scholarly journals Commonly used chemicals in shrimp ghers at Shyamnagar upazila in Satkhira, Bangladesh

2015 ◽  
Vol 2 (2) ◽  
pp. 343-351
Author(s):  
Mohammad Masud Kamal ◽  
Md Rafiqul Islam Akhand ◽  
Binay Kumar Roy

The study was carried out to know the purpose of the use of chemicals and current status of chemicals used in various aquaculture activities in Shyamnagar upazila between August 2007 and February 2008. A total of 50 shrimp farmers and chemical sellers were selected for questionnaire interview. Data were collected through PRA tools like questionnaire interview, Focus Group Discussion and key informant interview. All interviewed farmers were male with an average age of 36-45 years and their average family size was 7 members. Commonly used chemicals found in the study area were lime, urea, Triple super phosphate (TSP), Potassium permanganate, Vitamins, Antibiotics, (mainly oxytetracycline and chlorotetreacycline), rotenone, phosphate, phostoxin, sumithion, melathion, timsen, bioaqua, oxymax/oxyflow, aquanarish, aqua clean and théoden. Health management and disease treatment were the major activities where farmers were seen to use a lot of chemicals. Study identified some diseases and conditions like white spot disease, yellow head disease, heavy gill and surface fouling disease, brown spot disease, nutritional disease and environmental disease. This study demonstrated that most of the farmers used chemicals and antibiotics indiscriminately without knowing their mode of action, doses and appropriate procedure of application. Study also shows that farmer used various types of chemicals but did not get benefit only little exception due to shrimp viral disease. The study also highlighted the names and approximate price of aquaculture chemicals available with the chemical sellers in the study areas.Res. Agric., Livest. Fish.2(2): 343-351, August 2015

1970 ◽  
Vol 6 (2) ◽  
pp. 381-390 ◽  
Author(s):  
MAR Faruk ◽  
MM Ali ◽  
ZP Patwary

The study was carried out to understand current status of use of chemicals and antibiotics in fish health management in freshwater aquaculture activities. Data were collected through questionnaire interview, personal contact, market survey and participatory rural appraisal like focus group discussion with fish and prawn farmers, retailers of animal medicine and representatives of pharmaceutical companies. A range of chemicals including antibiotics were found available in market. Fish health management and disease treatment were the major areas where majority of such chemicals have been used. Other uses included pond preparation and management, growth promotion and improvement of water quality to enhance pond productivity. Commonly found traditional chemicals in health management included Lime, Salt, Potassium permanganate, Sumithion, Melathion, Formalin, Bleaching powder and Malachite green. Of the new products JVzeolite, Geotox, Green zeolite, Orgavit aqua, Fish vitaplus, AQ grow-G, Oxy flow, Oxy max and O2-marine were most widely used compounds. Fourteen branded antibiotics were found in market of which Oxysentin, Renamox, Renamycin and Orgamycine were being widely used. Thirty three pharmaceutical companies were producing and marketing these products. The study also identified the problems associated with the use of chemicals which included lack of knowledge regarding use of chemicals, appropriate dose, method of application and indiscriminate use of chemicals. Keywords: Chemicals; Antibiotics; Aquaculture; Health management DOI: 10.3329/jbau.v6i2.4838 J. Bangladesh Agril. Univ. 6(2): 381-390, 2008


Author(s):  
A I Bhat, C N Biju ◽  
V Srinivasan, S J Ankegowda K S Krishnamurthy

Black pepper and cardamom are the important spice crops grown in India and other countries. Viruses are one of the major yield limiting factors in both these spice crops. Viral diseases spread at a faster rate in these spices, as they are vegetatively propagated. Lack of sensitive detection methods has led to the widespread distribution of viral diseases in all black pepper and cardamom growing regions. The viruses infecting these two spice crops have now been identified; characterized and sensitive diagnostics have been developed. Integration of various approaches like use of resistant varieties, virus-free planting materials, vector control and cultural methods are required for the management of viral diseases. Rejuvenation of viral disease affected black pepper plantations through proper soil and plant health management were proved to be successful. The present review deals with characterization, diagnosis and management of viral diseases affecting black pepper and cardamom.


1986 ◽  
Vol 50 (6) ◽  
pp. 1597-1606 ◽  
Author(s):  
Yoshiki KONO ◽  
J. M. GARDNER ◽  
Yoshikatsu SUZUKI ◽  
Setsuo TAKEUCHI

Author(s):  
Sompit Yaemkasem ◽  
Visanu Boonyawiwat ◽  
Manakorn Sukmak ◽  
Sukanya Thongratsakul ◽  
Chaithep Poolkhet

2021 ◽  
pp. 335-342
Author(s):  
P. Reis ◽  
C. Rego ◽  
M. Mota ◽  
T. Comporta ◽  
C.M. Oliveira

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