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A note on correction factors for lamb birth and weaning weights from sheep recording under field conditions

Published online by Cambridge University Press:  02 September 2010

K. J. Robertson
K. J. Robertson
Affiliation:
The Scottish Milk Marketing Board, Underwood Road, Paisley, Renfrewshire
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Summary

A small scale ewe-recording scheme, involving a minimum of weighing, is described. Results for two years and two breeds have been analysed to produce correction factors in each year for birth type, sex and age of dam in respect of birth weights and weights at 84 days of age derived with and without reference to birth weight. The results suggest that breed differences in correction factors may exist and that differences between years in correction factors may be of minor importance. In standardizing weaning weights to a constant age the influence of birth weight appeared to be relatively unimportant.

Type
Research Article
Information
Animal Production , Volume 11 , Issue 2 , May 1969 , pp. 267 - 270
Copyright
Copyright © British Society of Animal Science 1969

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References

REFERENCES

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