RT info:eu-repo/semantics/article
T1 Current challenges in sheep artificial insemination: A particular insight
A1 Álvarez García, Mercedes
A1 Anel López, Luis
A1 González Boixo, José Carlos
A1 Chamorro Álvarez, César Ángel
A1 Neila Montero, Marta
A1 Montes Garrido, Rafael
A1 Paz Cabello, Paulino de
A1 Anel Rodríguez, Luis
A2 Medicina y Cirugia Animal
K1 Veterinaria
K1 AI
K1 Cervix
K1 Cryopreservation
K1 Ovine
K1 Sperm
K1 Transcervical
K1 3109 Ciencias Veterinarias
AB [EN] Ovine artificial insemination (OAI) is not commonly performed because of specific problems related to semen application techniques, leading to highly variable results. The ideal methodology (frozen-thawed semen/vaginal route) is unfeasible under field conditions due to the cervix morphology of the ewe, which prevents the process of intrauterine insemination necessary to obtain acceptable results. Currently, OAI commercial programmes use superficial cervical insemination, CAI (vaginal), with chilled semen (15°C) and intrauterine insemination, LAI (laparoscopic), with frozen-thawed semen. The ability to improve upon these contrasting techniques may be derived from examining certain poorly studied factors such as insemination time, productive state of females and alternatives of seminal preservation, some of which we reviewed in this work. This interim solution will remain in use until AI by the vaginal route with frozen-thawed semen is developed, but it poses new challenges in optimizing the freezing of the sperm and adapting the cervical (CAI) and/or transcervical intrauterine AI (TCAI). In this review, we address the current problems and evaluate their methodological (mechanical) and chemical (dilation) alternatives. Currently, TCAI is a methodologically complex technique with poor fertility results, so further studies are needed to improve the logistics of this procedure and the results of its application
PB Wiley
SN 0936-6768
LK https://hdl.handle.net/10612/18281
UL https://hdl.handle.net/10612/18281
NO Álvarez García, M., Anel-Lopez, L., Boixo, J. C., Chamorro, C., Neila-Montero, M., Montes-Garrido, R., de Paz, P., & Anel, L. (2019). Current challenges in sheep artificial insemination: A particular insight. Reproduction in Domestic Animals, 54(S4), 32-40. https://doi.org/10.1111/RDA.13523
DS BULERIA. Repositorio Institucional de la Universidad de León
RD 17-may-2024