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A Comparative Study on Freshwater Prawn (macrobrachium Rosenbergii) Farming Using Wild Source and Hatchery Produced Post Larvae (pl)

Dhiman Gain
Marine Environment and Resources Program, University of Basque Country, Spain.

Md. Sarower-E- Mahfuj
Laboratory of Aquaculture and Artemia Reference Center, Ghent University, Belgium

Nur Alam Mistri
Marine Environment and Resources Program, University of Basque Country, Spain.

Md. Sharif Hasan Sohag
Laboratory of Aquaculture and Artemia Reference Center, Ghent University, Belgium.

Abstract/ Executive Summary:

This study was conducted in the south-western part of Bangladesh. The information was collected through interviewing of 75 prawn farmers. Average stocking density and production in Khulna and Bagerhat region using wild post larvae (PL) were 7000 PL, 6750 PL and 167 and 159 kg/acre respectively and survival rate varied from 45 to 90 and 40 to 85% respectively. For hatchery produced PL the average stocking density, survivability and production in Khulna and Bagerhat region were 9000 PL, 53% and 124 kg/acre and 9250 PL, 55% and 120 kg/acre respectively. Results of the study identified net profit of 25924 BD taka in Khulna and 17742 BD taka in Bagerhat by using wild PL as well as 10581 BD taka in Khulna and 12163 BD taka in Bagerhat as a net profit by using hatchery PL. Lack of finance and appropriate technology, lack of proper feeding, scarcity of quality hatchery PL, scarcity of wild PL according to demand, diseases and inadequate extension work were major problems of prawn culture.

Keywords: Macrobrachium rosenbergii, prawn farming, production, Bangladesh

Location: Khulna and Bagerhat district

Start Date: 00-07-2012

End Date: 00-11-2012

Program Area: Animal Health and Management

Commodity: Prawn

Objectives:

To know the production performance of prawn farming using wild and hatchery sourced post larvae.

Methodology:

Study area and duration: The study area, Khulna and Bagerhat district lies between 21°41´ N-89°45´ E and 21°49´ N-89°98´ E in south-western and north-eastern part of Bangladesh. These two districts are well-known shrimp and prawn production zone in the southwestern part of Bangladesh. The case study was carried out in Dumuria and Fultala upazila of Khulna district and Fakirhat and Mollarhat of Bagerhat which are main prawn production areas (Figure 1). The study was conducted with a duration of five months from July, 2012 to November, 2012 during the season of prawn farming and marketing. Sampling framework: A total of 75 farmers and their farm were selected randomly from the case study area for questionnaire interviews. Primary data were composed employing effective techniques such as personal interview (home visit), focus group discussion (FGD), and crosscheck interviews with key informants such as conscious farmers, Upazila Fisheries Officers and relevant NGO workers. FGD was used to get an overview of particular issues such as existing farmer preference for PL, stocking density, survivability, production system, yield and economic returns, constraints of prawn farming etc. A total of five FGD sessions were conducted with farmers. Secondary data were collected from various government and fisheries affiliated institutions and also collected from websites and published literatures. Statistical analysis: The collected data were subjected to descriptive analysis by means of the computer software, Microsoft Excel 2007.

Source of Information: International Journal of Fisheries and Aquatic Studies 2015; 2(5): 137-141

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Culture of giant fresh water prawn plays an important role in the socio–economic condition of the people of Khulna and Bagerhat district. People are solely engaged in prawn farming due to its higher market value. In spite of several problems, the practice of prawn farming has offered an opportunity to increase incomes of farmers and associated groups of this region. But government help is very important in the development of prawn sector of south-west part. Farmers need enough credit facilities, good aquaculture practice training, and available quality PL for the further development of this sector.

Knowledge Management: Journal