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1

Występowanie pałeczek Salmonella w mięsie kurcząt brojlerów

100%
Radkowski M., Zdrodowska B.
Medycyna Weterynaryjna
|
2016
|
tom 72
|
nr 08
The aim of this study was to identify the serological types of Salmonella most frequently detected in broiler chicken meat from 22 retail stores in Warmian-Masurian Voivodeship. For the purposes of the study, 200 samples (wings, legs) were taken randomly from meat packed on trays and stored in chilling cabinets in retail stores. Salmonella in chicken meat was detected by a method recommended by the Veterinary Committee, and published in the Polish Standards (PN-EN ISO 6579:2003). Meat was contaminated with Salmonella in 9 (40.9%) out of 22 retail stores where samples were taken. Salmonella was present in 13 (6.5%) out of 200 samples tested. The following serological types were found: S. Enteritidis (76.92%), S. Infantis (15.38%), S. Virchow (7.69%). The serotypes detected in broiler chicken meat were those that occur most frequently in human food poisoning outbreaks in Poland. It is important to monitor the presence of Salmonella in chicken carcasses in retail stores to understand the actual hazard level and to reduce the risk of salmonellosis in humans. In Poland, as well as in other countries, there are no effective methods for the decontamination of chicken carcasses contaminated with Salmonella. A comparison of our results with those from previous studies on the presence of Salmonella in retail stores shows that positive results can be expected from the improvement of hygiene standards in hatcheries, poultry processing plants, and retail stores.
2

Wpływ kwasu mlekowego na przeżywalność pałeczek Salmonellana powierzchni tuszki kurcząt

81%
Radkowski M., Zdrodowska B., Gomolka-Pawlicka M.
Medycyna Weterynaryjna
|
2018
|
tom 74
|
nr 02
The aim of this study was to determine the influence of different lactic acid concentrations on Salmonella bacilli in microbiological media and on the surfaces of chicken carcasses. For the contamination of samples the following strains were used: Salmonella Enteritidis, Salmonella Typhimurium, Salmonella Hadar, Salmonella Infantis and Salmonella Virchow. Each strain from each dilution was placed on nutrient agar without the addition of chemical substances (the control), and on nutrient agar with various amounts of substances were added 0.02%, 0.05%, 0.1%, 0.25%, 0.5%, 1%, 2% solutions of lactic acid. A concentration of up to 0.02% of lactic acid did not have a significant effect on the quantitative growth of Salmonella spp. Starting from the concentration of 0.1%, lactic acid completely inhibits the growth of all the studied strains of Salmonella. 150 samples from broiler chicken breasts were immersed for 2 minutes in 80 ml of Salmonella suspension containing 107 CFU. The samples were then transferred to sterile beakers with 250 ml of 2% and 5% solutions of lactic acid for a period of 5 minutes. Compared to the control, at a lactic acid concentration of 2% the number of Salmonella reductions ranged from 0.18 to 1.21 log. At the lactic acid concentration of 5%, the number of Salmonella, compared to the control, reductions ranged from 2.69 log to 3.67 log. From the conducted tests it can be concluded that it is possible to reduce the number of Salmonella bacilli on the surfasses of chicken carcasses through lactic acid concentrations of at least 2%.
3
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Neoplastic lesions in slaughter animals in Warminsko-Mazurskie voivodship (Poland) area during the years 2001-2007

81%
Radkowski M., Siemionek J., Zdrodowska B.
Polish Journal of Veterinary Sciences
|
2010
|
tom 13
|
nr 4
During the period of 7 years, 2001-2007, 110,273 heads of cattle and 3,055,654 heads of pigs were examined by veterinarians of the Polish Veterinary Inspection in Warmińsko-Mazurskie voivodship. As a result of pre- and post-slaughter examination, 311 heads of cattle and 23 heads of pigs representing 0.279% and 0.00075% of the population respectively were considered unsuitable due to neoplastic lesions. The most frequently found lesions in cattle were fibroneuromas, neuromas and liposarcomas while in case of pigs those were various types of sarcomas, fibromas, cancers, nephromas and melanomas.
4
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Post-harvest Salmonella spp. prevalence in turkey carcasses in processing plant in the northeast part of Poland

81%
Zdrodowska B., Liedtke K., Radkowski M.
Polish Journal of Veterinary Sciences
|
2014
|
tom 17
|
nr 1
Turkeys carcasses at selected point after slaughter on dressing line in poultry were sampled and analyzed for Salmonella. These slaughter turkeys came from the northeast part of Poland. The examinations were carried out in each month of 2009. Three hundred turkeys were selected at random from a commercial slaughter line, immediately after completing the cooling process. The percentage of these 300 turkeys from which Salmonella spp. were isolated was relatively high (8.3%; Salmonella positive results were observed in 25 cases). The lowest Salmonella spp. rate (1.3 %) for slaughter birds was found in the fourth quarter, and the highest contamination rate at 18.6% was found, in the third quarter. The serological types of Salmonella spp. isolated from the whole turkey carcasses were S. Saintpaul, S. Senftenberg, S. Anatum, S. Heidelberg, S. Hadar, S. Typhimurium and S. Infantis.
5

Ocena występowania plazmidowych genów zjadliwości spv oraz antybiotykooporność szczepów Salmonella izolowanych z mleka

61%
Wiszniewska-Laszczych A., Zdrodowska B., Wysok B., Szteyn J., Liedtke K., Gomolka-Pawlicka M., Wojtacka J.
Medycyna Weterynaryjna
|
2018
|
tom 74
|
nr 01
The aim of the study was to measure the frequency of occurrence of Salmonella spp. in raw milk, to identify their serotype, as well as to determine their antibiotic resistance and the presence of Salmonella plasmid virulence (spv) genes. Out of 300 bulk tank milk samples, 5.3% were contaminated with Salmonella spp. All strains isolated belonged to the serovar S enteritidis, as confirmed by serotyping and molecular methods. The presence of spv genes was determined by PCR. Spv genes were present, in different patterns, in all strains tested. SpvA gene was present in all isolates (100%), spvB in 56.25%, spvC in 62.5%, spvD in 75%, and spvR in 56.25%. Antibiotic resistance was evaluated according to the NCCLS recommendations. All isolates were sensitive to ciprofloxacin (CIP), gentamicin (GE), and chloramphenicol (CH). Thirteen strains were resistant to ampicillin (AMP), 8 to erythromycin (E), 1 to doxycycline (DO), and 1 to tetracycline (TE). Different frequency of occurrence of the spv genes in Salmonella strains isolated from raw milk demonstrates their high adaptability. As many as 87.5% of isolates showed resistance to at least one of the antibiotics tested.
6

Elektrody jonoselektywne w analizie specjacyjnej wapnia i magnezu w mleku

61%
Zdrodowska B., Czerwinska K., Raczynska A., Bieganowski P., Wagner-Czauderna E., Lewenstam A., Maj-Zurawska M.
Journal of Elementology
|
2008
|
tom 13
|
nr 3 Suppl.
67-68
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