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The performance of Finn-Dorset sheep allowed to mate four times in two years

Published online by Cambridge University Press:  02 September 2010

R. B. Land  and
T. H. McClelland
R. B. Land
Affiliation:
A.R.C. Animal Breeding Research Organisation, West Mains Road, Edinburgh EH9 3JQ
T. H. McClelland
Affiliation:
A.R.C. Animal Breeding Research Organisation, West Mains Road, Edinburgh EH9 3JQ
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Summary

Finn-Dorset females were allowed to mate on four occasions during a period of 2 years. Those over 2 years old at the start of the experiment carried an average of three pregnancies giving birth to an average of 5·8 lambs per ewe. The proportion of ewes lambing was reduced from 93 to 32% by the occurrence of lambing 6 months previously, but litter size was unaffected either by this or by lactation at the time of mating. The mean live weight of male lambs reared as twins was 23·5 kg at 12 weeks, and 36·7 kg at slaughter (mean age 19·7 weeks, killing-out percentage 46·4%).

Type
Research Article
Information
Animal Production , Volume 13 , Issue 4 , November 1971 , pp. 637 - 641
Copyright
Copyright © British Society of Animal Science 1971

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References

REFERENCES

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