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A note on birth weight and gestation length of calves from left and from right uterine horns

Published online by Cambridge University Press:  02 September 2010

J. L. Hancock
Affiliation:
A.R.C. Animal Breeding Research Organisation, Edinburgh 9
A. F. Purser
Affiliation:
A.R.C. Animal Breeding Research Organisation, Edinburgh 9
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Extract

Foote, Tyler and Casida (1959) found that the birth weight of Holstein calves from the right horn was significantly heavier than that of calves from the left horn but found no significant effect of side on gestation length. In a further study Foote, Hauser and Casida (1960) found no effect of side of pregnancy on either birth weight or gestation length in an analysis of 128 gestations among Angus and Shorthorn cows. They did find, however, a significant interaction of breed and side of pregnancy on gestation length.

Type
Research Article
Copyright
Copyright © British Society of Animal Science 1964

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References

REFERENCES

Donald, H. P., 1953. A study of variation in twin cattle. I. General description. J. Dairy Res., 20: 355.CrossRefGoogle Scholar
Foote, W. D., Tyler, W. J. & Casida, L. E., 1959. Effect of some genetic and maternal environment variation on birth weight and gestation length in Holstein cattle. J. Dairy Sci., 42: 305.CrossRefGoogle Scholar
Foote, W. D., Hauser, E. R. & Casida, L. E., 1960. Effect of uterine horn pregnant, parity of dam and sex of calf on birth weight and gestation length in Angus and Shorthorn cows. J. Anim. Sci., 19: 470.CrossRefGoogle Scholar
Hancock, J. L., 1962. The clinical features of the reproductive organs of pregnant and non-pregnant cattle. Vet. Rec., 74: 646.Google Scholar