. The Energy Metabolism of Ruminants, pp 317–318. Hutchinson, London.Google Scholar