Phenotype and maturation rate of oocytes of chimaeric mice produced from two strains that differ in oocyte quality.

Abstract excerpt

The oocytes of females from the inbred mouse strains KE (albino) and CBA (agouti) differ in the following characteristics: the appearance of the cytoplasm is clear in KE but granular in CBA; the cumulus oophorus dispersion with hyaluronidase is quick in KE but slow in CBA; dissolution of the zona pellucida with a proteolytic enzyme is slow in KE but quick in CBA; and the maturation stage at the time of ovulation...

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