INDUCED BREEDING OF Cirrhinus reba (HAM.) AND Labeo bata (HAM.)

Information on artificial breeding of Cirrhinus reba and Labeo bata is not common in Bangladesh. There are reports serious decline natural abundance these species considered threatened under present environmental situation. The should be brought culture systems to protect them from being dwindled. For optimizing the technique, experiment was conducted. Nine pairs male female each were used. females both divided into three treatment groups (T1, T2 T3). Weight ranged 110 140g 80 105g respectively, same for 310 388g 180 260g respectively. C. injected a first dose 0.5, 1.0 1.5 mg PG kg-1 body weight followed by second 4.0, 4.5 5.0 respectively after 6 hours dose. doses L. as first, 4.5, 5.5 weight. A single males 2.0 Single pair mating performed semi-natural conditions nine separate hapas with continuous showering at temperature range 27-28 0C. highest average fertilization hatching obtained 87.88% 81.47% that 86.19% 75.00% T2.The percentage against comparatively low hormone this noteworthy.