Aqua chemicals in shrimp farm: A study from south-west coast of Bangladesh

Shamsuzzaman, Md. Mostafa; Biswas, Taposh Kumar

doi:10.1016/j.ejar.2012.12.008

Cited by 69 publications

(40 citation statements)

References 1 publication

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“…() that 3.0% salt failed to reduce bacterial abundance on rainbow trout eggs and that salt was helpful for controlling fungi but not useful for control bacteria. In addition, Mostafa Shamsuzzaman and Biswas () stated that salt is effective disinfectant for treatment external parasites and fungi. These results indicate that common salt is effective for controlling fungal growth and not useful for controlling external bacteria (Suomalainen, Tiirola & Valtonen and Wagner et al .…”

Section: Discussionmentioning

confidence: 99%

Efficacy of formalin, iodine and sodium chloride in improvement of egg hatching rate and fry survival prior to the onset of exogenous feeding in yellow perch

2015

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Egg disinfection is considered the most important routine work in hatcheries to avoid fungal and/or bacterial infection of fish eggs. The aim of this study was to determine the effectiveness of three disinfectants: formalin, iodine and sodium chloride on the hatching success of yellow perch eggs. The disinfectants were tested in triplicate at different concentrations for 15 and 30 min bath treatments. Two experiments were conducted; formalin at five concentrations (25, 50, 100, 150 and 200 mg L−1) and 25 mg L−1 iodine were tested in the first experiment. The second experiment involved formalin at three concentrations (250, 500 and 1000 mg L−1), iodine at three concentrations (50, 100 and 250 mg L−1) and sodium chloride at three concentrations (500, 1000 and 3000 mg L−1) were used. Iodine and sodium chloride‐treated eggs hatched earlier than formalin‐treated eggs. The highest mean percentage of eyed stage, hatching rate and survival to first feeding fry was observed at 200 mg L−1 formalin for 30 min, 50 mg L−1 iodine for 15 min and 500 mg L−1 sodium chloride for 30 min. High concentrations of formalin (1000 mg L−1), iodine (250 mg L−1) and sodium chloride (1000 and 3000 mg L−1) showed toxicity to yellow perch eggs, resulting in low hatching rate and survival to first feeding fry. We recommended formalin at a concentration of 150–200 mg L−1 for 30 min as an effective, easily available and low‐cost disinfectant for routine use to improve yellow perch hatchability.

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Section: Discussionmentioning

confidence: 99%

Efficacy of formalin, iodine and sodium chloride in improvement of egg hatching rate and fry survival prior to the onset of exogenous feeding in yellow perch

2015

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“…When faced with disease problems, the common response has been the application of antimicrobial drugs. Wide ranges of chemicals, particularly antimicrobial agents, are being used in shrimp farming to prevent and treat diseases (Aftabuddin, Kader, Kamal & Zafar, ; Rodgers & Furones, ; Shamsuzzaman & Biswas, ). Use of probiotics and prebiotics in place of antimicrobials in aquaculture has been reviewed by Akhter, Wu, Memon and Mohsin () and Dawood and Koshio ().…”

Section: Introductionmentioning

confidence: 99%

Histopathological changes in giant freshwater prawnMacrobrachium rosenbergii(de Man 1879) fed with probioticBacillus licheniformisupon challenge withVibrio alginolyticus

et al. 2017

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The effect of dietary supplementation of probiotic bacterium Bacillus licheniformis on the histopathological changes in Macrobrachium rosenbergii juveniles (4.0 AE 0.02 g) challenged with known pathogenic strain of Vibrio alginolyticus are reported. Two isocaloric basal diets supplemented with probiotic bacteria B. licheniformis (1.0 9 10 9 cfu/g feed) and other without probiotic supplementation were fed to the M. rosenbergii juveniles for 45 days. The histological observations revealed no significant changes in the hepatopancreas and gut tissues of both the experimental and the control groups which indicate that the present bacterium is a safe candidate probiont for the host. Prawns were challenged with V. alginolyticus after 45 days of feeding with probiotic diet. The histopathological studies of the hepatopancreas revealed that M. rosenbergii fed with probiotic-supplemented diet showed less changes as compared to the prawns fed with control diet on second and fourth day of post-experimental challenge with V. alginolyticus. Histopathological observations revealed that the gills of the prawns fed with control diet were severely affected in comparison to the prawns fed with probiotic-supplemented diet after challenging with V. alginolyticus. Results from this study revealed the improved protection by dietary incorporation of B. licheniformis in reducing the histopathological manifestations due to V. alginolyticus infection in freshwater prawn. K E Y W O R D S Bacillus licheniformis, histopathology, Macrobrachium rosenbergii, probiotic

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“…The waste discharge and chemical spills associated with boat repairing industries represent an additional source of pollutants to the water and sediments in this area. In common, zinc oxide (ZnO) is roughly used in aqua farms and hatcheries for oxygen supply to fry and fingerlings (Shamsuzzaman and Biswas 2012). Considering ship repairing, painting and coating, a huge amount of commercial paints containing zinc oxide (ZnO) and zinc sulphide (ZnS) have long been used as anticorrosive coatings in different type of boats, fishing trawlers and ships in Cos'x Bazar and Chittagong coast to protect the wood and steel structures of these water vehicles.…”

Section: Resultsmentioning

confidence: 99%

“…It is broadly used as an effective algaecide and in some parasites treatment. The cheapest and most commonly used form is copper sulfate (CuSO 4 ) (Watson andYanong 1989, Shamsuzzaman andBiswas 2012). Moreover, Pb can be carried in water, either dissolved or as waterborne particles.…”

Section: Resultsmentioning

confidence: 99%

Monitoring of seasonal variation of some trace metals concentration in surface water collected from the coastal area of Bangladesh

Raknuzzaman

Mamun

Ahmed

et al. 2018

J. Biodivers. Conserv. Bioresour. Manag.

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This study was conducted to determine the seasonal variation of Cr, Ni, Cu, Zn, As, Cd and Pb concentrations in water from four coastal sites of Bangladesh. The mean concentrations of trace metals in the water samples in the range of each elements were µg/l) in winter. The mean concentrations of the metals in water followed a decreasing order of Zn > Cu > Pb > Ni > Cr > As > Cd in the summer and Zn > Ni > Cr > Cu >Pb > As > Cd in the winter. The water of Cox's Bazar hatchery site showed the highest levels of Zn (1390), Cu (510) and Pb (109 µg/l) in summer while As (19.7 µg/l) showed highest in Cox's Bazar Bakkhali estuary in the winter samples. The elevated level of Ni (77.5 µg/L) in the summer and Cr (43.7 µg/l) in the winter water samples were also found in the Sundarbans site. The mean concentrations of all estimated trace metals were higher in the winter than in the summer season. It was both in the Chittagong port and Meghna estuary. For the Meghna estuary, the highest concentration of Zn (36.0 µg/l) was observed in the water sample of winter season. Some trace metals exceeded the international quality guidelines. Suspended solid, temperature, rainfall, anthropogenic inputs and geomorphologic setup are influenced by seasonal vagaries which alter the variation of metal distribution.

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Aqua chemicals in shrimp farm: A study from south-west coast of Bangladesh

Cited by 69 publications

References 1 publication

Efficacy of formalin, iodine and sodium chloride in improvement of egg hatching rate and fry survival prior to the onset of exogenous feeding in yellow perch

Efficacy of formalin, iodine and sodium chloride in improvement of egg hatching rate and fry survival prior to the onset of exogenous feeding in yellow perch

Histopathological changes in giant freshwater prawnMacrobrachium rosenbergii(de Man 1879) fed with probioticBacillus licheniformisupon challenge withVibrio alginolyticus

Monitoring of seasonal variation of some trace metals concentration in surface water collected from the coastal area of Bangladesh

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