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The publisher's final edited version of this article is available at Horm Behav See other articles in PMC that cite the published article. Abstract In the rat, neonatal administration of testosterone propionate to a castrated male causes masculinization of behavior. However, if an intact male is treated neonatally with testosterone hyper-androgen condition , male sexual behavior in adulthood is disrupted. If so, this would suggest that exposure to supra-physiological levels of androgen during development may result in the development of male-oriented partner preference in the male. To test this idea, male rats were treated either postnatally or prenatally with testosterone, and partner preference and sexual behavior were examined in adulthood. The principal finding of this study was that increased levels of testosterone during early postnatal life, but not prenatal, decreased male sexual behavior and increased the amount of time a male spent with a stimulus male, without affecting the amount of time spent with a stimulus female during partner preference tests. Prenatally, male rats show a testosterone surge that starts on gestation day 16 and lasts through gestation day 20 Ward et al.Watch Free Zadina Hot Porn Zadina Videos and Download it. BBW slut Samantha takes cash in exchange for sex and plays with dick using gigantic tits. Bookmark Cindymovies and comeback tomorrow for new FREE movies!! Links to other Free Movie sites: Gonzo Porn Movies -; Jizzle Cumshot Movies -; Teen. The pups were weaned at this time and housed with same-sex littermates. Piacsek and Hostetter, ; Pollak and Sachs, ; Zadina et al., ), All behavioral testing took place under dim red light illumination in the...the end of the story look at the video above ↑ ↑ ↑
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