Post-Ovulatory Oocyte Ageing in Pikeperch (Sander lucioperca L.) and its Effect on Egg Viability Rates and the Occurrence of Larval Malformations and Ploidy Anomalies

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F15%3A43888886" target="_blank" >RIV/60076658:12520/15:43888886 - isvavai.cz</a>
Result on the web
<a href="http://www.trjfas.org/abstract.php?lang=en&id=782" target="_blank" >http://www.trjfas.org/abstract.php?lang=en&id=782</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4194/1303-2712-v15_2_29" target="_blank" >10.4194/1303-2712-v15_2_29</a>

Result language
angličtina
Original language name
Post-Ovulatory Oocyte Ageing in Pikeperch (Sander lucioperca L.) and its Effect on Egg Viability Rates and the Occurrence of Larval Malformations and Ploidy Anomalies
Original language description
The effect of post-ovulatory oocyte ageing on egg quality was assessed in pikeperch Sander lucioperca to identify the reliable and the best post-ovulatory stripping time. Ovulated eggs were retained in the ovarian cavity for 0-3, 3-9, 6-12 and 12-18 hours post-ovulation (HPO) prior to fertilization. Fertilization, hatching and embryo mortality rates as well as the occurrence of larval malformations and ploidy anomalies were considered as indices for egg quality. The results indicated that the fertilization and hatching rates remained nearly constant, at approximately 80%, for the eggs retained in the ovarian cavity between 0-18 hours after ovulation. Post-ovulatory oocyte ageing did not affect the embryo mortality or the occurrence of larval malformations at least during the 12-hour experimental period. However, the incidence of triploidization in the larvae increased over time from 1.6% at 0-3 HPO to 5% in more aged oocytes at 6-18 HPO. Egg quality retention for at least 12 hours afte
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GL - Fishery
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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