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The objective of this study was to determine the in vitro resistance rates to 8 antibiotics of Escherichia coli isolated from cows with cases of clinical mastitis in Burdur province of Turkey during the 2000 to 2005 period. Antimicrobial susceptibility testing was performed on a total of 101 E. coli isolates. Only 9 of the isolates were susceptible to all tested antibiotics, while the remaining 92 isolates were determined to be phenotypically resistant at least to one of the antibiotics. Among the 8 antimicrobial agents tested, resistance was most frequent for trimethoprim/sulphamethoxazole, neomycin, oxytetracycline and gentamicin. The resistance rates of the isolates to enrofloxacin, danofloxacin, amoxycillin/clavulanic acid, cefuroxime, gentamicin, oxytetracycline neomycin and trimethoprim/sulphamethoxazole were 10.9%, 11.9%, 25.7%, 26.7%, 33.7%, 51.5%, 55.4% and 64.4%, respectively. In conclusion, the differences observed in the efficacy of the antibiotics tested to E. coli isolates indicate the importance of antibiotic susceptibility tests and periodic surveillance of the antibiotic susceptibilities of pathogenic bacteria.
The aim of this study was to describe a case of hair lost and skin changes due to Scopulariopsis brevicaulis infection a dead goat and a sick kid, and to determine effective treatments. At the macroscopic examination, both goat hair loss and skin lesions of varying size were seen along the body of the animals. Microscopically, arthrospor was seen in the hair and skin samples. In parasitological examination, no parasites were observed in the skin and hair. Pure cultures of Scopulariopsis brevicaulis were isolated from skin and hair samples in Sabouraud dextrose agar with penicillin and streptomycin. The infection in the kid was successfully treated by itraconazole (100 mg/kg, daily, for 6 weeks) and D-biotin (twice 0.1 mg/kg i.m., at 1-week interval).
The aim of this study was to describe a case of skin lesions with haemorrhaging in a carp (Cyprinus carpio) hatchery farm and to determine effective antibiotic treatments. In the macroscopic examinations of nine carp with haemorrhagic skin lesions, brown or red spotted skin changes of a varying degree were found, along their bodies. No lesions were observed in the internal organs. Pure cultures of Aeromonas hydrophila were isolated from the skin, kidney, heart, and liver of the carp. All of the isolates were found to be susceptible to danofloxacin, enrofloxacin, gentamicin, ciprofloxacin, neomycin, and trimethoprim-sulphamethoxazole and resistant to ampicillin, amoxicillin, amoxicillin/clavulanic acid, oxytetracycline, and streptomycin. Treatment of A. hydrophila infection was carried out by applying trimethoprim-sulphamethoxazole for 3 d at 10 g/ton of pool water.
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