Sexual stimulation of male dairy goats

Price, Edward O.; Smith, Valerie M.; Katz, Larry S.

doi:10.1016/0168-1591(84)90054-6

Cited by 30 publications

(6 citation statements)

References 15 publications

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“…Resultados similares também foram observados por Fraser (1980), Price et al (1985) e Figueiredo (1991). O tempo de reação encontrado neste estudo foi menor que o observado por Roca et al (1991), com tempos de reação de 129 e 106 segundos para as idades de 9 a 10 meses e 21 a 22 meses, respectivamente.…”

Section: Resultsunclassified

“…Para cada dia de coleta, utilizaram-se dois machos de cada raça e de idades similares, alternando-se a ordem de coleta para evitar o efeito da estimulação visual sobre as características seminais e comportamentais (Price et al, 1985;Signoret et al, 1990). O ejaculado foi colhido em tubos graduados, protegidos da luz solar com papel laminado, e acondicionados em isopor.…”

Section: Methodsunclassified

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Parâmetros reprodutivos de bodes submetidos ao manejo de fotoperíodo artificial

Torres¹,

Fonseca

Borges³

et al. 2006

R. Bras. Zootec.

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RESUMO -Objetivou-se com este estudo avaliar parâmetros reprodutivos (comportamento sexual, perímetro escrotal e aspectos quantitativos e qualitativos do sêmen) de bodes (jovens e adultos) das raças Alpina e Saanen submetidos ao manejo de fotoperíodo artificial (16 horas de luz e 8 horas de escuro durante dois meses). Os animais jovens demonstraram maior libido que os adultos, considerando-se o menor tempo de reação. Houve variação na freqüência de manifestação das características comportamentais, tanto entre raças quanto entre idades, e, em todas essas características, foi verificada maior intensidade para os animais adultos. Bodes Alpinos apresentaram menor perímetro escrotal que os bodes Saanen na mesma idade. O perímetro escrotal aumentou de 30,53 cm no período 1 (primeiros 15 dias após o final do manejo com fotoperíodo artificial) para 31,53 cm no período 2 (restante do experimento). Bodes Alpinos produziram sêmen de melhor qualidade que os Saanen de mesmo grupo de idade. Bodes das raças Alpina e Saanen criados nas condições deste experimento são sensíveis (sensibilidade mais pronunciada em animais adultos). Quanto aos parâmetros reprodutivos avaliados, às variações sazonais ao longo do ano.Palavras-chave: comportamento, fotoperíodo, macho caprino, perímetro escrotal, sêmen Reproductive aspects of male goats under an artificial photoperiod exposureABSTRACT -This study aimed to evaluate reproductive characteristics (sexual behavior, scrotal perimeter and qualiquantitative aspects of semen) of young and adults Alpine and Saanen male goats exposed to an artificial photoperiod (16 hours of light and 8 hours of darkness for 2 months). The young animals showed greater libido than the adults, based on the smallest time of reaction. Frequency of manifestation of the behavior traits varied between breeds and ages and higher intensity was observed on adult animals. Scrotal perimeter was smaller for Alpine goats than for Saanen goats at the same age. The scrotal perimeter increased from 30.53 cm in the first period (15 days after the end of the photoperiod exposure) to 31.53 cm in the second period (to the end of the experiment). Quality of semen of Alpine goats was better than that of Saanen goats at the same age. According to the reproductive traits evaluated, Alpine and Saanen goats exposed to similar conditions of this study are sensible to seasonal variation during the year.Key Words: behavior, male goats, photoperiod, scrotal perimeter, semen IntroduçãoAs características da puberdade e do desenvolvimento sexual precoce são critérios importantes na seleção de reprodutores, visto que o início da maturidade sexual pode influenciar a eficiência reprodutiva de um animal.A fertilidade de um rebanho está diretamente relacionada ao número de fêmeas servidas (Machado et al., 1994). As interações macho × fêmea exercem importante função no estímulo e na manutenção do comportamento sexual em ambos os sexos. A característica do comportamento sexual pode ser influenciada por fatores como genética, estação do ano, raça, níveis...

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Section: Resultsunclassified

Section: Methodsunclassified

Parâmetros reprodutivos de bodes submetidos ao manejo de fotoperíodo artificial

Torres¹,

Fonseca

Borges³

et al. 2006

R. Bras. Zootec.

View full text Add to dashboard Cite

show abstract

“…Considering that the latter condition (R treatment) had an effect of its own on sexual performance, it is possible that restraint and(or) viewing the stimulus female contributed to the overall effectiveness of the S treatment [i.e., the effects of restraint and(or) viewing the female were additive with the effects of observing the sexual behaviors of other males]. In a similar study with male dairy goats, Price et al (1984) demonstrated that the effects of the S and W treatments on sexual performance were not additive. Goats given both S and W treatments performed no better than when they received the S treatment alone.…”

Section: Discussionmentioning

confidence: 99%

The Effects of Sexual Stimulation on the Sexual Performance of Hereford Bulls

Mader

Price

1984

Journal of Animal Science

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In the present study, 12 Hereford bulls approximately 22.5 mo of age were individually introduced to a restrained nonestrous stimulus female for 15 to 30 min under four treatment conditions: (1) without prior sexual stimulation and visually isolated from male conspecifics (control), (2) being watched by another male during matings, (3) after observing the copulatory activities of another male and (4) after being restrained in close proximity to a female. During sexual performance tests, an observer recorded the times at which the bulls exhibited ejaculations, mounts without ejaculation, mount attempts, mount intentions, head throws and Flehmen responses. The observer also recorded the percentage of time spent in proximity to the stimulus female and objectively rated the bulls for overall sexual performance and mating efficiency. Relative to the control treatment, the greatest improvement in sexual performance was noted when the bulls had observed the copulatory activities of conspecifics. Sexual performance was improved, albeit to a lesser degree, by being watched by another male and by restraint in the presence of the stimulus female. The advantages of sexual stimulation should be considered when breeding farm animals and when evaluating the sexual performance of males to be used in a breeding program.

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“…Visual stimulation (i.e., watching a copulating pair) was found to enhance sexual performance in male cattle [10], goats [11], horses [12], and pigs [13], but not male sheep [5]. The difference in estrous female behavior between sheep and other domestic ruminant species could explain the ineffectiveness of visual stimulation on ram sexual performance.…”

Section: Discussionmentioning

confidence: 79%

Scent of a Ewe: Transmission of a Social Cue by Conspecifics Affects Sexual Performance in Male Sheep1

Maina

Katz

1999

Biology of Reproduction

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Unlike males from other domestic species, domestic rams (Ovis aries) are not sexually stimulated, as determined by measuring sexual performance, following the opportunity to watch a copulating pair. Previously, we reported that aspects of ram sexual performance were improved when rams interacted with a male conspecific that had mated an estrous ewe. Whether the cues were gender-, estrous state-, or behavior-related was tested in this study. Sexually experienced rams were exposed to male pen mates that had interacted with an estrous ewe, a non-estrous ewe, an estrous ewe with a cloth perineal patch, or a ram, or that had been placed alone in a small pen. The rams were then tested for sexual performance. Rams performed more olfactory investigative behaviors toward pen mates that had interacted with a ewe, regardless of her estrous state, than toward a pen mate that had been exposed to another male. Rams exposed to pen mates that had interacted with a ewe also had shorter postejaculatory and interejaculation intervals and subsequently achieved more ejaculations in standardized sexual performance tests. Results from this experiment confirm that male-male interactions affect sexual performance in male sheep and that olfactory cues likely account for the transfer of information among individuals.

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Sexual stimulation of male dairy goats

Cited by 30 publications

References 15 publications

Parâmetros reprodutivos de bodes submetidos ao manejo de fotoperíodo artificial

Parâmetros reprodutivos de bodes submetidos ao manejo de fotoperíodo artificial

The Effects of Sexual Stimulation on the Sexual Performance of Hereford Bulls

Scent of a Ewe: Transmission of a Social Cue by Conspecifics Affects Sexual Performance in Male Sheep1

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