Fertilization of the Rat Egg
β Scribed by AUSTIN, C. R.
- Book ID
- 109564098
- Publisher
- Nature Publishing Group
- Year
- 1950
- Tongue
- English
- Weight
- 120 KB
- Volume
- 166
- Category
- Article
- ISSN
- 0028-0836
- DOI
- 10.1038/166407b0
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## Abstract Both epididymal and ejaculated spermatozoa give usable rates of fertilization of superovulated oocytes in vitro. The epididymal sperm gave higher rates, but ejaculated sperm were preferred because intraβdonor variation was lower than interβdonor variation. A selected population of 14 ma
## Abstract In vitro fertilization of rat and mouse eggs by ejaculated or epididymal spermatozoa in chemically defined media was studied. Penetration rates by ejaculated sperm was very low (0 to 8%) in the rat, but 11 to 41% of eggs were penetrated by ejaculated sperm in the mouse. The optimal conc