Hormonal substrate of estrous odor preference in beagles

摘要: Abstract The biological substrate and functional role played by vaginal secretions in the mediation of sociosexual behavior beagle was assessed. effect presence androgen during development and/or adulthood on display a behavioral preference for estrous measured. Six groups adult, purebred beagles were tested behavior. Treatment constitution several as follows: females whose mothers injected with testosterone propionate (TP) 10 days second trimester; implanted pellet 1–3 postpartum; TP pregnancy who also received ovariohysterectomized but given no treatment development; males castrated adulthood; and, untreated gonadally-intact males. All animals except intact first without then additional testing. During tests conducted prior to exogenous testing, only showed significant secretions. After greater In addition, treated before exposed after birth displayed It is concluded that odor sexually dimorphic pattern which depends jointly upon developmental concurrent androgenic stimulation its expression.