title: SEROVARS AND ANTIMICROBIAL RESISTANCE OF Salmonella spp. ISOLATED FROM TURKEY AND BROILER CARCASSES IN SOUTHERN BRAZIL BETWEEN 2004 AND 2006.
abstract: Salmonella spp. causes diseases in fowls, when species-specific serovars (Salmonella Pullorum and S.Gallinarum) are present in flocks, and public health problems, when non-typhoid serovars are isolated, as well as possible bacterial resistance induced by the preventive and therapeutic use of antimicrobials in animal production. This study describes the serovars and bacterial resistance of 280 Salmonella spp. strains isolated from turkey and broiler carcasses in Southern Brazil between 2004 and 2006. Salmonella Enteritidis was the most prevalent serovar (55.7%), followed by Heidelberg (5.0%), Agona (4.3%), Bredeney (3.9%), Hadar (3.2%), and Typhimurium (2.9%). Tennessee and S. Enterica subspecies enterica(O: 4.5) were isolated only in turkeys, and Hadar (18.6%) was the most prevalent serovar in this species. Antimicrobial susceptibility tests were performed in 178 isolates (43 from turkeys and 135 from broilers). All isolates were sensitive to amoxicillin + clavulanic acid, polymyxin B, ciprofloxacin, and norfloxacin, and were resistant to bacitracin and penicillin. Broiler carcass isolates showed resistance to nalidixic acid (48.9%), nitrofurantoin (34.3%), neomycin (9.6%), tetracycline (5.2%), and kanamycin (8.9%); and turkey carcass isolates were resistant to nalidixic acid (62.8%), tetracycline (34.9%), and neomycin (30.2%), with a significant difference in turkeys when compared to broiler carcass isolates. These results indicate the need for judicious use of antimicrobials in livestock production, given that the serovars identified are potential causes of food poisoning.
authors.affiliation: Ministério da Agricultura, Pecuária e Abastecimento, Chapecó, Santa Catarina, Brazil.
authors.forename: Andre
authors.initials: A
authors.lastname: Palmeira
authors.affiliation: Faculdade de Medicina Veterinária, Universidade de Passo Fundo, Passo Fundo, RS, Brazil.
authors.forename: Luciana Ruschel dos
authors.initials: LR
authors.lastname: Santos
authors.affiliation: Universidade de São Paulo, São Paulo, São Paulo, Brazil.
authors.forename: Anderlise
authors.initials: A
authors.lastname: Borsoi
authors.affiliation: Universidade de Passo Fundo, Passo Fundo, Rio Grande do Sul, Brazil.
authors.forename: Laura Beatriz
authors.initials: LB
authors.lastname: Rodrigues
authors.affiliation: Universidade de Passo Fundo, Passo Fundo, Rio Grande do Sul, Brazil.
authors.forename: Max
authors.initials: M
authors.lastname: Calasans
authors.affiliation: Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
authors.forename: Vladimir Pinheiro do
authors.initials: VP
authors.lastname: Nascimento
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001938:Brazil; D002645:Chickens; D004269:DNA, Bacterial / Q000032:analysis; D008826:Microbial Sensitivity Tests; D011201:Poultry Diseases / Q000382:microbiology; D012475:Salmonella / Q000145:classification / Q000187:drug effects* / Q000302:isolation & purification; D012481:Salmonella Infections, Animal / Q000382:microbiology; D014422:Turkeys
chemical_list: D000900:Anti-Bacterial Agents; D004269:DNA, Bacterial