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Triploidization of European catfish, Silurus glanis L., by heat shock
Author(s) -
Linhart O,
Flajšhans M
Publication year - 1995
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.1995.tb00925.x
Subject(s) - biology , catfish , shock (circulatory) , gamete , fishery , zoology , anatomy , fish <actinopterygii> , human fertilization , medicine
Heat shock was applied to fertilized eggs of European catfish, Silurus glanis L., for the induction of triploidy. A heat shock of 40. 5°C lasting 1 min and starting 9 min after gamete activation gave the best results with 88.93% of hatched viable fry (92.41% in control group). Yields of hatched viable triploid fry reached 63.14% or 50.60%, when expressed as percentage of the absolute number of viable fry or number of living eggs in eye‐bud stage, respectively (P < 0.05).