Production performance of Pabda (Ompok pabda) and Gulsha (Mystus cavasius) with Rohu (Labeo rohita) in natural pond conditions


  • PARVEZ CHOWDHURY Bangladesh Fisheries Research Institute



Ompok pabda, Mystus cavasius, Labeo rohita, Polyculture


The study was carried out infourselected farmer’s pond in Netrokona sadarand Barhatta upazillas
(sub district) under Netrokona district during April to September 2019 having average pond area of 0.14 ha
each. The ponds were prepared by removing aquatic vegetation and unwanted fish and other animals, and
applying with lime at the rate of 250 kg/ha. Five days after liming, water was supplied from shallow tube
well to the ponds and filled up to the depth of 1.5 m. The fry of Pabda (Ompok pabda) and Gulsha (Mystus
cavasius) with Rohu (Labeo rohita) were stocked at the rate of 175000; 87,500 and 2000/ha, respectively.
After stocking, fish were fed at a rate of 5-12% of body weight with supplementary feed (30% crude
protein). Fish sampling were done at monthly interval to know the fish growth status and also to adjust feed
ration. After six months rearing, fish were harvested by repeated seine netting. Total bulk weight and number
of fish from each pond was recorded. Survival and gross production of fish of each pond were estimated. The
harvesting weight of pabda ranged from 33 to 36g. While the harvesting weight of Gulsha and Rohu ranged
from 26-27g and 591-614g, respectively. Based on the number of fish harvested at the end of the experiment,
survival ranged from 75 to 88%.Total production of Pabda (O. pabda) and Gulsha (M. cavasius) with Rohu
was estimated at 5202, 1772 and 1066 kg/ha, respectively. The total production of fish as recorded in trial
ponds were 8043 kg/ha


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