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Survival of spermatozoa in the genital tract of the mare

Published online by Cambridge University Press:  27 March 2009

F. T. Day
F. T. Day
Affiliation:
School of Agriculture, Cambridge
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Extract

1. With insemination of approximately 2 billion sperms, pregnancy resulted from inseminations up to 6 days prior to ovulation, but not when inseminations were made earlier, or on the day after ovulation.

2. Ovulation was induced in one mare by injecting pregnancy urine extract when a large follicle was present in one ovary, although the mare remained anoestrous, as judged by vaginal and cervical secretions. This mare became pregnant from an insemination 2 days prior to the induced ovulation.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 32 , Issue 1 , January 1942 , pp. 108 - 111
Copyright
Copyright © Cambridge University Press 1942

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References

REFERENCES

Day, F. T. (1940). J. agric. Sci. 30, 244.CrossRefGoogle Scholar
Hammond, J. (1938). Yorks. Agric. Soc. J. 95, 11.Google Scholar