Carlos D. Gornatti Churria
Catedra de Patolog�a de Aves y Pil�feros y Laboratorio de Diagn�stico de Enfermedades de las Aves y los Pil�feros, Facultad de Ciencias Veterinarias, 60 y 118 s/n, CC 296 B1900AVW, Universidad Nacional de La Plata, La Plata, Buenos Aires Province, Argentina
Panayiotis Loukopoulos
Catedra de Patolog�a de Aves y Pil�feros y Laboratorio de Diagn�stico de Enfermedades de las Aves y los Pil�feros, Facultad de Ciencias Veterinarias, 60 y 118 s/n, CC 296 B1900AVW, Universidad Nacional de La Plata, La Plata, Buenos Aires Province, Argentina
German B. Vigo
Veterinary Diagnostic Laboratory, Building 295, School of Animal and Veterinary Sciences, Charles Sturt University, Nathan Cobb Drive, Wagga Wagga, New South Wales 2550 and Graham Centre for Agricultural Innovation, Charles Sturt University, Locked Bag 588, Wagga Wagga, New South Wales 2678, Australia
Pablo Sansalone
Phibro Vaccines, Phibro Animal Health Argentina SRL, Av. Alicia M. de Justo N� 1848 1� Piso Oficina 16, 1107 AFL, Ciudad Aut�noma de Buenos Aires, Buenos Aires Province, Argentina
Mariana A. Machuca
C�tedra de Patolog�a Especial y Laboratorio de Patolog�a Especial Veterinaria "Dr. B. Epstein", Facultad de Ciencias Veterinarias, 60 y 118 s/n, CC 296 B1900AVW, Universidad Nacional de La Plata, La Plata, Buenos Aires Province, Argentina
Victorio Nievas
Catedra de Microbiolog�a y Laboratorio de Diagnostico e Investigaciones Bacteriologicas, Facultad de Ciencias Veterinarias, 60 y 118 s/n, CC 296 B1900AVW, Universidad Nacional de La Plata, La Plata, Buenos Aires Province, Argentina
Miguel Piscopo
Catedra de Patolog�a de Aves y Pil�feros y Laboratorio de Diagn�stico de Enfermedades de las Aves y los Pil�feros, Facultad de Ciencias Veterinarias, 60 y 118 s/n, CC 296 B1900AVW, Universidad Nacional de La Plata, La Plata, Buenos Aires Province, Argentina
Miguel Herrero Loyola
Catedra de Patolog�a de Aves y Pil�feros y Laboratorio de Diagn�stico de Enfermedades de las Aves y los Pil�feros, Facultad de Ciencias Veterinarias, 60 y 118 s/n, CC 296 B1900AVW, Universidad Nacional de La Plata, La Plata, Buenos Aires Province, Argentina
Miguel A. Petruccelli
Catedra de Patolog�a de Aves y Pil�feros y Laboratorio de Diagn�stico de Enfermedades de las Aves y los Pil�feros, Facultad de Ciencias Veterinarias, 60 y 118 s/n, CC 296 B1900AVW, Universidad Nacional de La Plata, La Plata, Buenos Aires Province, Argentina
ABSTRACT
Ornithobacterium rhinotracheale is a bacterial pathogen of the poultry industry causing severe economic losses worldwide. Fifteen β-hemolytic and 23 non-hemolytic O. rhinotracheale isolates from commercial broiler and broiler breeder chicken flocks were obtained and their sensitivity to ampicillin, trimethoprim-sulfamethoxazole, gentamicin, enrofloxacin, erythromycin, florfenicol, doxycycline and fosfomycin tested by a disk diffusion method. All isolates were non-susceptible to gentamicin. Most were non-susceptible to enrofloxacin, erythromycin, trimethoprim-sulfamethoxazole, doxycycline and fosfomycin, while most were susceptible to ampicillin and florfenicol. Susceptibility to ampicillin and florfenicol was significantly higher compared to all other antibiotics tested. Overall, 34 out of 38 (89.5%) isolates were found to be multiresistant. The presence of these multiresistant O. rhinotracheale isolates is suggestive of antibiotic over and misusing in the local poultry industry. To the authors knowledge, this is the first work in South America reporting in vitro antibiotic susceptibility patterns of Argentine β-hemolytic and non-hemolytic O. rhinotracheale isolates.
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How to cite this article
Carlos D. Gornatti Churria, Panayiotis Loukopoulos, German B. Vigo, Pablo Sansalone, Mariana A. Machuca, Victorio Nievas, Miguel Piscopo, Miguel Herrero Loyola and Miguel A. Petruccelli, 2016. In vitro Antibiotic Susceptibility Patterns of Ornithobacterium rhinotracheale from Commercial Chickens in Argentina#. International Journal of Poultry Science, 15: 293-296.
DOI: 10.3923/ijps.2016.293.296
URL: https://scialert.net/abstract/?doi=ijps.2016.293.296
DOI: 10.3923/ijps.2016.293.296
URL: https://scialert.net/abstract/?doi=ijps.2016.293.296
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