Eficiencia de la inexperiencia sexual de los machos cabríos para estimular la actividad estral en cabras anéstricas mediante el efecto macho
DOI:
https://doi.org/10.59741/agraria.v6i1-2-3.441Keywords:
Caprine, Reproductive seasonality, Estrous behavior, Sexual experienceAbstract
The aim of this study was to determine if sexually unexperienced male goats, exposed to an artificial long day condition, in order to stimulate its sexual behavior, may stimulates the estrous activity in anestrous female goats by sole male effect. Two male goats with sexual experience, and two other unexperienced ones were submitted to a 2.5 months long day period to stimulate their sexual activity during the non-breeding season. One group of multiparous females (n = 10) was exposed to sexually experienced males, and another group (n = 10) was exposed to unexperienced. The sexual behavior of males (ano-genital sniffing, nudging, mount attempts, mounts, self-urination and flehmen response) was recorded for 1.5 hours during the first 5 days of contact among them. Estrous behavior was detected twice a day during the whole study. The number of ano-genital sniffing was greater (P<0.001) in males with sexual experience than in those without sit. The number of nudging, mount attempts, mounts, self-urination and flehmen response was not different (P>0.5) between males with and without sexual experience. The number of females exposed to males with (10/10) or without (9/10) sexual experience that displayed an estrous behavior, did not differ (P>0.05) between groups. These results show that sexually naive male goats, subjected to long day conditions, stimulate the estrous activity of anestrous female goats in the same the sexually experienced bucks do.
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Chemineau, P., Malpaux, B., Delgadillo, J.A., Guerin, Y., Ravault, J.P., Thimonier, J., Pelletier, J. 1992. Control of sheep and goat reprodution: use of light and melato- nin. Anim. Reprod. Sci. 30:157-184. DOI: https://doi.org/10.1016/0378-4320(92)90010-B
Delgadillo, J.A., Flores, J.A., Véliz, F.G., Hernandez, F.G., Duarte, G., Vielma, J., Poindron, P., Chemineau, P., Malpaux, B. 2002. Induction of sexual activity in lac- tating anovulatory female goats using male goats treated only with artificially long days. J. Anim. Sci. 80:2780- 2786. DOI: https://doi.org/10.2527/2002.80112780x
Delgadillo, J.A., Flores, J.A., Véliz, F.G., Duarte, G., Vielma, J., Poindron, P., Malpaux, B. 2003. Control de la reproducción de los caprinos del subtrópico mexicano utilizando tratamientos fotoperiódicos y efecto macho. Vet. Méx. 34:69-79.
Delgadillo, J.A., Cortez, M.E., Duarte, G., Chemineau, P., Malpaux, B. 2004. Evidece that the photoperiod con- trols the annual changes in testosterone secretion, tes- ticular and body weight in subtropical male goats. Reprod. Nutr. Dev. 44:183-193. DOI: https://doi.org/10.1051/rnd:2004024
Delgadillo, J.A., Flores, J.A., Véliz, F.G., Duarte, G., Vielma, J., Hernandez, H., Fernández, I.G. 2006. Importance of the signals provided by the buck for the success of the male affect in goats. Reprod. Nutr. Dev. 46:391- 400. DOI: https://doi.org/10.1051/rnd:2006020
Flores, J.A., Véliz, F.G., Pérez-Villanueva, J.A., Martínez de la Escalera, G., Chemineau, P., Poindron, P., Malpaux, B., Delgadillo, J.A. 2000. Male reproductive condition is the limiting factor of efficiency in the male effect during seasonal anestrus in female goats. Biol. Reprod. 62:1409-1414. DOI: https://doi.org/10.1095/biolreprod62.5.1409
González, R., Poindron, P., Signoret, J.P. 1988. Temporal variation in LH and testosterone responses of rams after the introduction of estrous females during the breeding season. J. Reprod. Fertil. 83:201-208. DOI: https://doi.org/10.1530/jrf.0.0830201
Katz, L. S., Price E. O., Wallach S. J. R., Zenchak J.J. 1988. Sexual performance of rams reared with or with- out females after weaning. J. Anim. Sci. 66:1166-1173. DOI: https://doi.org/10.2527/jas1988.6651166x
Perkins, A., Fitzgerald, J.A. 1994. The behavioral compo- nent of the ram effect : the influence of ram sexual behavior on the induction of estrus in anovulatory ewes. J. Anim. Sci. 72:51-55. DOI: https://doi.org/10.2527/1994.72151x
Price, E.O., Estep, D.Q., Wallach, S.J.R. 1991. Sexual performance of rams as determined by maturation and sexual experience. J. Anim. Sci. 69:1047-1052. DOI: https://doi.org/10.2527/1991.6931047x
Rivas-Muñoz, R., Fitz-Rodríguez, G., Poindron, P., Malpaux, B., Delgadillo J.A. 2007. Stimulation of es- trous behavior in grazing female goats by continuous or discontinuous exposure to males. J. Anim. Sci. 85:1257-1263. DOI: https://doi.org/10.2527/jas.2006-115
Ungerfeld, R., Ramos, M.A., González-Pensado, S.P. 2007. Ram effect: Adult rams induce a greater repro- ductive response in anestrous ewes than yearling rams. Anim. Reprod. Sci. 103(3-4):271-7. DOI: https://doi.org/10.1016/j.anireprosci.2006.12.013
Véliz, F.G., Vélez, L.I., Flores, J.A., Duarte, G., Poindron, P., Malpaux, B., Delgadillo, J.A. 2004. La presencia del macho en un grupo de cabras anéstricas no impide su respuesta estral a la introducción de un nuevo ma- cho. Vet. Méx. 35:169-178.
Véliz, F.G., Poindron, P., Malpaux, B., Delgadillo, J.A. 2006. Maintaining contact with bucks does not induce refractoriness to the male effect in seasonally anestrous female goats. Anim. Reprod. Sci. 92:300-309. DOI: https://doi.org/10.1016/j.anireprosci.2005.06.006
Walkden-Brown, S.W., Martin, G.B., Restall, B.J. 1999. Role of male-female interaction in regulating reproduc- tion in sheep and goats. J. Reprod. Fertil. 52:243-257.
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