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IJEB Vol.47(08) [August 2009] >


Title: Hybridization between threatened freshwater catfish Mystus gulio (Hamilton & Buchanan) and Mystus montanus (Jerdon) by artificial fertilization
Authors: Haniffa, M A
Dhanaraj, M
Ramakrishnan, C Muthu
Manju, R Arthi
Kumar, Y Ananth
Singh, S V Arun
Keywords: Artificial fertilization
Hybridization
Mystus gulio
M. montanus
Threatened catfish
Issue Date: Aug-2009
Publisher: CSIR
Abstract: Inter-specific hybrids were produced between the threatened catfish species Mystus gulio × Mystus montanus. The differences in percentage of fertilization and hatching between control and interspecies were significant. The survival of hybrid was significantly lower (24.80 ± 4.3%) when compared to control (95.1 ± 3.5%). Time difference in yolk absorption by hybrid (73.30 h) was higher than that of control (72 h). When compared to interspecific fertilized egg the hatching time (24-25 h) and viability of larvae of the control were significantly better. In hybrids more deformed hatchlings (52.7 ± 4.2 %) were noticed than the control (24.80 ± 4.3%).
Page(s): 679-683
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Source:IJEB Vol.47(08) [August 2009]

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