Mid-autumn spermiation in outdoor-cultured pikeperch (Sander lucioperca) using different gonadoliberin application strategies

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dc.authoridRaskovic, Bozidar/0000-0001-7190-5833
dc.authoridLjubobratovic, Uros/0000-0002-1972-467X
dc.authoridOzgur, Mustafa Erkan/0000-0002-2966-9627
dc.authorwosidLjubobratovi?, Uroš/AAI-3583-2020
dc.authorwosidRaskovic, Bozidar/E-6523-2011
dc.contributor.authorOzgur, Mustafa Erkan
dc.contributor.authorErdogan, Selim
dc.contributor.authorRaskovic, Bozidar
dc.contributor.authorFazekas, Georgina
dc.contributor.authorLjubobratovic, Uros
dc.date.accessioned2024-08-04T20:50:43Z
dc.date.available2024-08-04T20:50:43Z
dc.date.issued2021
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThis study aimed to find the optimal strategy for the application of salmon gonadotropin-releasing hormone analogue (sGnRHa) in outdoor-cultured pikeperch males in an exceptionally early term in early November. According to the histological examination, on the day of hormonal treatment, pikeperch testes were in the late stadium of spermatogenesis, with 78.7% of germ cells attributed to sperm cells. Five experimental groups were established varying on hormonal preparations and water temperature: (1) sGnRHa (25 mu g kg(-1)) was applied to fish at pre-warming at water temperature of 11 degrees C (GnRH-LOW); (2) sGnRHa (25 mu g kg(-1)) was applied to fish post-warming at water temperature of 15 degrees C (GnRH-HIGH); (3) priming group (5 mu g kg(-1) at 11 degrees C +25 mu g kg(-1) at 15 degrees C); (4) reference group - fish were injected with human chorionic gonadotropin; (5) control group -fish were injected with saline solution. Sperm was obtained from all fish in hormonally treated groups, whereas the fish treated with saline did not spermiate. The greatest values of the straight-line velocity (VSL), the curvilinear velocity (VCL), and the angular path velocity (VAP) of sperm cells, as well as the amounts of Mg2+, K+, and Na+ in the sperm seminal plasma, were obtained in GnRH-HIGH, whereas the GnRH-LOW group yielded the greatest sperm volume. Among the ions in seminal plasma, K+ and Na+ dominated and showed a relationship with sperm kinematic parameters. According to the obtained data, sGnRHa can be considered as an appropriate hormonal preparation to induce spermiation at an early preseason. Either before or after warming, sGnRHa application can yield sperm of proper quantity and quality as early as 5 months before the natural spawning season. A comprehensive study is recommended to evaluate the full period of sperm availability in outdoor-reared males, followed by direct evaluation of the fertilizing capacity.en_US
dc.description.sponsorshipPIKEPERCHSPERM project [AE110018]; AquaExcel2020 [INFRAIA-1-2014/2015]en_US
dc.description.sponsorshipThis study was part of the PIKEPERCHSPERM project (AE110018) and was funded by AquaExcel2020 (INFRAIA-1-2014/2015). The infrastructure users are grateful to the TNA managers and technical staff of the National Agricultural Research and Innovation Centre, Institute for Fisheries and Aquaculture (NAIK-HAKI), Szarvas, Hungary.en_US
dc.identifier.doi10.1016/j.aqrep.2021.100891
dc.identifier.issn2352-5134
dc.identifier.scopus2-s2.0-85116407983en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.aqrep.2021.100891
dc.identifier.urihttps://hdl.handle.net/11616/100242
dc.identifier.volume21en_US
dc.identifier.wosWOS:000706788500005en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofAquaculture Reportsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectSperm cell kinematicsen_US
dc.subjectSeminal plasma ionsen_US
dc.subjectGnRHen_US
dc.subjectArtificial reproductionen_US
dc.subjectTestis histologyen_US
dc.titleMid-autumn spermiation in outdoor-cultured pikeperch (Sander lucioperca) using different gonadoliberin application strategiesen_US
dc.typeArticleen_US

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