Homosexual behavior in male ruminants. Review
In several male ruminants, including both, domestic and wild species, it has been reported the presence of homosexualbehaviour between males. The aim of this review was to summarize the information about neuroendocrinologicaldifferences between homo and heterosexual individuals, and the relationship between homosexual behaviour andsexual steroid concentration. Moreover, we present information that link homosexual behavior with social dominance,age, social environment during the developmental period, and environment disturbances. Therefore, we includeinformation about other physiologic aspects, such as reproductive seasonality, including unpublished informationabout seasonal changes in domestic rams and captive male Iberian ibex, and the relationship between seasonalchanges in testosterone and behaviour. Other topic discussed is the “buller syndrome”, which is commonly observedin steers, in which is observed that some males are repeatedly mounted by others males. In brief, homosexualbehaviour in male ruminants is multietiologic, and some aspects are understudied, so the interpretation may becautiously considered before deep studies are developed.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias
2014
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| Online Access: | https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/3218 |
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| Summary: | In several male ruminants, including both, domestic and wild species, it has been reported the presence of homosexualbehaviour between males. The aim of this review was to summarize the information about neuroendocrinologicaldifferences between homo and heterosexual individuals, and the relationship between homosexual behaviour andsexual steroid concentration. Moreover, we present information that link homosexual behavior with social dominance,age, social environment during the developmental period, and environment disturbances. Therefore, we includeinformation about other physiologic aspects, such as reproductive seasonality, including unpublished informationabout seasonal changes in domestic rams and captive male Iberian ibex, and the relationship between seasonalchanges in testosterone and behaviour. Other topic discussed is the “buller syndrome”, which is commonly observedin steers, in which is observed that some males are repeatedly mounted by others males. In brief, homosexualbehaviour in male ruminants is multietiologic, and some aspects are understudied, so the interpretation may becautiously considered before deep studies are developed. |
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