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1.
Andrology ; 8(5): 968-969, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32860350
2.
Theriogenology ; 79(6): 953-60, 2013 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-23427939

RESUMO

We evaluated two approaches to improving in vitro wolf sperm survival. Both approaches aimed to reduce the exposure of sperm to prostatic fluid resulting from electroejaculation: (1) use of extender formulations recently developed for the domestic dog (the most closely related domestic species); and (2) dilution of ejaculate shortly after semen collection. Three commercial extenders were compared with the TRIS-based extender we had previously used. We also compared the effects on motility of adding extender immediately after collection to our previous protocol in which extender was added after centrifugation. Both subjective and objective (computer-assisted semen analysis program) kinematic measurements were made. Relatively minor differences were noted (and not in total or progressive motility) between the centrifugation protocols. Two of the commercial extenders resulted in significant improvement in motility over the TRIS-based extender and one of the other commercial extenders at 8 hours after collection (mean ± SEM; total motility was 68.3 ± 4.0% and 70.0 ± 4.0% compared with 53.3 ± 4.0% and 55.0 ± 4.0%, respectively; progressive motility 58.6 ± 5.4% and 57.1 ± 5.4% compared with 32.8 ± 5.4% and 39.3 ± 5.4%; P < 0.05). We inferred that components in two of the commercial dog extenders might provide more protection for wolf sperm, prolonging their motility.


Assuntos
Preservação do Sêmen/veterinária , Espermatozoides/fisiologia , Lobos/fisiologia , Animais , Fenômenos Biomecânicos , Sobrevivência Celular , Centrifugação/veterinária , Masculino , Preservação do Sêmen/métodos , Manejo de Espécimes/métodos , Manejo de Espécimes/veterinária , Espermatozoides/metabolismo
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