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Polyspermy of pig ova

Published online by Cambridge University Press:  01 September 1959

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

Of 168 pronucleate ova recovered from sows killed at varying intervals after mating (0, 24, 30 and 48 hours), 20 showed more than 2 pronuclei; 19 of these were recovered from sows in which mating was delayed until 30 to 48 hours after the onset of heat. Evidence is presented that polyspermic fertilisation is responsible for the appearance of ova with more than 2 pronuclei. It is concluded that delayed mating increases the frequency of polyspermic fertilisation in pigs and this might be a source of embryonic mortality in pigs inseminated artificially.

Type
Research Article
Information
Animal Production , Volume 1 , Issue 2 , September 1959 , pp. 103 - 106
Copyright
Copyright © British Society of Animal Science 1959

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References

REFERENCES

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