The aim of this study was to investigate the importance of legislation regarding the process of testing the presence of Salmonella spp. in turkeys for slaughter and forensic investigation of the presence of antimicrobial drugs residues in turkey meat. The investigation was performed on a fattening farm, just before the delivery of turkeys for slaughter. Two pooled faecal samples were taken from turkeys and sent for analysis. Both samples were tested positive for Salmonella spp. Antibiogram was performed after that and the drug of choice for treatment was enrofloxacine. After turkeys were treated with antibiotics, again two pooled faecal samples were sent for analysis and now both were negative. Turkeys were sent for slaughter, but at the same time there were some suspicions that the owner did not comply with the time of the withdrawal period for the antibiotic used and a forensic investigation was performed in order to determine the presence of antimicrobial drug residues in slaughtered turkeys. Samples of liver, kidney and fat of turkeys were taken at the slaughter line and were sent for analysis for the presence of antimicrobial drugs residues. All of the samples were free of antimicrobial drug and the suspicions were rejected. Recommendations were made regarding the improvement of biosecurity and hygiene measures on farms and good animal husbandry practices in order to limit the use of antimicrobial agents. [Projekat Ministarstva nauke Republike Srbije, br. TR31034]

There are limited data available in the literature about the frequency and distribution of endocarditis in suckling and weaned piglets. The goal of this study was to investigate the frequency and distribution of lesions from cases of spontaneous valvular endocarditis in young piglets and to determine the bacterial agents involved in those lesions. Valvular endocarditis lesions in suckling piglets were detected in 21/454 cases (4.62%) and in 20/306 cases (6.53%) in weaned piglets. Streptococci were the dominant bacterial species isolated in 68% of the cases; S. suis was identified in 48.7% of the cases, S. pyogenes in 7.3% and S. spp., which could not be further identified, were cultured in 12.1% of the cases. E. rhusiopathiae was identified as the causal agent of endocarditis in four cases in the weaned piglets. In three cases, A. suis and S. aureus were isolated, and, in two cases, A. pleuropneumoniae was identified. Y. enterocolitica was isolated form one case of valvular endocarditis in a weaned pig. The finding of valvular endocarditis caused by Y. enterocolitica is an uncommon finding in pigs, and to the authors’ knowledge, there are no other reports of this agent being the cause of endocarditis in pigs. The involvement of Y. enterocolitica in endocarditis might have been assisted by the predisposing role of immunosuppressive viruses, such as porcine reproductive and respiratory syndrome.

REZIME