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Changes in live weight and body condition of rams of three breeds throughout the year

Published online by Cambridge University Press:  02 September 2010

A. J. F. Russel ,
A. J. MacDonald ,
C. D. Kerr  and
Brenda Rudd
A. J. F. Russel
Affiliation:
Hill Farming Research Organisation, Bush Estate, Penicuik, Midlothian, EH26 0PH
A. J. MacDonald
Affiliation:
Hill Farming Research Organisation, Bush Estate, Penicuik, Midlothian, EH26 0PH
C. D. Kerr
Affiliation:
Hill Farming Research Organisation, Bush Estate, Penicuik, Midlothian, EH26 0PH
Brenda Rudd
Affiliation:
Hill Farming Research Organisation, Bush Estate, Penicuik, Midlothian, EH26 0PH
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Summary

Measurements of the live weight and body condition of 105 Scottish Blackface, North Country Cheviot and South Country Cheviot male sheep (rams) per year were made at three locations over a period of 2 years.

A distinct cyclical pattern of change in live weight and body condition throughout the year was apparent in all rams. Maximum values recorded in the autumn were followed by rapid and substantial losses throughout the mating period, with recovery of both weight and condition during the spring and summer months. The amplitude of the annual live-weight curve was of the order of 20 kg (22%) and that of body condition was more than 1 unit.

The patterns of annual change in live weight and of inferred change in body composition of rams are compared with those of ewes, and some of the probable effects on production are considered.

Type
Research Article
Information
Animal Production , Volume 23 , Issue 1 , August 1976 , pp. 73 - 80
Copyright
Copyright © British Society of Animal Science 1976

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References

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