Antimicrobial resistance of Aeromonas spp. isolatedrnfrom the carp farm following Streptomycin treatment

Abstract

Seven fresh bacterial isolates were isolated from disease affected fish species such as Labeo rohita,rnCyprinus carpio, H. molitrix, and Puntius sarana from different carp farms and market sources. Bacterialrnisolates were collected from different tissues or organ such as skin, gill, spot lesions on the skin,rnabdomen, kidney etc. Several tests were conducted for characterization of bacteria. Susceptibility ofrnAeromonas spp. bacteria to Streptomycin (10 μg/200 mL) antibiotic were 150 colony and in control 320rncolony in R-1. Where in R-2, 142 colony and in control 296 colony and finally in R-3, 145 colony and inrncontrol 311 colony were found in T-4. Where resistance of Aeromonas spp. bacteria to Streptomycin (30rnμg/200 mL) antibiotic were 1 colony and in control 318 colony in R-1. Where in R-2, 0 colony and inrncontrol 309 colony and finally in R-3 also 0 colony and in control 314 colony were found in T-4. All therntreatments ware performed through serial dilution method at 310×10–4 bacterial dilution factor.