scholarly journals Evaluation of the status of use of chemicals and antibiotics in freshwater aquaculture activities with special emphasis to fish health management

1970 ◽  
Vol 6 (2) ◽  
pp. 381-390 ◽  
Author(s):  
MAR Faruk ◽  
MM Ali ◽  
ZP Patwary
Keyword(s):  
Health Management ◽  
Growth Promotion ◽  
Group Discussion ◽  
Current Status ◽  
Personal Contact ◽  
Pharmaceutical Companies ◽  
Fish Health ◽  
Freshwater Aquaculture ◽  
The Status ◽  
Animal Medicine

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

scholarly journals Status of chemicals and aqua-drugs used for freshwater fish health management at Rangpur district of Bangladesh

2020 ◽  
Vol 6 (2) ◽  
pp. 283-293
Author(s):  
Soumen Das ◽  
Mst Nahid Akter ◽  
Mst Masuma Khatun
Keyword(s):  
Water Quality ◽  
Health Management ◽  
Group Discussion ◽  
Water Quality Management ◽  
Pond Water ◽  
Time Frame ◽  
Personal Contact ◽  
Fish Health ◽  
Growth Promoters ◽  
Time Of Application

In order to know the existing situation of different chemicals and aqua-drugs used for fish health management an investigation was conducted following a time frame of May, 2019 to October, 2019 at Rangpur district of Bangladesh. Data were collected from the randomly selected fish farmers, company representatives and chemical sellers through questionnaire interview, personal contact and Focus Group Discussion (FGD). Farmers were facing several water quality problems associated with different fish diseases. To overcome those obstacles they use variety of chemicals inclulding lime, salt, potassium permanganate, urea, TSP, phitkiri and copper sulphate. Farmers used different chemicals for various purposes like Aquapure, Biopond, Zeofresh, JV-zeolite, Zeorich, Megazeo plus, Geo-ren etc. for pond preparation and water quality management; Sumithion, Engreb, I-mec, Sanmarine etc. for eradication of unwanted species; Oxymax, Oxymore, Oxylife, Aci-ox, Oxyrich, Oxy-aqua, Oxyren etc. to increase oxygen concentration and Gasonil, Gastrap, Bioaqua-50, Gasonex, Metrix, Pondkleen etc. for reducing harmful gases in pond water. Used disinfectants like Timsen, Virex, Polgard+, , Micronil etc.; antibiotics include Renamycin, Eskamycin, Bactitab, Cotrim vet bolus, Chemycin, Aquamycin etc.; Aqua photo, Safegut, Biomax, Profs, Pond care etc. were the used probiotics where various growth promoters include Panvit aqua, Nutrigel, Aquazyme, Spa gelly, Charger gel etc. Some problems were reported regarding the use of chemicals such as their indiscriminate use, method of application, time of application and inappropriate doses. Asian J. Med. Biol. Res. June 2020, 6(2): 283-293

scholarly journals Investigation on fish health and diseases in rural pond aquaculture in three districts of Bangladesh

2014 ◽  
Vol 11 (2) ◽  
pp. 377-384 ◽  
Author(s):  
MM Hasan ◽  
MAR Faruk ◽  
IZ Anka ◽  
MAK Azad
Keyword(s):  
Health Management ◽  
Group Discussion ◽  
Silver Carp ◽  
The Body ◽  
Catla Catla ◽  
Hypophthalmichthys Molitrix ◽  
Fish Health ◽  
Pond Aquaculture ◽  
Pangasianodon Hypophthalmus ◽  
Treatment Measures

The present study was conducted to know the culture strategies and fish health and disease problems in pond aquaculture in Mymensingh, Bogra and Pabna districts of Bangladesh. Questionnaire interview and participatory rural appraisal tools like focus group discussion (FGD) were conducted with selected fish farmers. In total 90 farmers were interviewed and 9 FGD sessions were conducted. Most of the respondents practiced carp and pangas polyculture and they had disease problems in their ponds. Prevalence of fish disease varied with cultured species and locations. The most prevalent diseases as reported by the farmers were pop eye (57.78%), ventral reddening (55.55%), tail and fin rot (48.89), hemorrhagic lesion over the body surface (45.56%), dropsy (40%), gill rot (40%), white spot (40%) and epizootic ulcerative syndrome or EUS (33.33%). According to farmers opinion most susceptible species to disease was silver carp, Hypophthalmichthys molitrix (57.78%); followed by mrigal, Cirrhinus cirrhosus (50%); catla, Catla catla (47.78%); sarputi, Barbodes gonionotus (47.78%); rui, Labio rohita (42.22%) and pangas, Pangasianodon hypophthalmus (42.22%). Higher mortality was found in pangas (53.56%). Clinically, pangas, koi and sarputi were found severely affected. Most of the farmers used some treatment measures against disease problems. This study also highlited some fish health management problems in pond aquaculture. Further studies should include identification and characterization of pathogens involved in different types of diseases in pond aquaculture. DOI: http://dx.doi.org/10.3329/jbau.v11i2.19944 J. Bangladesh Agril. Univ. 11(2): 377-384, 2013

Present status of using aqua medicines and chemicals on fish health management in Bogura district, Bangladesh

2020 ◽  
Vol 7 (1) ◽  
pp. 129-138
Author(s):  
Mst Nahid Akter ◽  
Gobindo Sarker ◽  
Md Mozahar Ali ◽  
Md Abu Zafar
Keyword(s):  
Focus Group ◽  
Data Collection ◽  
Focus Group Discussion ◽  
Present Status ◽  
Health Management ◽  
Group Discussion ◽  
Growth Promoter ◽  
Fish Health ◽  
Active Ingredients ◽  
Trade Names

In order to understand the existing status of aqua-medicines and chemicals in aquaculture activities present investigation was conducted from January to June 2017 in four upazilas of Bogura district namely, Bogura Sadar, Sherpur, Kahaloo and Shibganj. Questionnaire and focus group discussion were used for data collection. Among the latest aquachemicals, geotox, jv zeolite, mega plus, aquastar pond, acme's zeolite, zeo-fresh, aqua green, biomin pond life, aquakleen, megagio gold, and aqua boost were extensively used. Probiotics like profs, aqua photo, aqua gold, super biotic and pond care were used. The selected farmers used growth promoter such as saltose, panvit aqua, spa gelly, aqua boost and bio-pond, bio-grow, aqua pure, gasstrap, metrix, geo-rich bio-aqua 50 and aqua magic were used as toxic gas reducer. Approximately 11 trade names of antibiotics were marketed in the selected area. Their main active ingredients were chlortetracycline, oxytetracycline, amoxicillin, co-trimoxazole, azithromycin and sulphadiazine. The survey identified some problems connected with the practice of such chemicals such as shortage of fish farmer’s knowledge about the usage of chemicals, proper dosage and their maintenance. Res. Agric., Livest. Fish.7(1): 129-138, April 2020

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
Keyword(s):  
Health Management ◽  
Group Discussion ◽  
Viral Disease ◽  
Brown Spot ◽  
Current Status ◽  
White Spot Disease ◽  
Spot Disease ◽  
Average Family Size ◽  
Environmental Disease ◽  
Key Informant Interview

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

scholarly journals Aqua-drugs and chemicals: impact on fish health and production in Mymensingh, Bangladesh

2015 ◽  
Vol 2 (1) ◽  
pp. 161-168
Author(s):  
Gias Uddin Ahmed ◽  
Md Towhid Hasan ◽  
Md Ali Reza Faruk ◽  
Md Khalilur Rahman ◽  
Md Nazmul Hoque
Keyword(s):  
Potassium Permanganate ◽  
Group Discussion ◽  
Personal Contact ◽  
Fish Disease ◽  
Fish Health ◽  
Disease Treatment ◽  
Average Recovery ◽  
Different Types ◽  
Rural Appraisal ◽  
Drug Sellers

Correction: On 29th April 2015 the page numbers of this article were changed from 159-166 to 161-168.The present study was conducted to evaluate the impacts of aqua-drugs and chemicals on fish health and production in Mymensingh, Bangladesh from July 2013 to June 2014. Data were collected through personal contact, market survey, focus group discussion and participatory rural appraisal with fish farmers, associations and aqua-drug sellers. Fifty five different types of aqua-drugs and chemicals were recorded in the study area, among those, 20 types were widely used by the farmers for different fish disease treatment. It was recorded that renamycine, cotrim vet, ossi-c, polgard plus and timsen were used for the treatment of EUS in pangus, tilapia and koi which had an average recovery of 75-85%. For the treatment of edwardsiellosis in pangus and koi, farmers used potassium permanganate, timsen, polgard plus, geolite gold and renamycine which had an average recovery of 65-80%, and for the treatment of dropsy in tilapia, aquamycine, ossi-c and potassium permanganate were used which had an average of 80-85% recovery. Histopathology of gill and liver of fishes were almost normal in control ponds, whereas, in drugs treated ponds the organs had pathological changes like necrosis, pyknotic cells, hemorrhage, hypertrophy, lamellar missing, talengiactasis and vacuums. However, production of pangus, tilapia and koi was 12000 kg/acre, 15000 kg/acre and 14000 kg/acre in drug treated ponds respectively, whereas, it was 5000 kg/acre, 9000 kg/acre and 8000 kg/acre in non-treaded ponds respectively.Res. Agric., Livest. Fish.2(1): 161-168, April 2015

scholarly journals Evaluation of the status of threatened catfish Bagarius bagarius (Hamilton, 1822) from the Padma and Meghna river stretches of Bangladesh

2019 ◽  
Vol 28 (1) ◽  
pp. 111-119
Author(s):  
Bijoya Paul ◽  
Md Foijul Hasan ◽  
Md Monirul Islam ◽  
Goutam Kumar Kundu ◽  
Gouri Mondal ◽  
...  
Keyword(s):  
Natural Waters ◽  
Group Discussion ◽  
Iucn Red List ◽  
Red List ◽  
Current Status ◽  
Natural Habitats ◽  
The Status ◽  
Game Fish ◽  
Riverine Habitats ◽  
Threatened Status

Bagarius bagarius (Hamilton, 1822), a freshwater catfish species, is important as food and game fish in Bangladesh, Bhutan, India and Nepal. In Bangladesh, it is known as Baghair and has been enlisted as critically endangered (CR) species in the IUCN Red List of Bangladesh 2000 and 2015, under the criteria A2cd version 3.1 mentioning declining trend in its population around 80% during the last 25 years (3 generation time). We studied the abundance of B. bagarius at 8 sites in three riverine habitats. We identified 8 individuals of B. bagarius from the Meghna river only (Shibpur site, Bhola Sadar). However, focus group discussion with fishers revealed that the species was frequently present in the catch from the river, although the abundance reduced considerably over the decade. We also found several other studies which reported the abundance of B. bagarius in different natural habitats. The findings from this study in combination with other published literature in the last 5 years indicated that the current status of B. bagarius in natural waters in Bangladesh do not fall below the threshold limits of CR species. Therefore, B. bagarius should be reclassified into a lower threatened status (but not Least Concern) than the current CR. Dhaka Univ. J. Biol. Sci. 28(1): 111-119, 2019 (January)

scholarly journals Dental Applications of Carbon Nanotubes

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4423
Author(s):  
Marco A. Castro-Rojas ◽  
Yadira I. Vega-Cantu ◽  
Geoffrey A. Cordell ◽  
Aida Rodriguez-Garcia
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Oral Cavity ◽  
Current Status ◽  
Glass Ionomer ◽  
Oral Infections ◽  
Functional Behavior ◽  
The Status ◽  
Comprehensive Survey ◽  
Dental Applications

Glass ionomer cements and resin-based composites are promising materials in restorative dentistry. However, their limited mechanical properties and the risk of bulk/marginal fracture compromise their lifespan. Intensive research has been conducted to understand and develop new materials that can mimic the functional behavior of the oral cavity. Nanotechnological approaches have emerged to treat oral infections and become a part of scaffolds for tissue regeneration. Carbon nanotubes are promising materials to create multifunctional platforms for dental applications. This review provides a comprehensive survey of and information on the status of this state-of-the-art technology and describes the development of glass ionomers reinforced with carbon nanotubes possessing improved mechanical properties. The applications of carbon nanotubes in drug delivery and tissue engineering for healing infections and lesions of the oral cavity are also described. The review concludes with a summary of the current status and presents a vision of future applications of carbon nanotubes in the practice of dentistry.

Institutional repositories in Africa: Regaining direction

2021 ◽  
pp. 026666692110154
Author(s):  
Usman Ahmed Adam ◽  
Kiran Kaur
Keyword(s):  
Open Access ◽  
Research Output ◽  
Current Status ◽  
African Countries ◽  
Institutional Repositories ◽  
Widespread Implementation ◽  
Typical Performance ◽  
The Status ◽  
Global Access ◽  
And Cluster Analysis

Institutional repositories are powerful tools to facilitate global access to intellectual output by members of the institution, particularly in assisting them to preserve and maximize access to their research output globally. This exploratory study of the status of institutional repositories implementation in African countries using the global Directory of Open Access Repositories (OpenDOAR) and Transparent Ranking: All Repositories by Google Scholar, reports on the operational status and the performance of repositories. Factor analysis and cluster analysis are used to analyze the operational level of institutional repositories in African countries. The analysis showed that the typical performance of institutional repositories remains below average. The possibility of global open access to research results through institutional repositories in South Africa, Kenya, Nigeria, Algeria, Sudan, and Egypt appeared to be relatively more feasible than other African countries. This study concludes that many organizations, institutions, and societies spend great efforts in support of open access implementation in Africa, however, the widespread implementation of institutional repositories is still very slow paced, and the performance of the implemented repositories was below expectation. Suggestions for regaining the intended direction of African institutional repositories are given based on the current status.

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