International Journal of Aquaculture, 2026, Vol.16, No.3, 184-195 http://www.aquapublisher.com/index.php/ija 190 Table 5 Morphological and biochemical characteristics of isolates of gill, liver and intestine Weeks Isolate code Cell shape Gram reaction Catalase TSI reaction Urease Motility test H2S test Citrate reaction Methyl red Hemolysis Glucose Mannitol Oxidase reaction Possible organisms 0 FGctr SR - + - - + - + - Β + + + presumptive Plesiomonas shigelloides FGTii SR - + - - + - + - Β - + + presumptive Plesiomonas shigelloides FITv SR - + - - + - + - Β - + + presumptive Plesiomonas shigelloides FITiv SR - + - - + - + - Β + + + presumptive Plesiomonas shigelloides FLTiii SR - - - - - - - - Β + + + presumptive Plesiomonas shigelloides 4 GGTii SR - + - - + - + - Β - + + presumptive Plesiomonas shigelloides GGTiii SR - + - - + - + - Β - + + presumptive Plesiomonas shigelloides GGTiv SR - + - - + - + - Β + + + presumptive Plesiomonas shigelloides GGTv SR - + - - + - + - Β - + + presumptive Plesiomonas shigelloides GIctr SR - - - - - - - - Β + + + presumptive Plesiomonas shigelloides GITiv SR - + - - + - + - Β - + + presumptive Plesiomonas shigelloides GITv SR - - - - - - - - Β + + + presumptive Plesiomonas shigelloides GLctr SR - - - - - - - - Β + + + presumptive Plesiomonas shigelloides GLTii SR - + - - + - + - Β + + + presumptive Plesiomonas shigelloides GLTv SR - + - - + - + - Β - + + presumptive Plesiomonas shigelloides 8 HGTii SR - - - - - - - - Β + + + presumptive Plesiomonas shigelloides HGTv SR - - - - - - - - Β + + + presumptive Plesiomonas shigelloides HGTvi SR - - - - - - - - Β + + + presumptive Plesiomonas shigelloides HITiii SR - + - - + - + - Β - + + presumptive Plesiomonas shigelloides HLTii SR - + - - + - + - Β - + + presumptive Plesiomonas shigelloides HITiv SR - + - - + - + - Β + + + presumptive Plesiomonas shigelloides HLctr SR - + - - + - + - Β + + + presumptive Plesiomonas shigelloides HLctr SR - - - - - - - - Β + + + presumptive Plesiomonas shigelloides HLTii SR - + - - + - + - Β - + + presumptive Plesiomonas shigelloides HLTvi SR - + - - + - + - Β - + + presumptive Plesiomonas shigelloides FG, fish gills at 0 weeks; FI, fish intestine at 0 weeks; FL; fish liver at 0 weeks; GG, fish gill at 4 weeks; GI, fish intestine at 4 weeks, GL, fish liver at 4 weeks, HG, fish gill at 8 weeks, HI, fish intestine at 8 weeks; HL, fish liver at 8 weeks; Ctr, experimental pond 1; Tii, experimental pond 2; Tiii, experimental pond 3; Tiv, experimental pond 4; Tv, experimental pond 5; Tvi, experimental pond 6; SR, Short rod; +, Positive; β, Beta; -, Negative
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