Efecto de la estación sobre las características seminales de alpacas (Vicugna pacos) criadas a nivel del mar

Juan C. Villanueva, Willian F. Huanca, O. Fred Hilari, P. Melania Uchuari, G. Francisco Rodríguez, L. Wilfredo Huanca

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

1 Cita (Scopus)

Resumen

The objective of the present study was to evaluate the effect of the season (summer, winter) on the seminal variables of alpacas reared under conditions of the Peruvian coast. The study was conducted between January to September 2015 in Lima, Peru. Semen samples were collected from four 6-7 year-old male alpacas, fed alfalfa hay. Five collections per animal were made, using artificial vagina, in each season: summer (January-March) and winter (July-September) with intervals of 5 days between collections (20 collections per season). Macroscopic characteristics (volume, pH, viscosity, color) and microscopic characteristics (concentration, motility, vitality, percentage of abnormalities, tail and head abnormalities, proximal and distal cytoplasmic droplet, and endosmosis test) were evaluated. The results obtained in the winter showed significant differences (p<0.05) for concentration (135.9 ± 88.7 x 106/ml vs 242.4 ± 140.9 x 106/ml), motility (58.0 ± 22.1% vs 77.3 ± 11.6%), vitality (52.9 ± 18.4% vs 64.5 ± 15.9%), viscosity (5.9 ± 3.4 cm vs 3.7 ± 2.0 cm) and normal sperm frequency (82.6 ± 7.2% vs 88.1 ± 7.0%) for summer and winter, respectively. The results obtained indicate that the semen quality of alpacas, under the conditions of the study, differs between seasons.

Título traducido de la contribuciónSeasonal effect on the seminal characteristics of alpacas (Vicugna pacos) raised at sea level
Idioma originalEspañol
Páginas (desde-hasta)559-564
Número de páginas6
PublicaciónRevista de Investigaciones Veterinarias del Peru
Volumen29
N.º2
DOI
EstadoPublicada - 2018

Nota bibliográfica

Publisher Copyright:
© Universidad Nacional Mayor de San Marcos. All rights reserved.

Palabras clave

  • Alpaca
  • Season
  • Semen

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