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Full-Text Articles in Medicine and Health Sciences
Oral Medication With Florfenicol For Black Tiger Shrimps Penaeus Monodon, Nutcharnart Tipmongkolsilp, Yanin Limpanon, Benjamas Patamalai, Pischa Lusanandana, Janenuj Wongtavatchai
Oral Medication With Florfenicol For Black Tiger Shrimps Penaeus Monodon, Nutcharnart Tipmongkolsilp, Yanin Limpanon, Benjamas Patamalai, Pischa Lusanandana, Janenuj Wongtavatchai
The Thai Journal of Veterinary Medicine
Florfenicol (FF) and Chloramphenicol (CAP) were tested for their in vitro antimicrobial activity against 102 Vibrio isolates from clinical cases. The Minimum Inhibitory Concentration (MIC) for both antimicrobials was ≤ 8 μg/ml suggesting that all of the tested isolates were susceptible to both antimicrobials. The observed MIC range of FF (0.5-4.0 μg/ml) was more potent than that of CAP (0.5-8.0 μg/ml). The activity of both antimicrobials was not substantially influenced by the addition of sea water (5 ppt salinity) to the test system. When considering the best type of antimicrobial for food producing animals and in vitro antivibrio activity, FF …
Acetylcholinesterase Activity And Total Haemocyte Count In Black Tiger Shrimps (Penaeus Monodon) Exposed To Trifluralin At Therapeutic Levels For Ectoparasitic Treatment, Phanupong Chaowanit, Apirak Pleanplak, Rujira Sangarun, Lila Ruangpan, Janenuj Wongtavatchai, Piyarat Chansiripornchai
Acetylcholinesterase Activity And Total Haemocyte Count In Black Tiger Shrimps (Penaeus Monodon) Exposed To Trifluralin At Therapeutic Levels For Ectoparasitic Treatment, Phanupong Chaowanit, Apirak Pleanplak, Rujira Sangarun, Lila Ruangpan, Janenuj Wongtavatchai, Piyarat Chansiripornchai
The Thai Journal of Veterinary Medicine
Trifluralin, a herbicide, was observed for it's side effects when used, extralabel, as an ectoparasiticide in shrimp farming. Black tiger shrimp were exposed to trifluralin at a therapeutic level, commonly employed in shrimp farming, 0.1 or 0.2 ppm, for up to 96 hrs. Shrimp were examined 96 hrs after the primary dosage of trifluralin. The total haemocyte count in the exposed shrimp was not different from the control, unexposed shrimp. A significant reduction of muscle acetylcholinesterase was found in all exposed shrimp (p<0.05). Some of the exposed shrimp also demonstrated clinical signs of cholinergic overload characterized as abnormal movement. This study suggests sublethal effects when trifluralin is used for the treatment of shrimp ectoparasitic disease.
Antimicrobial Susceptibility Tests On Vibrio Pathogens From Black Tiger Shrimps Penaeus Monodon, Nithawan Jarernporn, Cholthida Bantaokul, Nutcharnart Tipmongkolsilp, Monthon Lertworapreecha, Janenuj Wongtavatchai
Antimicrobial Susceptibility Tests On Vibrio Pathogens From Black Tiger Shrimps Penaeus Monodon, Nithawan Jarernporn, Cholthida Bantaokul, Nutcharnart Tipmongkolsilp, Monthon Lertworapreecha, Janenuj Wongtavatchai
The Thai Journal of Veterinary Medicine
The standard, in vitro, minimal inhibitory concentrations (MICs) of 5 antimicrobials; chloramphenicol, ciprofloxacin, enrofloxacin, norfloxacin and nalidixic acid were evaluated against vibrios isolated from diseased black tiger shrimps Penaeus monodon. One hundred and ninety-seven pathogenic vibrio isolates obtained from different shrimp culture areas in Thailand during March 2001-January 2002 were, V. fluvialis (50 isolates, 25.38%), V. damsela (41 isolates, 20.81%), V. vulnificus (39 isolates, 19.80%), V. parahaemolyticus (28 isolates, 14.21%), V. cholerae (25 isolates, 12.69%) and V. alginolyticus (14 isolates, 7.11%). MICs were examined for all the tested antimicrobials and the degree of susceptibility of shrimp vibrio pathogens to each …