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 การประชุมวิชาการA COMPARATIVE STUDY BETWEEN FORMALIN AND FORMALIN FREE FIXATIVE IN MORPHOLOGICAL FEATURES OF THE FELINE TESTISผู้แต่ง: Dr.naparee Srisowanna, Lecturer , Dr.Urai Pongchairerk, Assistant Professor, Dr.SIRIN THEERAWATANASIRIKUL, Associate Professor , Dr.Suppada Kananub, Assistant Professor, Ms.Maneenooch Khiao-in, Lecturer , การประชุมวิชาการ: 
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 ผลงานตีพิมพ์ในวารสารวิชาการComparison of a Urine Antigen Assay and Multiple Examinations with the Formalin-Ethyl Acetate Concentration Technique for Diagnosis of Opisthorchiasisผู้แต่ง: Chanika Worasith, Anchalee Techasen, Kunyarat Duenngai, Kitti Intuyod, Dr.Kulthida Yasaka, Assistant Professor, Jiraporn Sithithaworn, Watcharin Loilome, Thomas Crellen, Melissa R. Haswell, Paiboon Sithithaworn, วารสาร:  
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ผลงานตีพิมพ์ในวารสารวิชาการEVALUATION OF A COMMERCIAL STOOL CONCENTRATOR KIT COMPARED TO DIRECT SMEAR AND FORMALIN-ETHYL ACETATE CONCENTRATION METHODS FOR DIAGNOSIS OF PARASITIC INFECTION WITH SPECIAL REFERENCE TO OPISTHORCHIS VIVERRINI SENSU LATO IN THAILANDผู้แต่ง:Dr.Nonglak Laoprom, Assistant Professor, Laithavewat, L, Kopolrat, K, Kiatsopit, N, Kaewkes, S, Chantalux, S, Mongkolsin, C, Chanmaha, B, Andrews, RH, Petney, TN, Sithithaworn, P, วารสาร: 
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ผลงานตีพิมพ์ในวารสารวิชาการPerformances of Mini Parasep? SF stool concentrator kit, Kato-Katz, and formalin-ethyl acetate concentration methods for diagnosis of opisthorchiasis in Northeast Thailandผู้แต่ง:Dr.Kulthida Yasaka, Assistant Professor, Seri Singthong, Narong Khuntikeo, Watcharin Loilome, Chanika Worasith, Chutima Homwong, Chompunoot Wangboon, Patiwat Yasaka, Chatanun Eamudomkarn, Opal Pitaksakulrat, Krisnakorn Tonkhamhak, Arunee Paeyo, Thomas Crellen, Jiraporn Sithithaworn, Paiboon Sithithaworn, วารสาร: |
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 ที่มา:KASETSART UNIVERSITY FISHERIES RESEARCH BULLETINหัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : The Evaluation on the Use of Formalin to Neutralize Ammonia in Freshwater and Saltwater and its Effect on Hybrid Catfish and Giant Tiger Prawn {Penaeus monodon Fabricius)) ผู้เขียน:ดร.ยนต์ มุสิก, รองศาสตราจารย์ , Supavadee Koydol สื่อสิ่งพิมพ์:pdf AbstractLaboratory scale experiment was done to determine the dosage of formalin needed to neutralize ammonia both in freshwater and saltwater and to study the effect of this treatment method on hybrid catfish (Clarius macrocephalus X C. gariepinus) and giant tiger prawn (Penaeus monodon Fabricius). The concentrations of ammonia used in this experiment were between 0.3 and 2.0 mg-N/1. The relationships between the dosages of formalin (Y) and the concentrations of ammonia nitrogen (X) are "Y = 13.6 + 76.3X" for freshwater, "Y = 11.63 + 107.25X" for 20 ppt saltwater and "Y = 23.9 + 115.OX" for 30 ppt saltwater. The neutralization of ammonia by formalin at the concentrations of ammonia of 1.5 and 2.0 mg-N/1 resulted in 15.0 and 30.0% 96 hr-mortality of 2.05 g hybrid catfish and the neutralization of ammonia by formalin at the concentrations of ammonia of 1.0, 1.5 and 2.0 mg-N/1 resulted in 15.0, 33.3, and 40.0% 96 hr-mortality of 1.56 g of P. monodon. When chronic toxicity tests were conducted in the period of 12 weeks, declining in growth rates of tested species were observed when formalin was used to neutralize ammonia at the concentrations of ammonia >0.8 mg-N/1 for hybrid catfish and >0.5 mg-N/1 for P. monodon. Survival rates of test animals decreased when formalin was used to neutralize ammonia at the concentrations of ammonia >1.0 mg-N/1 for hybrid catfish experiment and >0.8 mg-N/1 for P. monodon experiment. |