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Hatchery propagation of five hybrid groups by artificial hybridization of Clarias gariepinus (B) and Heterobranchus longifilis (Val.) (Clariidae) using dry, powdered carp pituitary hormone


, : Hatchery propagation of five hybrid groups by artificial hybridization of Clarias gariepinus (B) and Heterobranchus longifilis (Val.) (Clariidae) using dry, powdered carp pituitary hormone. Journal of Aquaculture in the Tropics 10(1): 1-11

Reciprocal F1 and F2 crosses and reciprocal backcrosses were produced by artificial hybridization of Clarias gariepinus (Cg) and Heterobranchus longifilis (Hl), using powdered carp pituitary (4-6 mg/kg fish). Mean hatching rate ranged from 58.0+or-10.19 to 63.67+or-10.19% for the F1 generation and from 15.5+or-2.17 to 19.83+or-3.37% in F2 crosses and backcrosses.

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