SUPERFETATION IN THE ALBINO RAT
- 30 April 1934
- journal article
- research article
- Published by American Physiological Society in American Journal of Physiology-Legacy Content
- Vol. 108 (2) , 322-323
- https://doi.org/10.1152/ajplegacy.1934.108.2.322
Abstract
During sexual life the non-pregnant albino rat exhibits marked rhythmic increases in spontaneous activity which are synchronous with estruation. During gestation these spurts of activity are usually absent. Occasionally, however, an estrual-like peak was found which occurred between the 12th and 15th day of gestation and indicated that estruation had taken place. This assumption is substantiated by 2 cases of superfetation which show that ovulation, fertilization, and implantation occurred about the 15th day of gestation.This publication has 0 references indexed in Scilit: