PATTERNS OF SPERMATOZOA MOVEMENT IN THE ALPACA (VICUGNAPACOS): EX SITU OBSERVATIONS

• Autores: Pacheco C., Joel, Villalta R., P., Barriga R., D.
• Formato: artículo
• Fecha de Publicación: 2011
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revista UNMSM - Revista de Investigaciones Veterinarias del Perú
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/279
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/veterinaria/article/view/279
• Nivel de acceso: acceso abierto
• Materia: hiperactivation; motility; sperm; alpaca; Hiperactivación; motilidad; espermatozoide

The sperm hyperactivation is a step of the spermatozoa capacitation and consists ona change in the pattern of movements, the variation of the angle of the head, and thelongitude and width of the movement of the tail. The objective of the present study wasto determine the difference in movement patterns of spermatozoa and the frequency ofhyperactive spermatozoa in the oviduct according to the time after mating. The recoveryof the spermatozoa in five alpacas was done after 16, 20, 24, 28 and 32 hours post mating.Sperms were evaluated according to the pattern of movement. The frequency ofhyperactive spermatozoa increased until 28 hours post copula (71.4%).