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1

Dynamika rozprzestrzeniania sie afrykańskiego pomoru świń w Polsce

100%
Smietanka K., Bocian L., Pejsak Z.
Lecznica Dużych Zwierząt. Ogólnopolski Kwartalnik dla Lekarzy Weterynarii
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2015
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tom 10
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nr 2
2

Mikrobiologiczna ocena ryzyka - ocena narażenia i charakterystyka ryzyka

100%
Zietek-Barszcz A., Bocian L., Stolarek A., Miechowicz B.
Medycyna Weterynaryjna
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2012
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tom 68
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nr 07
The final result of a comprehensive microbiological risk assessment should be the estimation of a probability and severity of adverse health effects that could occur in the population. Risk assessment requires the use of high quality data so that the assessment results could enable risk managers to take appropriate action at the appropriate moment. In the previous publication the first two stages of microbiological risk assessment were shown, i.e. hazard identification and hazard characterization. The purpose of this publication is to present the other two steps of risk assessment, i.e. exposure assessment and risk characterization. Exposure assessment describes the likelihood of exposure to biological, chemical and physical hazards with the potential to cause adverse health effects in humans and animals. In the case of microbiological risk assessment, exposure assessment should establish the concentration of a pathogenic agent in food for specific groups of consumers, as well as all possible pathways of exposure. On the other hand, risk characterization should establish qualitatively and/or quantitatively, with associated uncertainties, the likelihood and severity of known or potential adverse effects in a given population. Risk characterization is based on the integration of data collected during the previous stages of risk assessment in order to provide a comprehensive risk estimate.
3

Microbiological quality of feed materials used between 2009 and 2012 in Poland

88%
Kukier E., Goldsztejn M., Grenda T., Kwiatek K., Bocian L.
Bulletin of the Veterinary Institute in Puławy
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2013
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tom 57
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nr 4
The study was conducted at all regional veterinary diagnostic laboratories. Feed materials were examined for Salmonella prevalence and contamination by Enterobacteriaceae, aerobic mesophilic bacteria, total plate count, fungi, Clostridium sp., and Bacillus cereus. Assays were done following international and Polish standards used in food and feed microbiology. Salmonella sp. were most often detected in oil seeds. In most of the examined feed ingredients, the number of Enterobacteriaceae did not exceed 10 cfu/g. The contamination by aerobic bacteria ranged most often from 10¹ to 10⁷ cfu/g, and the highest mycological contamination was noted in cereal grains (10⁸ cfu/g). The results showed that microbial contamination of feed materials in regard to Enterobacteriaceae, fungi, and total plate counts declined over the past years.
4
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Ocena ryzyka przeniesienia afrykańskiego pomoru świń z Obwodu Kaliningradzkiego do Polski

88%
Markowska-Daniel I., Zietek-Barszcz A., Bocian L., Kukier M., Pejsak Z.
Życie Weterynaryjne
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2011
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tom 86
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nr 06
5

Mikrobiologiczna ocena ryzyka - identyfikacja oraz charakterystyka zagrożenia

88%
Zietek-Barszcz A., Miechowicz B., Stolarek A., Bocian L., Smietanka K.
Medycyna Weterynaryjna
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2012
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tom 68
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nr 05
Risk assessment is a complex process that requires adequate knowledge of various fields. It consists of four steps: hazard identification, hazard characterization, exposure assessment and risk characterization. It can be conducted in a qualitative, semi-quantitative or a quantitative manner, and its selection depends on the quantity and quality of collected data. The aim of the paper has been to introduce to the historical background, terminology and the first two steps of risk assessment in improving animal health and food safety: hazard identification and hazard characterization. Hazard identification is usually defined as “the identification of biological, chemical, and physical agents capable of causing adverse health effects and which may be present in a particular food or group of foods.” The data concerning a particular hazard can be derived from scientific literature, databases, governmental agencies, international organizations, expert opinions, clinical tests, animal experiments, epidemiological observations, examinations of properties and interactions between microorganisms. Hazard characterization is the qualitative and/or quantitative assessment of the nature of the adverse health effects associated with the hazard. There are several factors considered in hazard characterization, related to both the microorganism and the human host. The most desirable part of this process is establishing a dose-response relationship, describing the relationship between the amount or level of exposure to a substance and the occurrence and intensity of an adverse effect.
6
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Osiemnaście miesięcy afrykańskiego pomoru świń w Polsce

76%
Pejsak Z., Niemczuk K., Kowalczyk A., Wozniakowski G., Kozak E., Bocian L., Smietanka K.
Życie Weterynaryjne
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2015
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tom 90
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nr 10
7

Nadzór bierny ASF udzików jako skuteczne narzędzie kontroli, zwalczania i przeciwdziałania występowaniu ASF - nowe podejście

76%
Welz M., Popczyk B., Niemczuk K., Bocian L., Jazdzewski K., Konopka B.
Medycyna Weterynaryjna
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2021
|
tom 77
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nr 05
8
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Four years of African swine fever in Poland. New insights into epidemiology and prognosis of future disease spread

64%
Pejsak Z., Niemczuk K., Frant M., Mazur M., Pomorska-Mol M., Zietek-Barszcz A., Bocian L., Lyjak M., Borowska D., Wozniakowski G.
Polish Journal of Veterinary Sciences
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2018
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tom 21
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nr 4
9

Epidemiological and histopathological analysis of 40 apocrine sweat gland carcinomas in dogs: a retrospective study

64%
Kycko A., Jasik A., Bocian L., Otrocka-Domagala I., Mikiewicz M., Smiech A., Lopuszynski W., Dolka I., Nowak M., Madej J. A.
Journal of Veterinary Research
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2016
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tom 60
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nr 3
10
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Analiza przebiegu epizootii afrykańskiego pomoru świń w zachodniej Polsce

64%
Konopka B., Welz M., Bocian L., Niemczuk K., Walczak M., Frant M., Mazur N., Wozniakowski G.
Życie Weterynaryjne
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2020
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tom 95
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nr 08
11

Histopathology of internal organs of farm animals fed genetically modified corn and soybean meal

52%
Reichert M., Kozaczynski W., Karpinska T. A., Bocian L., Jasik A., Kycko A., Swiatkiewicz M., Swiatkiewicz S., Furgal-Dzierzuk I., Arczewska-Wlosek A., Strzetelski J., Kwiatek K.
Bulletin of the Veterinary Institute in Puławy
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2012
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tom 56
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nr 4
Histopathological examination of liver, kidney, spleen, pancreas, duodenum, jejunum, skeletal muscle, and bursa of Fabricius samples, collected from broiler chickens, laying hens, fattening pigs, and calves fed genetically modified corn MON 810 and soybean meal MON-40-3-2 (Roundup Ready, RR), was performed. The examination showed no significant differences between the control animals fed diets containing no genetically modified feeds and animals fed genetically modified feeds. In some cases, congestion of parenchyma and focal lymphoid cell infiltrations were observed in all dietary groups, including controls, and therefore, it was assumed that the lesions were not associated with the feeding transgenic feeds.
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