Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/36926
Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Triploidy Induction in Stinging Catfish Heteropneustes fossilis Using Cold Shock
Author(s): Gheyas, Almas A
Mollah, M F A
Hussain, M G
Contact Email: almas.gheyas@stir.ac.uk
Keywords: Aquatic Science
Ecology
Food Science
Issue Date: 2001
Date Deposited: 20-Dec-2024
Citation: Gheyas AA, Mollah MFA & Hussain MG (2001) Triploidy Induction in Stinging Catfish Heteropneustes fossilis Using Cold Shock. <i>Asian Fisheries Science</i>, 14 (3), pp. 323-332. https://doi.org/10.33997/j.afs.2001.14.3.009
Abstract: A study was conducted to induce triploidy in newly fertilized eggs of H. fossilis using cold shock. The eggs were exposed at two temperature-regimes viz. 20C and 40C. Among the various combinations of temperature and duration tested, shock duration for 10 min at 20C applied 3 min after fertilization was the best; it induced triploidy up to 94 to 97% of the eggs and had the best hatching and survival percentage of the triploid larvae. The success of triploidy induction was determined by chromosome counting. Erythrocyte measurements from diploid and triploid individuals were compared to results of karyotyping which showed a significant increase (P < 0.05) in the erythrocyte nuclear major and minor axes, area and volume in triploids over those in diploids. The implications of the results for production of genetically sterile triploidy in stinging catfish are briefly discussed.
DOI Link: 10.33997/j.afs.2001.14.3.009
Rights: All the articles published in Asian Fisheries Science are licensed under a Creative Commons Attribution Non-commercial 4.0 International License (CC BY-NC 4.0).
Licence URL(s): http://creativecommons.org/licenses/by-nc/4.0/

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