ELECCIÓN PRECOPULATORIA Y CONDUCTA COPULATORIA EN CERDOS YORKSHIRE, YORKLANDRACE Y LANDRACE
It is well known that male wild boars (Sus scrofa) are usually solitary. However, during the mating season, they compete for females which may bias their mate choice toward some of the males breed. In order to determinate whether or not a precopulatory choice occurs in captivity, 18 yorklandrace mul...
| Autori principali: | , , , , |
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| Natura: | Online |
| Lingua: | spa |
| Pubblicazione: |
Instituto de Ecología, A.C.
2006
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| Accesso online: | https://azm.ojs.inecol.mx/index.php/azm/article/view/1960 |
| _version_ | 1799770333715103744 |
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| author | Aguilera-Reyes, Ulises García López, Georgina I. Zavala Páramo, Guadalupe Monroy Vilchis, Octavio Pescador Salas, Nazario |
| author_facet | Aguilera-Reyes, Ulises García López, Georgina I. Zavala Páramo, Guadalupe Monroy Vilchis, Octavio Pescador Salas, Nazario |
| author_sort | Aguilera-Reyes, Ulises |
| collection | AZM |
| description | It is well known that male wild boars (Sus scrofa) are usually solitary. However, during the mating season, they compete for females which may bias their mate choice toward some of the males breed. In order to determinate whether or not a precopulatory choice occurs in captivity, 18 yorklandrace multiparous females (Y/N) were mated with three males belonging to three breeds: yorkshire (Y/Y), yorklandrace (Y/N), landrace (N/N). Copulation preference, precopulatory and copulatory behaviors, as well as the female-female interactions were registered. During the precopulatory phase, in terms of time, the Y/N male received more female attention (53.7%) than the other males. Additionally, Y/Y male more frequently displayed behaviors as "teeth chattering" (83.33%), "vocalization" (56.52%) and "trumping" (64%). Vagina smelling" was more frequently displayed by N/N male (48%) and "biting" by Y/N male (60%). During the copulation, Y/N male displayed significantly more "nose-vagina" behavior (41%) and N/N male, the "vocalization" behavior (46.9%). Four females recently copulated by males, were mounted by other females in estrus producing an expulsion of both the seminal tap and the ejaculate. The results show a strong behavioral competition between the three males and a female precopulatory preference by the heterozygous Y/N male. A possible explanation to this phenomenon is that the Y/N male odoripherous secretions from both, salivary and prepucial glands; carry information about his genetic quality. Female-female mounting is probably an expression of intra-sexual competition, reducing chances for fertilization. |
| format | Online |
| id | azm-article-1960 |
| institution | Acta Zoológica Mexicana |
| language | spa |
| publishDate | 2006 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | azm-article-19602022-08-16T02:10:20Z ELECCIÓN PRECOPULATORIA Y CONDUCTA COPULATORIA EN CERDOS YORKSHIRE, YORKLANDRACE Y LANDRACE ELECCIÓN PRECOPULATORIA Y CONDUCTA COPULATORIA EN CERDOS YORKSHIRE, YORKLANDRACE Y LANDRACE Aguilera-Reyes, Ulises García López, Georgina I. Zavala Páramo, Guadalupe Monroy Vilchis, Octavio Pescador Salas, Nazario precopulatory choice copulatory behavior pigs landrace yorkshire Elección precopulatoria conducta copulatoria cerdos landrace yorkshire It is well known that male wild boars (Sus scrofa) are usually solitary. However, during the mating season, they compete for females which may bias their mate choice toward some of the males breed. In order to determinate whether or not a precopulatory choice occurs in captivity, 18 yorklandrace multiparous females (Y/N) were mated with three males belonging to three breeds: yorkshire (Y/Y), yorklandrace (Y/N), landrace (N/N). Copulation preference, precopulatory and copulatory behaviors, as well as the female-female interactions were registered. During the precopulatory phase, in terms of time, the Y/N male received more female attention (53.7%) than the other males. Additionally, Y/Y male more frequently displayed behaviors as "teeth chattering" (83.33%), "vocalization" (56.52%) and "trumping" (64%). Vagina smelling" was more frequently displayed by N/N male (48%) and "biting" by Y/N male (60%). During the copulation, Y/N male displayed significantly more "nose-vagina" behavior (41%) and N/N male, the "vocalization" behavior (46.9%). Four females recently copulated by males, were mounted by other females in estrus producing an expulsion of both the seminal tap and the ejaculate. The results show a strong behavioral competition between the three males and a female precopulatory preference by the heterozygous Y/N male. A possible explanation to this phenomenon is that the Y/N male odoripherous secretions from both, salivary and prepucial glands; carry information about his genetic quality. Female-female mounting is probably an expression of intra-sexual competition, reducing chances for fertilization. Se ha descrito que los cerdos ferales machos (Sus scrofa) son usualmente solitarios pero durante la época de apareamiento compiten por el acceso a las hembras y éstas pueden sesgar su elección y copular con alguno de ellos. A esto se le conoce como elección precopulatoria femenina. Con la finalidad de determinar si en condiciones de cautiverio ocurre esta elección, se aparearon 18 hembras multíparas yorklandrace Y/N con tres machos con experiencia pertenecientes a tres razas yorkshire Y/Y, yorklandrace Y/N, y landrace N/N, y se registraron las conductas precopulatorias y copulatorias de ambos sexos. También se registraron las interacciones entre hembras. Durante la fase precopulatoria el macho Y/N desplegó con mayor frecuencia mordiscos (60%) y recibió de las hembras mas atención en términos de tiempo (53.7%), que los otros machos. En cambio, el macho Y/Y desplegó con mayor frecuencia conductas como "castañeteo de dientes" (83.33%), "vocalización" (56.52%) y "trompeo" (64%). El macho N/N desplegó con mayor frecuencia el "olfateo de vagina" (48%). Durante la cópula el macho Y/N desplegó con mayor frecuencia el contacto naso-vaginal (41%) y el macho N/N, vocalización (46.9%). Cuatro de las hembras después de la cópula fueron montadas por otras hembras en estro, las primeras expulsaron el tapón vaginal del macho. Los resultados demuestran una fuerte competencia conductual entre los tres machos y sesgo en la elección precopulatoria femenina hacia el macho heterocigotico Y/N. Una posible explicación a este hecho es que tanto los mordiscos como las secreciones salivales y prepuciales del macho Y/N fueron percibidas por las hembras como pertenecientes a un macho de buena calidad genética. La expulsión del tapón vaginal de las hembras montadas por otras hembras posiblemente indica una forma de competencia intrasexual, que reduciría las probabilidades de fertilización de las hembras recién copuladas. Instituto de Ecología, A.C. 2006-05-08 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Original articles Artículos originales application/pdf https://azm.ojs.inecol.mx/index.php/azm/article/view/1960 10.21829/azm.2006.2211960 ACTA ZOOLÓGICA MEXICANA (N.S.); Vol. 22 No. 1 (2006); 63-73 ACTA ZOOLÓGICA MEXICANA (N.S.); Vol. 22 Núm. 1 (2006); 63-73 2448-8445 0065-1737 spa https://azm.ojs.inecol.mx/index.php/azm/article/view/1960/2073 Derechos de autor 2018 Acta Zoológica Mexicana (parte2) http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spellingShingle | Aguilera-Reyes, Ulises García López, Georgina I. Zavala Páramo, Guadalupe Monroy Vilchis, Octavio Pescador Salas, Nazario ELECCIÓN PRECOPULATORIA Y CONDUCTA COPULATORIA EN CERDOS YORKSHIRE, YORKLANDRACE Y LANDRACE |
| title | ELECCIÓN PRECOPULATORIA Y CONDUCTA COPULATORIA EN CERDOS YORKSHIRE, YORKLANDRACE Y LANDRACE |
| title_full | ELECCIÓN PRECOPULATORIA Y CONDUCTA COPULATORIA EN CERDOS YORKSHIRE, YORKLANDRACE Y LANDRACE |
| title_fullStr | ELECCIÓN PRECOPULATORIA Y CONDUCTA COPULATORIA EN CERDOS YORKSHIRE, YORKLANDRACE Y LANDRACE |
| title_full_unstemmed | ELECCIÓN PRECOPULATORIA Y CONDUCTA COPULATORIA EN CERDOS YORKSHIRE, YORKLANDRACE Y LANDRACE |
| title_short | ELECCIÓN PRECOPULATORIA Y CONDUCTA COPULATORIA EN CERDOS YORKSHIRE, YORKLANDRACE Y LANDRACE |
| title_sort | elección precopulatoria y conducta copulatoria en cerdos yorkshire, yorklandrace y landrace |
| url | https://azm.ojs.inecol.mx/index.php/azm/article/view/1960 |
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