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Science 14 September 1962:
Vol. 137. no. 3533, pp. 860 - 861
DOI: 10.1126/science.137.3533.860
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Articles

Neural Timing of Ovulation in Immature Rats

William F. Strauss 1 and Roland K. Meyer 1

1 Department of Zoology, University of Wisconsin, Madison 6

Treated with Gonadotrophin Thirty-two-day-old female rats, injected two days previously with gonadotrophin from pregnant mares' serum, were given barbiturate at different times during the afternoon to determine whether the ovulation that would occur the next day could be blocked. The results indicate that ovulation depends upon release of pituitary ovulating hormone during a"critical period" between 2 and 4 P.M.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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V. Ramirez, D Dluzen, and D Lin (1980)
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Science. ISSN 0036-8075 (print), 1095-9203 (online)