Brief communication: rapid elimination of egg stickiness using sodium hypochlorite in wels catfish Silurus glanis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F21%3A43902520" target="_blank" >RIV/60076658:12520/21:43902520 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s10695-020-00843-3" target="_blank" >https://doi.org/10.1007/s10695-020-00843-3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10695-020-00843-3" target="_blank" >10.1007/s10695-020-00843-3</a>

Result language
angličtina
Original language name
Brief communication: rapid elimination of egg stickiness using sodium hypochlorite in wels catfish Silurus glanis
Original language description
The wels catfishSilurus glanisis valuable fish for aquaculture. Its production relies mainly on artificial reproduction. One of the crucial steps determining success of the reproduction is elimination of egg stickiness after fertilization. To date, the catfish egg de-adhesion is usually carried out using proteolytic enzymes. Here, we prove a novel method based on oxidation of the egg surface by means of sodium hypochlorite. An effect of different exposure times and concentrations on the egg adhesiveness and damage was tested in the first trial. The selected concentration of sodium hypochlorite 0.3 mg center dot l(-1)with exposure time 40 s was used for comparison with the conventical de-adhesion method using alcalase treatment. The fertilization and hatching rates reached very satisfactory outcome in both treatments (98.3 +/- 0.7% vs 97.5 +/- 2.2% and 86.6 +/- 8.3% vs 91.3 +/- 8.5% in alcalase- and sodium hypochlorite-treated embryos, respectively) without any statistical differences. Thus, the de-adhesion method using sodium hypochlorite can be recommended as a suitable method for wels catfish eggs. The method is simple, cheap, very fast, and the treated eggs are disinfected.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10604 - Reproductive biology (medical aspects to be 3)

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)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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