Effects of delayed mating on preimplantation embryos in spontaneously ovulated mice
Article first published online: 17 FEB 2005
Copyright © 1988 Alan R. Liss, Inc.
Volume 19, Issue 4, pages 381–385, April 1988
How to Cite
Sakai, N. and Endo, A. (1988), Effects of delayed mating on preimplantation embryos in spontaneously ovulated mice. Gamete Res., 19: 381–385. doi: 10.1002/mrd.1120190409
- Issue published online: 17 FEB 2005
- Article first published online: 17 FEB 2005
- Manuscript Accepted: 17 DEC 1987
- Manuscript Received: 28 SEP 1987
- overnight mating;
- short-period mating;
- retarded embryos;
- degenerated embryos;
- spontaneous ovulation
The effects of delayed mating on mouse preimplantation embryos (78 ± 1 hours) were studied by setting up different mating periods in relation to the estimated time of spontaneous ovulation. Copulation occurred even in the late morning and early afternoon after the night of spontaneous ovulation. However, females mated in the early afternoon had no viable embryos at the time of laparotomy. Although embryonic development was not affected in the groups mated 6 or 10 hours after estimated ovulation, the percentage of degenerated embryos was increased in these groups. These results suggest that prolonged intervals between the estimated time of ovulation and mating have some deleterious effects on preimplantation embryos.