Abstract
The sexual behavior of four male and four female adult stumptail macaques was observed in standardized 3-hr heterosexual pair tests. The males achieved from 11 to 19 ejaculations during a single test, thus apparently exceeding any other primate studied under laboratory conditions for the ability to display multiple ejaculatory patterns in relatively short periods of time. The stage of the menstrual cycle was not found to be related to the performance of the male or female, although this variable was not analyzed in depth. Progressive increases in the interejaculatory interval (IEI) occurred for all four males for the initial two to four ejaculations of the series, and then either a plateau or a transient decrease in this measure occurred. Since the data varied considerably for IEI as well as for other quantitative measures of sexual behavior for a given pair, individual data rather than group averages are presented. Blood samples drawn immediately before and after behavioral testing as well as at comparable intervals 1 week prior to behavioral testing were analyzed for testosterone concentration by radioimmunoassay for each male. Serum testosterone values were not found to be influenced by multiple ejaculations. Instead, decreased levels of serum testosterone were encountered on the second blood sample of the day for most males, regardless of whether sexual behavior occurred. The possibility that the decreases were related to stress effects of handling is discussed. Because of this complication, it could be only tentatively concluded that repeated copulation to ejaculation over a 3-hr period did not result in appreciable changes in testosterone levels.
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References
Beach, F. A., and Whalen, R. E. (1959). Effects of ejaculation on sexual behavior in the male rat.J. Comp. Physiol. Psychol. 52: 249–254.
Beach, F. A., Westbrook, W. H., and Clemens, L. G. (1966). Comparisons of the ejaculatory reponse in men and animals.Psychosom. Med. 28: 749–763.
Bertrand, M. (1969).The Behavioral Repertoire of the Stumptail Macaque Karger, Basel.
Bielert, C. F., and Goy, R. W. (1973). Sexual behavior of male rhesus: Effects of repeated ejaculation and partner's cycle stage.Horm. Behav. 4: 109–122.
Blurton Jones, N. G., and Trollope, J. (1968). Social behaviour of stump-tailed macaques in captivity.Primates 9: 365–394.
Chevalier-Skolnikoff, S. (1974). Male-female, female-female, and male-male sexual behavior in the stumptail monkey, with special attention to the female orgasm.Arch. Sex. Behav. 3: 95–116.
Convey, E. M., Bretschneider, E., Hafs, H. D., and Oxender, W. D. (1971). Serum levels of LH, prolactin and growth hormone after ejaculation in bulls.Biol. Reprod. 5: 20–24.
Ekins, R., and Newman, B. (1970). Theoretical aspects of saturation analysis. In Diczfalusy, E., and Diczfalusy, A. (eds.),Steroid Assay by Protein Binding, Second Karolinska Symposium on Research Methods in Reproductive Endocrinology, Bogtrykkeriet Forum, Copenhagen, p. 11.
Fox, C. A., Ismail, A. A., Love, D. M., Kirkham, K. E., and Lorraine, J. A. (1972). Studies on the relationship between plasma testosterone levels and human sexual activity.J. Endocrinol. 52: 51–58.
Grunt, J. A., and Young, W. C. (1953). Consistency of sexual behavior patterns in individual male guinea pigs following castration and androgen therapy.J. Comp. Physiol. Psychol. 46: 138–144.
Haltmeyer, G., and Eik-Nes, K. (1969). Plasma levels of testosterone in male rabbits following copulation.J. Reprod. Fertil. 19: 273–277.
Kanagawa, H., and Hafez, E. S. E. (1973). Copulatory behavior in relation to anatomical characteristics of three macaques.Am. J. Phys. Anthropol. 38: 233–240.
Kanagawa, H., Hafez, E. S. E., Nawar, M. M., and Jaszczak, S. (1972). Patterns of sexual behavior and anatomy of copulatory organs in macaques.Z. Tierpsychol. 31: 449–460.
Katongole, C. B., Naftolin, F., and Short, R. V. (1971). Relations between blood levels of luteinizing hormone and testosterone in bulls, and the effects of sexual stimulation.J. Endocrinol. 50: 457–466.
Lemmon, W. B., and Oakes, E. (1967). “Tieing” between stump-tailed macaques during mating.Lab. Primate Newsletter 6: 14–15.
Mason, J. W., Kenion, C. C., Collins, D. R., Mougey, E. H., Jones, J. A., Driver, G. C., Brady, J. V., and Beer, B. (1968). Urinary testosterone response to 72-hr avoidance sessions in the monkey.Psychosom. Med. 30: 721–732.
McDonald, G. J. (1973). Normal and induced ovulation in simians. In Greep, R. O., Astwood, E. B., and Geiger, S. R. (eds.),Handbook of Physiology, Sect. 7:Endocrinology, Vol. VII, American Physiological Society, Washington. D.C., pp. 403–408.
Nadler, R. D., and Rosenblum, L. A. (1973). Sexual behavior during successive ejaculations in bonnet and pigtail macaques.Am. J. Phys. Anthropol. 38: 217–220.
Purvis, K., and Haynes, N. B. (1972). Environmental factors and testicular hormone production in the male rat.J. Reprod. Fertil. 31: 490–491. (abst.).
Resko, J. A., Malley, A., Begley, D., and Hess, D. L. (1973). Radioimmunoassay of testosterone during fetal development of the rhesus monkey.Endocrinology 93: 156–161.
Robinson, J. A., Scheffler, G., Eisele, S., and Goy, R. W. (in press). The effects of age and season on the sexual behavior and plasma androgen concentration of laboratory-housed male rhesus monkeys (Macaca mulatta).Biol. Reprod.
Rose, R. M., Bourne, P. G., Peo, R. O., Mougey, E. H., Collins, D. R., and Mason, J. W. (1969). Androgen response to stress. II. Excretion of testosterone, epitestosterone, androsterone and eticholanone during basic combat training and under threat of attack.Psychosom. Med. 31: 418–426.
Rose, R. M., Gordon, T. P., and Bernstein, I. S. (1972). Plasma testosterone levels in male rhesus: Influences of sexual and social stimuli.Science 178: 643–645.
Saginor, M., and Horton, R. (1968). Reflext release of gonadotropin and increased plasma testosterone concentrations in male rabbits during copulation.Endocrinology 82: 627.
Stearns, E. L., Winter, J. S. D., and Faiman, C. (1973). Effects of coitus on gonadotropin, prolactin and sex steroid in man.J. Clin. Endocrinol. Metab. 37: 687–691.
Taleisnik, S., Caligaris, L., and Astrada, J. J. (1966). Effects of copulation on the release of pituitary gonadotropins in male and female rats.Endocrinology 79: 49–54.
van der Molen, H. J. (1970). Estimation of androstenedione and testosterone by physicochemical methods. In Eik-Nes, K. B. (ed.),The Androgens of the Testis Dekker, New York, p. 195.
Zumpe, D., and Michael, R. P. (1968). The clutching reaction and orgasm in the female rhesus monkey (Macaca mulatta).J. Endocrinol. 40: 117–123.
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This study was made possible by Grant No. RR00167 from the National Institutes of Health and Grant No. MH21312 from the National Institute of Mental Health.
Publication No. 15-003 of the Wisconsin Regional Primate Research Center.
Postdoctoral trainee in the Endocrinology-Reproductive Physiology Program, University of Wisconsin (Ford Foundation Grant No. 630-0505A)
Predoctoral Fellow supported by the Wisconsin Alumni Research Foundation.
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Goldfoot, D.A., Slob, A.K., Scheffler, G. et al. Multiple ejaculations during prolonged sexual tests and lack of resultant serum testosterone increases in male stumptail macaques (M. arctoides). Arch Sex Behav 4, 547–560 (1975). https://doi.org/10.1007/BF01542133
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DOI: https://doi.org/10.1007/BF01542133