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A field trial of Finnish Landrace rams as sires of crossbred ewes

Published online by Cambridge University Press:  02 September 2010

J. D. Barker
J. D. Barker
Affiliation:
ARC Animal Breeding Research Organisation, West Mains Road, Edinburgh EH9 3JQ
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Summary

The relative performances of crossbred ewes sired by Finnish Landrace or by non-Finnish rams were measured in trials at 18 farms which yielded a total of about 2600 ewe lambing records. The dams of the crossbred ewes were Hill breeds (40%), Upland (22%), Long-wool x Hill (20%) and other breed types (18%). The non-Finnish sires were Longwool breeds (35 %), Down and Down crosses (33 %), Upland (22%) and other breeds (10%).

Finnish crossbred ewes were lighter at mating than the average of non-Finnish crossbreds by 10% at 7 months, increasing to 24% at 31 and 43 months, with an average difference of 18% for the first 4 years of life. Over the same period of 4 years Finnish crossbreds had a 27 % higher lambing percentage and 21 % higher weaning percentage than non-Finnish crossbreds.

Lambs born to Finnish crossbreds were, over the 4-year period, 16% lighter for singles and 20 % lighter for multiples at birth, and 11 % for single born and 12% for multiple born at 10 weeks, than those born to non-Finnish crossbreds. But the total litter weight of lamb reared to 10 weeks per 50-kg metabolic ewe weight (at mating) was 16% more for Finnish crossbreds than for non-Finnish crossbreds.

Type
Research Article
Information
Animal Production , Volume 20 , Issue 3 , June 1975 , pp. 371 - 380
Copyright
Copyright © British Society of Animal Science 1975

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References

REFERENCES

Brody, S. 1945. Bioenergetics and Growth. Reinhold Publ Co, New York.Google Scholar
Donald, H. P. and Read, J. L. 1967. The performance of Finnish Landrace sheep in Britain. Anim. Prod. 9: 471–476.Google Scholar
Donald, H. P., Read, J. L. and Russell, W. S. 1968. A comparative trial of crossbred ewes by Finnish Landrace and other sires. Anim. Prod. 10: 413–421.Google Scholar
Maijala, K. 1966. Causes of variation in litter size of Finn-sheep ewes. IXth int. Congr. Anim. Prod. Edinb., Abstracts p. 29.Google Scholar
Meat and Livestock Commission. 1972. Sheep Improvement. Report of the Scientific Study Group, p. 20. Meat and Livestock Commission, Bletchley, Bucks.Google Scholar
Meyer, H. H. and Bradford, G. E. 1973. Reproduction in Targhee and Finnish Landrace xTarghee ewes. J. Anim. Sci. 36: 847–853.CrossRefGoogle ScholarPubMed