title: Sperm quality differences between the rainy and dry seasons in captive black-handed spider monkeys (Ateles geoffroyi).
abstract: The present work provides an assessment of sperm measures (concentration, motility, viability, etc.) of three black-handed spider monkeys (Ateles geoffroyi) during the rainy and dry seasons in Mexico City, as well as an evaluation of the between-subjects variability of sperm quality. Twenty samples obtained by rectal electroejaculation and digested with trypsin were evaluated. The results showed that during the dry season (n = 9) the semen samples were of better quality than those obtained during the rainy season (n = 11). The individual animals showed differences in sperm concentration, although there were no differences in sperm quality.
authors.affiliation: Departamento de Etología, Instituto Nacional de Psiquiatría Ramón de la Fuente, Programa Universitario de Investigación en Salud, Universidad Nacional Autónoma de México, México DF, México. leonorh@hotmail.com
authors.forename: Leonor
authors.initials: L
authors.lastname: Hernández-López
authors.forename: Gerardo Cerezo
authors.initials: GC
authors.lastname: Parra
authors.forename: Ana Lilia
authors.initials: AL
authors.lastname: Cerda-Molina
authors.forename: Stephanella C
authors.initials: SC
authors.lastname: Pérez-Bolaños
authors.forename: Vicente
authors.initials: V
authors.lastname: Díaz Sánchez
authors.forename: Ricardo
authors.initials: R
authors.lastname: Mondragón-Ceballos
mesh_terms: D000818:Animals; D002427:Cebidae / Q000502:physiology*; D005298:Fertility / Q000502:physiology; D008297:Male; D011891:Rain; D012621:Seasons; D013081:Sperm Motility; D013094:Spermatozoa / Q000502:physiology*