Production performance of Pabda (Ompok pabda) and Gulsha (Mystus cavasius) with Rohu (Labeo rohita) in polyculture management

Abstract

The study was carried out in on-farm condition during May to October 2017 in Kapashia Upazila,
Gazipur. Three stocking densities of Pabda (Ompok pabda) and Gulsha (Mystus cavasius) were tested
keeping the Rohu (Labeo rohita) stocking density the same. The stocking densities of Pabda and Gulsha
fingerlings in Treatments-1, 2 and 3 were 125,000 and 50,000; 187,500 and 75,000; 250,000 and
100,000/ha, respectively. In all the treatments, the stocking density of Rohu was the same (1250/ha).
Supplemental feed having30% crude protein was applied at the rate 2-10% of the body weight in all the
ponds. After five months of rearing, highest production (8690±249 kg/ha) was obtained from Treatment-3,
where Pabda and Gulsha were stocked at highest stocking density whereas; lowest production was obtained
in Treatment-1 (5875±458). The production levels showed significant difference (p<0.05) between
Treatment-1 with Treatment-2 and Treatment-3. However, no significant difference was observed between
Treatment-2 and Treatment-3 (p>0.05). The study concludes that Pabda and gulsha if stocked with rohu at
a density of 250,000 and 100,000/ha respectively will give higher production.