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The efficiency of different types of extenders for semen cooling in stallions

OBJECTIVE: This study was conducted to examine influence of skimmed milk-based extender (SM), INRA 96 extender and BotuSemen Gold extender on parameters of stallions’ ejaculate during storage. METHODS: In this study, 14 stallions between 4 and 20 years of age were monitored. Total and progressive mo...

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Detalles Bibliográficos
Autores principales: Rečková, Zuzana, Filipčík, Radek, Soušková, Katarína, Kopec, Tomáš, Hošek, Martin, Pešan, Vojtěch
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Animal Bioscience 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9065777/
https://www.ncbi.nlm.nih.gov/pubmed/34991206
http://dx.doi.org/10.5713/ab.21.0300
Descripción
Sumario:OBJECTIVE: This study was conducted to examine influence of skimmed milk-based extender (SM), INRA 96 extender and BotuSemen Gold extender on parameters of stallions’ ejaculate during storage. METHODS: In this study, 14 stallions between 4 and 20 years of age were monitored. Total and progressive motility, viability and morphology of sperm were evaluated at time intervals of 24, 48, and 72 hours after collection. RESULTS: The total motility, progressive motility, and values of sperm with normal morphology were significantly higher in the INRA 96 and BotuSemen Gold extenders than in the SM (p<0.01). The sperm viability differed significantly in all extenders (p<0.01). The highest value of sperm viability was in INRA 96 (64.69%±0.67%) and lowest in SM (59.70%±0.81%). The highest differences occurred at 72 hours of storage. Values of total motility, progressive motility and sperm viability decreased over time (p<0.01). In case of sperm morphology there was no statistically significant decrease between 48- and 72-hour time intervals. CONCLUSION: It can be concluded that the extenders with a chemically defined composition have shown better indicators of insemination capabilities in ejaculates than the SM. The BotuSemen Gold extender is a suitable alternative to the INRA 96, when used within 48 hours; after 72 hours of storage, however, the INRA 96 showed a higher share of viable spermatozoa.