Publication: Effect of Photoperiod on Time of Blastocyst Implantation in the Rat
Issued Date
1974-01-01
Resource Type
ISSN
15353699
00379727
00379727
Other identifier(s)
2-s2.0-0015976846
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Proceedings of the Society for Experimental Biology and Medicine. Vol.145, No.3 (1974), 894-896
Suggested Citation
Natha Lilit, Vernon L. Yeager Effect of Photoperiod on Time of Blastocyst Implantation in the Rat. Proceedings of the Society for Experimental Biology and Medicine. Vol.145, No.3 (1974), 894-896. doi:10.3181/00379727-145-37918 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/10610
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Title
Effect of Photoperiod on Time of Blastocyst Implantation in the Rat
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Abstract
Rats were exposed to 1, 12, or 24 hr of light per day for two estrous cycles, then were mated. On Days 6, 7, or 8 following the appearance of sperm in the vaginal smear, the animals were anesthetized, injected with Indian ink to mark implantation sites, and killed. The number and diameter of implantation sites were recorded and the uteri weighed. Although short exposure to light had no effect on day of implantation, 11 of 21 animals failed to complete two normal estrous cycles. Animals exposed to continuous light showed delayed implantation. © 1974, SAGE Publications. All rights reserved.