Sexual exhaustion and recovery in the male hamster.

Beach, Frank A.; Rabedeau, Ronald G.

doi:10.1037/h0041896

Cited by 82 publications

(30 citation statements)

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“…The copulation scores of testosterone-implanted males did not rise with each successive test; five out of twelve males which attained ejaculation failed to ejaculate on at least one subsequent test. Inter-test intervals of at least 1 week were such that the effects of performance in the previous test should have been dissipated (Beach & Rabedeau, 1959). This variation in performance, while testosterone is maintained at a high level by slow-release implants, agrees with studies in the rat by Damassa et al (1977).…”

Section: Discussionsupporting

confidence: 71%

Testosterone-dependent non-copulatory behaviour in male hamsters (Mesocricetus auratus)

Steel¹

1982

Journal of Endocrinology

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Male hamsters (intact, castrated or testosterone-treated) were tested for their response to dioestrous and to oestrous females. Response to the dioestrous female was measured in terms of proximity and olfactory investigation; response to the oestrous female was measured in terms of mounting, intromission and ejaculation. Interest in dioestrous females declined in parallel with copulatory behaviour after castration and was restored by implantation of testosterone. Six weeks of testosterone treatment failed to restore copulatory behaviour to pre-castration levels; in contrast, interest in the dioestrous female was fully restored. Different components of the behaviour towards dioestrous female changed at different rates; some were restored within a week of implantation while others took several weeks to reach pre-castration levels. As found previously, the tendencies of the male to approach and to leave the female varied independently.

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Section: Discussionsupporting

confidence: 71%

Testosterone-dependent non-copulatory behaviour in male hamsters (Mesocricetus auratus)

Steel¹

1982

Journal of Endocrinology

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“…If necessary, males were given extra time and/or placed with a different stimulus female to facilitate ejaculation. The week-long period between mating exposures ensured that males would successfully copulate at each mating test without becoming sexually satiated (Arteaga, Motte-Lara, and Velazquez-Moctezuma, 2000; Beach and Rabedeau, 1959). …”

Section: Methodsmentioning

confidence: 99%

Cell proliferation and survival in the mating circuit of adult male hamsters: Effects of testosterone and sexual behavior

Antzoulatos¹,

Magorien²,

Wood³

2008

Hormones and Behavior

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The transient actions of gonadal steroids on the adult brain facilitate social behaviors, including reproduction. In male rodents, testosterone acts in the posterior medial amygdala (MeP) and medial preoptic area (MPOA) to promote mating. Adult neurogenesis occurs in both regions. The current study determined if testosterone and/or sexual behavior promote cell proliferation and survival in MeP and MPOA. Two experiments were conducted using the thymidine analog BrdU. First, gonadintact and castrated male hamsters (n=6/group) were compared 24 hours or 7 weeks after BrdU. In MeP, testosterone stimulated cell proliferation 24 hours after BrdU (intact: 22.8±3.9 cells/mm 2 , castrate: 13.2±1.4cells/mm 2 ). Testosterone did not promote cell proliferation in MPOA. Seven weeks after BrdU, cell survival was sparse in both regions (MeP: 2.5±0.6 and MPOA: 1.7±0.2 cells/mm 2 ), and was not enhanced by testosterone. In Experiment 2, gonad-intact sexually-experienced animals were mated weekly to determine if regular neural activation enhances cell survival 7 weeks after BrdU in MeP and MPOA. Weekly mating failed to increase cell survival in MeP (8.1±1.6 vs. 9.9 ±3.2 cells/mm 2 ) or MPOA (3.9±0.7 vs. 3.4±0.3 cells/mm 2 ). Furthermore, mating at the time of BrdU injection did not stimulate cell proliferation in MeP (8.9±1.7 vs. 8.1±1.6 cells/mm 2 ) or MPOA (3.6 ±0.5 vs. 3.9±0.7 cells/mm 2 ). Taken together, our results demonstrate a limited capacity for neurogenesis in the mating circuitry. Specifically, cell proliferation in MeP and MPOA are differentially influenced by testosterone, and the birth and survival of new cells in either region are not enhanced by reproductive activity.

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“…This pattern remained unchanged between the first and last day of testing, a finding suggesting that the mechanisms regulating the ongoing display of sexual activity operate in the same way regardless of the male's sexual satiety state. Data in other species show common parameters indicative of sexual satiety: thus, in hamsters copulation ad libitum causes a steady increase in the lengths of the pauses that follow successive ejaculations (Beach and Rabedeau, 1959). Male guinea pigs are somewhat different as, once a male ejaculates, he does not usually reinitiate copulation within the next hour (Young and Grunt, 1951) but, as in rats or rabbits, male guinea pigs can engage in a 2 nd copulation if a new female is presented (Grunt and Young, 1952;Hull and Domínguez, 2007).…”

Section: Discussionmentioning

confidence: 99%

Analysis of sexual behaviour in male rabbits across successive tests leading to sexual exhaustion

et al. 2012

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AbstrAct:Various parameters of sexual behaviour were studied in 10 male rabbits daily tested with sexually receptive females (ovariectomized, given estradiol benzoate s.c. 5 µg/d). The aim of this study was to analyse rabbit sexual behaviour during successive tests leading to sexual exhaustion. We allowed copulation ad libitum and determined if sexual satiety was reached within 1 d and sexual exhaustion across several days. The pair was allowed to copulate freely until the male failed to show sexual interest in that female for 30 min. The female was then removed and replaced by another; this procedure was repeated using as many does as needed, until the male showed no interest in any female for 2 h. Scent-marking (chinning) was also recorded, before and after the copulation test. This whole procedure was repeated daily until the male showed no sexual behaviour at all on a given day. Within a test, copulation ad libitum led to a gradual increase in the time interval between successive mounts and ejaculations, regardless of the day of testing. Such increments predicted that the buck was reaching sexual satiety. The "miss" rate (i.e., the proportion of mounts that did not culminate in ejaculation) significantly increased from a median of 25 on the 1 st d to 55 on the last day of testing. The mean time to reach copulatory inactivity decreased from 4 h on the 1 st d to 1 h on the last day. The total number of ejaculations within a test decreased from an average of 22 to 6 (first vs. last day, respectively) and the number of chin marks was reduced by 69% compared with pre-mating values, regardless of the day of testing. All bucks eventually stopped copulating after a variable number of days (range=2-15 d). We concluded that, following copulation ad libitum with several females, male rabbits reach sexual satiety (i.e., they are unable to continue copulating on the same day) and, after several days, they also attain sexual exhaustion, a state in which copulation is totally arrested for at least 24 h. Some behavioural parameters can be used as reliable predictors that a buck is approaching sexual satiety and sexual exhaustion.

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Sexual exhaustion and recovery in the male hamster.

Cited by 82 publications

References 1 publication

Testosterone-dependent non-copulatory behaviour in male hamsters (Mesocricetus auratus)

Testosterone-dependent non-copulatory behaviour in male hamsters (Mesocricetus auratus)

Cell proliferation and survival in the mating circuit of adult male hamsters: Effects of testosterone and sexual behavior

Analysis of sexual behaviour in male rabbits across successive tests leading to sexual exhaustion

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