Abstract
Laparoscopic observations of ovaries before and after ovulation were made in 74 cycles in 39 Japanese monkeys (Macaca fuscata). Lengths of menstrual cycles, the follicular phase and the luteal phase in these animals were 25.3±2.8 days, 13.2±1.4 days, and 12.8±2.3 days, respectively. Ovarian morphology during the menstrual cycle in the Japanese monkey agreed in some features and disagreed in others, with findings inMacaca mulatta andMacaca fascicularis reported in the previous papers using laparotomy or laparoscopy. Follicular appearance before and after ovulation varied so considerably from ovary to ovary that it was hard to predict the accurate ovulation time or to estimate the precise age of corpus luteum by means of observations on the morphological appearance only. However, diagnosis of whether ovulation had already occurred or not, was possible when careful observations were made, although some ovaries without haemorrhagic and luteinized appearance after ovulation were very similar to pre-ovulatory follicle. Clear luteinization was detected without fail in many cases three days after ovulation.
Similar content being viewed by others
References
Ando, A., H. Nigi, T. Tanaka, &N. Ohsawa, 1976. Routine measurement of urinary total estrogens of the female Japanese monkey as an index for estimating the time of ovulation.Primates, 17: 89–94.
Betteridge, K. J., W. A. Kelly, &J. H. Marston, 1970. Morphology of the rhesus monkey ovary near the time of ovulation.J. Reprod. Fertil., 22: 453–459.
Blandau, R. J., 1955. Ovulation in the living albino rat.Fertil. Steril., 6: 391–400.
Dukelow, W. R., 1975. The morphology of follicular development and ovulation in non-human primates.J. Reprod. Fertil., Suppl., 22: 23–51.
————,S. J. Jarosz, D. A. Jewett, &R. M. Harrison, 1971. Laparoscopic examination of the ovaries in goats and primates.Lab. Anim. Sci., 21: 594–597.
————,D. A. Jewett, &J. M. R. Rawson, 1973. Follicular development and ovulation inMacaca fascicularis, Saimiri sciureus andGalago senegalensis.Amer. J. phys. Anthrop., 38: 207–209.
Harrison, R. M. &W. R. Dukelow, 1974. Morphological changes in theSaimiri sciureus ovarian follicles as detected by laparoscopy.Primates, 15: 305–309.
————,J. M. Rawson, &W. R. Dukelow, 1974. Megestrol acetate. II. Effects on ovulation in nonhuman primates as determined by laparoscopy.Fertil. Steril., 25: 51–56.
Hartman, C. G., 1939. Studies on reproduction in the monkey and their bearing on gynaecology and anthropology.Endocrinology, 25: 670–682.
Jewett, D. A. &W. R. Dukelow, 1971a. Follicular morphology inMacaca fascicularis.Folia primat., 16: 216–220.
———— & ————, 1971b. Laparoscopy and precise mating techniques to determine gestation length inMacaca fascicularis.Lab. Primat. Newsletter, 10(2): 16–17.
———— & ————, 1972. Serial observations of follicular morphology near ovulation inMacaca fascicularis.J. Reprod. Fertil., 31: 287–290.
———— & ————, 1973. Follicular observation and laparoscopic aspiration techniques inMacaca fascicularis.J. med. Primat., 2: 108–113.
Johansson, E. D. B., J. D. Neil, &E. Knobil, 1968. Periovulatory progesterone concentration in the peripheral plasma of the rhesus monkey with a methodologic note on the detection of ovulation.Endocrinology, 82: 143–148.
Nigi, H., 1975. Menstrual cycle and some other related aspects of Japanese monkeys (Macaca fuscata).Primates, 16: 207–216.
Rawson, J. M. R. &W. R. Dukelow, 1973a. Observation of ovulation inMacaca fascicularis.J. Reprod. Fertil., 34: 187–190.
———— & ————, 1973b. Effect of laparoscopy and anesthesia on ovulation, conception, gestation and lactation in aMacaca fascicularis.Lab. Primat. Newsletter, 12(2): 4–5.
Author information
Authors and Affiliations
Additional information
This study was supported by the Scientific Research Fund of the Ministry of Education of Japan (No. 856165).
About this article
Cite this article
Nigi, H. Laparoscopic observations of ovaries before and after ovulation in the Japanese monkey (Macaca fuscata). Primates 18, 243–259 (1977). https://doi.org/10.1007/BF02383103
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02383103