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Título : Efficiency of hCG for inducing resumption of ovarian cyclicity and synchronized ovulations during the seasonal anestrous in sheep
Autor : Santos Jiménez, Zurisaday.
Meza Herrera, César A.
Calderón Leyva, Guadalupe.
Martínez Ros, Paula.
Guillén Muñoz, Juan M.
González de Bulnes López, Antonio.
Materias: Ovejas - Reproducción.Sheep - Reproduction.Estro.Hormones, Sex.Synchronization.Estrus.Hormonas sexuales.Sincronización.
Fecha de publicación : 5-nov-2021
Editorial : MDPI
Citación : Santos-Jimenez, Z., Meza-Herrera, C. A., Calderon-Leyva, G., Martinez-Ros, P., Guillen-Muñoz, J. M. & Gonzalez-Bulnes, A. (2021). Efficiency of hCG for inducing resumption of ovarian cyclicity and synchronized ovulations during the seasonal anestrous in sheep. Animals, vol. 11, i. 11 (05 nov.), art. 3159. DOI: https://doi.org/10.3390/ani11113159
Resumen : This research aimed to evaluate whether the administration of hCG at the time of removal of a progesterone device may be effective at inducing estrus and ovulations in sheep during the natural seasonal anestrous, by comparing reproductive outputs (induction and duration of estrus, follicle development, ovulation, ovulation rate, and pregnancy rates) in ewes treated with eCG or only saline solution at the time of CIDR removal. Whereas results demonstrated no response in the control non-treated group, the largest rate of narrowly synchronized estrus signs and ovulations occurred in the eCG-group. The administration of hCG was effective at inducing estrus, promote follicular growth and a delayed yet significant ovulation (>84%) on day 10 after CIDR removal; moreover, an increased embryonic implantation rate was also observed. Moreover, if the hCG ewes remain exposed to active males for some days, said strategy could be adopted, aiming to induce pregnancies by natural mating in a short period of time.
Descripción : Este artículo se encuentra disponible en la siguiente URL: https://www.mdpi.com/2076-2615/11/11/3159
Este artículo pertenece al número especial "Reproductive Management of Sheep and Goats".
Idioma: en
es
URI : http://hdl.handle.net/10637/13547
Derechos: http://creativecommons.org/licenses/by/4.0/deed.es
ISSN : 2076-2615 (Electrónico)
Aparece en las colecciones: Dpto. Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos

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