Word: fallopian
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Dates: during 1930-1939
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...first allowed to mate with a sterile buck. After removal the ova, examined to make sure they were not fertilized, were placed in a culture flask for 20 min. with the healthy sperm of a non-agouti black buck. Finally they were implanted in the right Fallopian tube of a New Zealand Red doe which had been rendered pseudopregnant by a sterile mating. The dark grey color of the bunnies, born 33 days later, was proof they did not owe their existence to an accidental fertilization of their red foster-mother...
...Surgically, sterilization is simple. In males it is achieved by cutting the spermatic cord, in females by cutting the Fallopian tubes. Frequently X-ray is used to atrophy the ovaries...