Identification and antimicrobial susceptibility patterns of Pasteurella multocida isolated from chickens and Japanese quails in Brazil — ASN Events
  1. Schedule
  2. Session 4 Poster Session
  3. Identification and antimicrobial susceptibility patterns of Pasteurella multocida isolated from chickens and Japanese quails in Brazil

Identification and antimicrobial susceptibility patterns of Pasteurella multocida isolated from chickens and Japanese quails in Brazil (#65)

Everlon C Rigobelo 1 , Pat Blackall 2 , Renato P Maluta 3 , Fernando A de Avila 4
  1. Faculty of Animal Science, Dracena Campus Univi Estadual Paulista, Sao Paulo, Brazil
  2. Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
  3. Microbiology Faculty, Jaboticabal Campus Univi Estadual Paulista, Sao Paulo, Brazil
  4. Department of Veterinary Pathology, Jaboticabal Campus Univi Estadual Paulista, Sao Paulo, Brazil

A study was performed to verify the presence of Pasteurella multocida in eight different poultry groups of 90 birds each.  Groups I to IV were chickens with I being >6 weeks of age with a history of respiratory illness, II > 6 weeks of age and free of respiratory illness, III < 6 weeks of age with respiratory illness and IV being < 6 weeks of age and with no respiratory illness.  Groups V to VIII had the matching characteristics of Groups I to V but consisted of Japanese Quails. The P. multocida isolation rate from the groups was as follows; Group I 56/90 (62.3%) Group II 18/90 (20.0%), Group III 12/90 (13.3%), Group IV 3/90 (3.33%), Group V 8/90 (8.88%), Group VI 2/90 (2.22%) Group VII 2/90 (2.22%) and Group VIII 1/90 (1.11%). These isolation rates were not significantly different within the groups of a bird type but the overall chicken isolation rate was significantly higher than the quail isolation rate (p<0.01).  All isolates were examined for their sensitivity to four antimicrobial agents. The results showed only low levels of resistance to the agents tested. The highest level of resistance was detected to cephalothin (5.1% of isolates) followed by amikacin (3.4%).