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Farming of Giant Freshwater Prawn (macrobrachium Rosenbergii) in Bagerhat, Bangladesh

Shirin Akter
Department of Fisheries and Marine Bioscience, Jessore University of Science and Technology, Jessore-7408, Bangladesh

Md. Mer Mosharraf Hossain
Department of Fisheries and Marine Bioscience, Jessore University of Science and Technology, Jessore-7408, Bangladesh

Md. Mer Mosharraf Hossain
Department of Fisheries and Marine Bioscience, Jessore University of Science and Technology, Jessore-7408, Bangladesh

Sanjoy Banerjee Bappa
Department of Fisheries and Marine Bioscience, Jessore University of Science and Technology, Jessore-7408, Bangladesh

Bipul Kumar Dey
Department of Fisheries and Marine Bioscience, Jessore University of Science and Technology, Jessore-7408, Bangladesh

Md. Farid Uz Zaman
Department of Fisheries and Marine Bioscience, Jessore University of Science and Technology, Jessore-7408, Bangladesh

Abstract/ Executive Summary:

The study was carried out to know the present status of Macrobrachium rosenbergii culture in Bagerhat district, Bangladesh from March 2012 to January 2013. Education levels of farmers were found as illiterate (12.3%), primary (36.19%), secondary (20%), SSC (13.33%), HSC (12.38%) and graduate (5.71%). M. rosenbergii culture was the primary and secondary occupation of 80% and 20% farmers respectively. Average stocking density and production in extensive, improved extensive and semi-intensive culture were 9609, 11502 and 22847 per ha and 193, 284 and 488 kg/ha/year respectively; rearing period ranges from 6-10 months and survival rate varied from 55 to 60%. In improved extensive and semi-intensive culture 82.86% and 71.43% farmers applied farm-made feed instead of company feeds respectively and 11.43% and 37.14% farmers used both feeds. 91.43%, 80% and 68.57% respondents responded on normal to high mortality in extensive, improved extensive and semi-intensive culture respectively. Lack of finance and appropriate technology, scarcity of quality PL, diseases and inadequate extension work were major problems of prawn culture.

Keywords: Bagerhat, Macrobrachium rosenbergii, Culture, extensive, Improved extensive, Semi-intensive

Location: Bagerhat Sadar, a sub-district of Bagerhat district,

Start Date: 00-03-2012

End Date: 00-01-2013

Program Area: Farming System

Commodity: Prawn

Objectives:

This case study was conducted in Bagerhat district as a valuable region of M. rosenbergii culture, to know about the present status of culture practice and to identify the problems and limitations.

Methodology:

Study area and duration: The coastal area lies in the alluvial plains of Bangladesh between 89.00o E and 92.20o E in the northern and north-eastern part of the Bay of Bengal (Brown 1997). The study area, Bagerhat district is lies between 89’30” and 90’00” E. The case study was carried out in Bagerhat Sadar, a sub-district of Bagerhat district, a well-known shrimp and prawn production zone in the south-western part of Bangladesh (Figure 1). The total area of this district is 3959.11 km² and Bagerhat Sadar retains 272.73 km² and thus the study area covered 6.89% area of Bagerhat district and the duration of the study was March, 2012 to January, 2013. Sampling framework: Sample farms were selected randomly emphasizing on various culture strategies (extensive, improved extensive, semi-intensive). These culture strategies were categorized by following the categorizing keys (Table 1), emphasizing the stocking density. Stocking density were categorized as <12000 PL/ha, +12000-<18000 PL/ha and +18000-<25000 PL/ha respectively in extensive, improved extensive and semiintensive culture strategies. In every culture strategy 35 farmers were included that means 105 farmers totally. Primary data were composed employing effective techniques such as personal interview (home visit), focus group discussion (FGD), and telephonic interview and farmers were interviewed to collect the present culture techniques, production rate, diseases and other constraints in culture of giant freshwater prawn. The present diseases were identified by applying disease identifying keys. Secondary data were collected from various government and fisheries correlated institutions and also collected from websites and published literatures.

Source of Information: Journal of Fisheries, Volume 2 Issue 3 Pages: 187-194 December 2014

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Bagerhat district is famous for shrimp and prawn culture in Bangladesh but there are many existing problems in farming due to absence of remarkable extension work. On the other hand lack of finance, lack of technology supply and PL scarcity during proper stocking period are other important problems. So these problems should be mitigated to increase the production rate.

Knowledge Management: Journal