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Effect of triploidization on juvenile African catfish (Clarias gariepinus)

Karami, Abdollah and Christianus, A. and Ishak, Zamzuri and Courtenay, S. C. and Syed, Mohd Arif and Masdor, Noor Azlina and Hussin, Noorshinah (2009) Effect of triploidization on juvenile African catfish (Clarias gariepinus). Aquaculture International . ISSN 0967-6120 (Print) 1573-143X (Online)

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Triploid African catfish (Clarias gariepinus) produced through cold shock 3 min post fertilization were compared to diploid offspring of the same parentage at 66 days of age. Triploid fish were significantly shorter (11%) and weighed less (18%) than diploids but showed no significant difference in mortality or cannibalism, which can be an important source of losses under aquaculture conditions. Erythrocytes of triploid fish were more oval shaped than the normal spherical shape of diploid erythrocytes, were significantly larger (38%) and had nuclei that were significantly larger (25%) than observed in diploid fish. Erythrocyte morphological characteristics show potential as an indicator for the detection of triploidy in African catfish.

Item Type:Article
Keyword:Triploid, Clarias gariepinus, Cannibalism, Red blood cell
Faculty or Institute:Faculty of Agriculture
DOI Number:10.1007/s10499-009-9307-x
ID Code:5197
Deposited By: Norhazura Hamzah
Deposited On:07 Apr 2010 10:19
Last Modified:28 Sep 2015 09:25

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