INDUCED BREEDING AND FRY NURSING OF MYSTUS VITTATUS (BLOCH 1797)

Quazi Zahangir  Hossain; M. Altaf  Hossain; Selina  Parween

doi:10.53808/KUS.2006.7.2.0549-L

Authors

Quazi Zahangir Hossain Environmental Science Discipline, Khulna University, Khulna 9208, Bangladesh
M. Altaf Hossain Department of Zoology and Vice-chancellor, University of Rajshahi, Rajshahi 6205, Bangladesh
Selina Parween Department of Zoology, University of Rajshahi, Rajshahi 6205, Bangladesh

DOI:

https://doi.org/10.53808/KUS.2006.7.2.0549-L

Keywords:

Induced breeding, fry nursing, Mystus vittatus

Abstract

The work is related to optimization of PG dose and survivability of the spawn of Mystus vittatus in the tank nursery at Arabpur Fish Farm in Jessore, Bangladesh during 2000 to 2002. Trial doses of PG used for induced breeding of M. vittatus were 1 to 4 mg PG in the first dose and 4 to 8 mg in the second dose for female. On the other hand, the male fishes were administered only a single trial dose of 2, 3 and 4 mg PG. Induced breeding was successfully done in M. vittatus with 3 mg of PG kg^-1 body weight in first dose and 6.0 mg PG in second dose for female and a single dose of 3 mg PG for male for virgin fish, F₁ and F₂ generation. The tank nursery performance of the fry was studied in regard to length, weight, production and survivability rate. Live animal feeds (rotifers) were used. The highest growth and survivability of the fish fry was obtained by using rotifers of 40 cumm^-1and 20 cumm^-1, respectively.

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