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Induction and Synchronisation of Ovulation in Rainbow Trout, Oncorhynchus Mykiss, by Administration of Emulsified Buserelin (Gnrha) and Its Effects on Egg Quality

dc.authorscopusid 6507998082
dc.authorscopusid 36089066900
dc.authorscopusid 57219176657
dc.authorwosid Diler, Ibrahim/Afo-0368-2022
dc.authorwosid Sari, Mustafa/Hse-7390-2023
dc.contributor.author Arabaci, M
dc.contributor.author Diler, I
dc.contributor.author Sari, M
dc.date.accessioned 2025-05-10T17:38:16Z
dc.date.available 2025-05-10T17:38:16Z
dc.date.issued 2004
dc.department T.C. Van Yüzüncü Yıl Üniversitesi en_US
dc.department-temp Yuzuncu Yil Univ, Fac Agr, Dept Fisheries, TR-65080 Van, Turkey; Minist Agr & Rural Affairs, Kepez Aquaculture Ctr, Antalya, Turkey en_US
dc.description.abstract The aim of this study was to evaluate the effects of a water in oil (w/o) emulsion of the gonadotropin-releasing hormone agonist buserelin ([D-Ser(tBu)(6), Pro(9)-NEt]-GnR-Ha) in Freund's incomplete adjuvant (GnRHa-FIA) on the induction and synchronisation of ovulation in an early spawning strain (late August-September) of rainbow trout, Oncorhynchus mykiss. Mature females were injected once with 0, 25, 50 mug kg(-1) of GnRHa-FIA or 25 mug kg(-1) of GnRHa in physiological saline (acute treatment). All fish dosed with 50 mug kg-1 of GnRHa-FIA ovulated within 10 days after injection, whereas fish dosed with 25 mug kg(-1) of GnRHa-FIA reached 100% ovulation 13 days after injection (water temperature, 11.5 degreesC). In contrast, ovulation percentage was 71% in control group, but it was only 66% in fish treated with acute injection of GnRHa 47 days after injection. Fertilization, eyeing and hatching percentages were high in all treatment groups and did not differ significantly among groups (p>0.05). None of the treatments caused any prespawning mortality. However, post-spawning mortality was observed in female rainbow trout treated with the low and high dose of GnRHa-FIA (46% and 53%, respectively). In conclusion, both GnRHa-FIA doses were effective in advancing the onset of ovulation, synchronising the ovulation of the treated fish and shortening the reproductive period, relative to the control or GnRHa injected group. GnRHa-FIA treatments did not affect oocyte diameter or egg quality based on the fertilization, eyeing and hatching percentages. There was, however, a very significant post-spawning mortality, reaching 50% of the population. (C) 2004 Elsevier B.V. All rights reserved. en_US
dc.description.woscitationindex Science Citation Index Expanded
dc.identifier.doi 10.1016/j.aquaculture.2004.04.012
dc.identifier.endpage 484 en_US
dc.identifier.issn 0044-8486
dc.identifier.issn 1873-5622
dc.identifier.issue 1-4 en_US
dc.identifier.scopus 2-s2.0-3142601093
dc.identifier.scopusquality Q1
dc.identifier.startpage 475 en_US
dc.identifier.uri https://doi.org/10.1016/j.aquaculture.2004.04.012
dc.identifier.uri https://hdl.handle.net/20.500.14720/14626
dc.identifier.volume 237 en_US
dc.identifier.wos WOS:000222939900035
dc.identifier.wosquality Q1
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.subject Induction Of Ovulation en_US
dc.subject Gnrha en_US
dc.subject Freund'S Incomplete Adjuvant en_US
dc.subject Rainbow Trout en_US
dc.title Induction and Synchronisation of Ovulation in Rainbow Trout, Oncorhynchus Mykiss, by Administration of Emulsified Buserelin (Gnrha) and Its Effects on Egg Quality en_US
dc.type Article en_US

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