Pietras, R J Hormonal influences on odor detection in rats: changes associated with the estrous cycle, pseudopregnancy, ovariectomy, and administration of testosterone propionate. [electronic resource] - Physiology & behavior Mar 1974 - 475-91 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0031-9384 Standard No.: 10.1016/0031-9384(74)90125-5 doi Subjects--Topical Terms: Androgens--physiologyAnimalsBehavior, AnimalCastrationConditioning, OperantDiscrimination, Psychological--drug effectsDose-Response Relationship, DrugEstradiol--pharmacologyEstrogens--physiologyEstrusFemaleMaleModels, BiologicalOvary--physiologyOvulationPregnancyProgesterone--physiologyPseudopregnancy--drug effectsRabbitsRatsReaction TimeSmell--drug effectsTestosterone--administration & dosageVaginal Smears