Author(s): Basir Ahammad, Mohammed Khandaker, Aishi Hamom, Md. Sourove Islam, Shudipta Ahmed Shobho, Shahrear Hemal and Debarshi Bhattacharjee

Abstract: A quest was conducted to assess the existing technologies used by the fish farmers and its impact on the fish production in north east region of Bangladesh (Sylhet district) from July, 2015 to June 2016. Three upazilas were selected as experimental sites viz. Sylhet sadar, South surma and Golapganj under Sylhet district. There were highly significant differences (P≤0.05) in the uses of cow-dung, urea, triple superphosphate (TSP), lime, rice barn and mustard oil cake between semi-intensive to extensive culture technology in the farmer level. Cost item parameters such as fingerlings, feed, fertilizers, human laborers, harvesting and marketing and miscellaneous also revealed highly significant difference (P≤0.05) between semi-intensive and extensive culture technology except for land use cost (P≥0.05) and production output also expressed similar result. The mean values of the parameter net profit for extensive and semi-intensive culture were 78330.00±19223.85 tk/ha/yr and 419470.00±368024.69 tk/ha/yr respectively. In epilogue, semi-intensive technology had a highly positive impact on fish production as well as it was more profitable for aquaculture in north east region of Bangladesh (Sylhet district).

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