Farming of giant freshwater prawn (Macrobrachium rosenbergii) in Bagerhat, Bangladesh

Abstract

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.

Socio–economic aspects of the integrated gher farming system of Dhopakhali union at Kachua upazila in Bagerhat district, Bangladesh

“…After interviewing with the farmers, it was found that most of the farmers (53%) were illiterate, while 13% had primary education, 27% had secondary education and 7% had higher education (Figure 5). In the present study, 66% of the farmers acquired below SSC level of education due to poor education facilities, which was similar to Akter et al (2014), who reported that 68% of the farmers acquired below SSC level education in Bagerhat district and also reported that the farmers were educated below SSC level (Akter et al, 2014).…”

“…According to Ahmed et al (2008), prawn farmers practiced a stocking density of 19,830-21,155 PL/ha. Average stocking densities of PL varied in extensive, improved extensive and semiintensive culture systems at 9,609, 11,502 and 22,847 PL/ha, respectively (Akter et al, 2014). Alam et al (2007), and Barmon et al (2007) also reported the average stocking densities of prawn to be 1,500-15,000 PL/ha and 7,411-39,520 PL/ha, respectively.…”

“…It was found in the survey area that 47% farmers were experienced with >30 years of gher farming system, 33% with 15-29 years and 20% with <15 years of farming system (Figure 4a). Akter et al (2014) reported that the maximum, minimum and average farming experience of farmers were 25, 3 and 13 years, respectively in Bagerhat district (Akter et al, 2014).…”

Una contribución al entendimiento sobre el cultivo en fases del langostino Macrobrachium rosenbergii en Costa Rica

“…Una de las enfermedades más comunes son las manchas negras causadas frecuentemente por bacterias que atacan la cutícula (Johnson y Bueno, 2000). En Bangladesh, la enfermedad de la mancha negra o de la branquia negra es la más común desde que siembran las PL's hasta la cosecha, causando mortalidades masivas y las mayores pérdidas económicas (Akter et al, 2014).…”

Identification of sex linked molecular markers in Indonesian giant freshwater prawn Macrobrachium rosenbergii

“…Due to the excellences of giant freshwater prawn caused vivid giant freshwater prawn culture in some countries in Southeast Asia, South Asia, and North Australia. Nowadays, giant freshwater prawn culture is massively developed in various countries, such as in United States of America and China (Akter et al, 2014;Zafar et al, 2015;David et al, 2018). In 2009-2012, the production of giant freshwater prawn has contributed over 57.1% of the total production of freshwater prawn Macrobrachium sp.…”