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Intensive beef production 2. The effect of three, twelve or sixteen week weaning on the performance of Aberdeen-Angus crossbred cattle

Published online by Cambridge University Press:  02 September 2010

J. N. Aitken ,
T. R. Preston ,
F. G. Whitelaw ,
A. MacDearmid  and
Euphemia P. Charleson
J. N. Aitken
Affiliation:
Rowett Research Institute, Bucksbum, Aberdeen
T. R. Preston
Affiliation:
Rowett Research Institute, Bucksbum, Aberdeen
F. G. Whitelaw
Affiliation:
Rowett Research Institute, Bucksbum, Aberdeen
A. MacDearmid
Affiliation:
Rowett Research Institute, Bucksbum, Aberdeen
Euphemia P. Charleson
Affiliation:
Rowett Research Institute, Bucksbum, Aberdeen
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Summary

1. Some characteristics are described of 10 steer progeny of a Friesian bull which is known to have carried the factor for muscular hypertrophy.

2. On average these steers had a higher birth weight, lighter hide and liver, smaller feet and cannon bones, a lower percentage of fat and higher percentage of lean in the 10th rib joint, than the progeny of three other Friesian bulls reared at the same time and under the same conditions.

3. No one character was an adequate criterion for separating affected from normal progeny. It appears possible that the bull concerned was homozygous for the double muscling gene, and that all his progeny showed one or more symptoms of the condition.

Type
Research Article
Information
Animal Production , Volume 5 , Issue 1 , February 1963 , pp. 53 - 56
Copyright
Copyright © British Society of Animal Science 1963

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References

REFERENCES

Preston, T. R., Whitelaw, F. G., Attken, J. N., MacDearmid, A. & Charleson, E. B., 1963. Intensive beef production. I. Performance of cattle given complete ground diets. Anim. Prod., 5: 47.Google Scholar
Roy, J. H. B., Shillam, K. W. G., Hawkins, G. M. & Lang, J. M., 1958. The milk requirements of the newborn calf. Brit. J. Nutr., 12: 123.CrossRefGoogle ScholarPubMed
Preston, T. R., 1956. Dry feeding of calves. Agriculture, Lond., 62: 462.Google Scholar