Artículo
Effect of seminal plasma cholesterol and triacylglycerides concentrations and sperm morphology on semen freezability in domestic cats (Felis silvestris catus)
García, María Florencia
; Nuñez Favre, Romina de Los Angeles
; Rearte, Ramiro
; Stornelli, María Cecilia; Jurado, Susana Beatriz; de la Sota, Rodolfo Luzbel
; Stornelli, María Alejandra
Fecha de publicación:
09/2024
Editorial:
W B Saunders Co-Elsevier Inc
Revista:
Topics In Companion Animal Medicine
ISSN:
1938-9736
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
There is scarce information about the effect of sperm morphology and seminal plasma composition on cat semen freezability. Thus, this study aims to assess the effect of cat sperm morphology and seminal plasma cholesterol (CHOL) and triacylglyceride (TAG) concentrations on sperm post-thaw survival. Ejaculates (n = 49) were evaluated, and seminal plasma was separated and frozen until CHOL and TAG concentrations were measured. The sperm pellet was diluted in a tris-based egg yolk extender, frozen (n = 38), or processed for sperm ultrastructure study (n = 11). Abnormalities recorded were abnormal head shape and size, detached heads, knobbed or ruffled acrosomes, eccentric mid-piece insertion, proximal and distal cytoplasmic droplets, folded and coiled tails, and Dag defect. Ultramicroscopic evaluation detected several sperm abnormalities in fresh semen and some sperm damage in frozen semen. Seminal plasma lipids components were positively correlated with post-thaw motility and acrosome integrity. Higher freezability indices for motility and acrosome integrity were observed in frozen-thawed semen with high seminal plasma CHOL and TAG concentrations. No freezability differences were observed between teratozoospermic and normozoospermic ejaculates. Our results showed that even when seminal plasma was removed before cryopreservation, sperm survival after thawing was significantly higher in samples with high seminal plasma CHOL and TAG concentrations, indicating a rapid adherence to these compounds to the sperm plasma membrane, protecting sperm cells from temperature changes. Nevertheless, there were no differences in sperm freezability by sperm morphology.
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Articulos(CCT - LA PLATA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - LA PLATA
Citación
García, María Florencia; Nuñez Favre, Romina de Los Angeles; Rearte, Ramiro; Stornelli, María Cecilia; Jurado, Susana Beatriz; et al.; Effect of seminal plasma cholesterol and triacylglycerides concentrations and sperm morphology on semen freezability in domestic cats (Felis silvestris catus); W B Saunders Co-Elsevier Inc; Topics In Companion Animal Medicine; 62; 9-2024; 1-8
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