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The composition and energy content of empty body-weight change in mature cattle

Published online by Cambridge University Press:  02 September 2010

I. A. Wright  and
A. J. F. Russel
I. A. Wright
Affiliation:
Hill Farming Research Organisation, Bush Estate, Penicuik, Midlothian EH26 0PY
A. J. F. Russel
Affiliation:
Hill Farming Research Organisation, Bush Estate, Penicuik, Midlothian EH26 0PY
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Abstract

Body-composition data from 73 non-pregnant, non-lactating cows of five genotypes were used to calculate the composition of empty body-weight change in mature cattle. The composition of empty body-weight change was shown to be dependent on empty body weight, containing more fat and less water, protein and ash at higher empty body weights. There were no differences between the genotypes. Between 300 and 600 kg empty body weight the protein concentration in empty body-weight change ranged from 125 to 40 g/kg, whilst application of standard energy values for fat and protein gave equivalent figures for body energy of 22·5 to 32·7 MJ/kg.

Type
Research Article
Information
Animal Production , Volume 39 , Issue 3 , December 1984 , pp. 365 - 369
Copyright
Copyright © British Society of Animal Science 1984

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References

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