PMID: 3770656Sep 1, 1986Paper

Castration, sex steroids, and heterosexual behavior in adult male laboratory-housed stumptailed macaques (Macaca arctoides)

Hormones and Behavior
P E Schenck, A K Slob

Abstract

The sociosexual behaviors of six stable male-female pairs of stumptailed monkeys were studied in half-hour pair tests. Their performance before and after castration of the males was compared. The effects of replacement therapy with sex steroids on male-female interaction were studied. Also the effects of new females as sexual partners were investigated. Castration caused a significant decrease in sexual behavior. Individual males could display ejaculatory behavior up to about 1 year postcastration. Dihydrotestosterone propionate (75 mg/week/male) alone or in combination with estradiol benzoate (0.9 or 3 mg/week/male) was not effective in restoring sexual behavior to precastration levels in the three castrated males tested. Replacement therapy with testosterone propionate (75 or 10 mg/week/male) was effective in restoring copulatory behavior in half of the castrated males. In some males the introduction of a new female caused an increase in sexual activity, usually when sexual activity with their familiar partner was low. This occurred both in the castration condition and in the steroid treatment period, suggesting, that low activity was caused by low "motivation" and not by the inability to perform.

References

Feb 1, 1978·Hormones and Behavior·C H Phoneix
Sep 1, 1973·Journal of Comparative and Physiological Psychology·C H PhoenixR W Goy
Nov 1, 1973·Journal of Steroid Biochemistry·H L VerjansH J van der Molen
Mar 1, 1968·Proceedings of the National Academy of Sciences of the United States of America·D Kirk

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Citations

Mar 17, 2015·American Journal of Primatology·Matthew J KesslerKenneth P H Pritzker
Oct 1, 1989·Environmental Research·R H Green
Mar 7, 2009·Journal of Vector Ecology : Journal of the Society for Vector Ecology·Richard M DavisCurtis L Fritz
Jan 1, 1993·American Journal of Primatology·Richard P Michael, Doris Zumpe

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