Prevalence and characterisation of Salmonella in slaughtered cattle and beef in Poland

Abstract

A total of 1229 samples, including 406 bovine hides and 406 corresponding carcasses at the slaughter level, as well as 417 beef meat from local supermarkets, were tested for the presence of Salmonella sp. Eighteen (1.5%) samples were positive for the target microorganism, and the highest prevalence (2.2%) was found in meat, followed by carcasses (1.2%) and hides (1.0%). Among the isolated strains, Salmonella enterica serotypes Enteritidis (six isolates) and Schleissheim (six strains), followed by Dublin (four contaminated samples) were the most predominant. The antimicrobial resistance analysis against nine antimicrobials with the MIC technique revealed that most isolates were sensitive to all antibacterial agents. However, one S. Typhimurium of carcass origin was multidrug resistant, and displayed the resistance to four antimicrobials, i.e. ampicillin, streptomycin, tetracycline, and sulphametoxazole. Furthermore, one S. Enteritidis (from carcasses), two S. Dublin (of beef origin), and one S. London (from meat) strains were resistant to sulphametoxazole. The restriction enzyme analysis with XbaI resulted in eight different PFGE types. The obtained results suggest that cattle may be an underestimated source of pathogenic Salmonella for consumers.

In vitro virulence characteristics of rare serovars of Salmonella enterica isolated from sand lizards (Lacerta agilis L.)

“…S. Abony was detected with 6.2% frequency in Mediterranean turtle Testudo graeca faeces (Briones et al 2004 ) and it was occasionally associated with human salmonellosis (Hall and Rowe 1992 ; Woodward et al 1997 ). S. Schleissheim was identified in cattle (Wieczorek and Osek 2013 ) and mistle thrush Turdus viscivorus (Hernandez et al 2003 ). Human salmonellosis caused by this serovar has been previously reported in Turkey (Aksoycan et al 1983 ) and Poland (PZH and GIS 2016 ).…”

Serotypes of Salmonella isolated from feces of cattle, buffalo,and camel and sensitivities to antibiotics in Turkey

“…Wieczorek and Osek (24) stated that some of the S. Dublin, S. Enteritidis, and S. London strains were resistant to sulfamethizole. S. Typhimurium is resistant to multiple antibiotics (ampicillin, streptomycin, tetracycline, and sulfamethizole) (24). Rodriquez-Rivera et al (3) reported that 90 Salmonella strains (23.6%) out of 381 from subclinically infected dairy cattle and environmental samples were resistant to antibiotics varying from 1 and 11.…”

“…Various studies were carried out to isolate and serotype Salmonella from dairy cattle and calves (4,7,14,18,21,22,24). Several researchers (4,7,14,18,21,22,24) Fecal Salmonella studies in Turkey are usually based on slaughterhouse samples or case-based notices. Gökçen et al (26) isolated S. Typhimurium from the small bowel contents of only one cow out of 298 cattle.…”

“…The source of Salmonella-based diseases in people is often subclinically infected local dairy cattle (22,24). Cattle are the most important Salmonella reservoir agents and consumption of infected cattle meat is related to salmonellosis epidemics (25).…”

“…Veteriner Hekimleri Mikrobiyoloji Kongresi, 2014, Kemer, Antalya, Turkey (pp. [24][25]. The study was approved by the Ethics Committee of the Faculty of Veterinary Medicine at Selçuk University in Konya, Turkey.…”