P. Szeleszczuk

ORCID: 0000-0003-1830-4232
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Research Areas
  • Microbial infections and disease research
  • Animal Virus Infections Studies
  • Agriculture, Plant Science, Crop Management
  • Animal Nutrition and Physiology
  • Bird parasitology and diseases
  • Nutrition and Health Studies
  • Mycobacterium research and diagnosis
  • Antimicrobial Resistance in Staphylococcus
  • Animal Disease Management and Epidemiology
  • Viral gastroenteritis research and epidemiology
  • Coccidia and coccidiosis research
  • Viral Infections and Vectors
  • Herpesvirus Infections and Treatments
  • Vector-Borne Animal Diseases
  • Tuberculosis Research and Epidemiology
  • Streptococcal Infections and Treatments
  • Bacterial Identification and Susceptibility Testing
  • Agricultural economics and policies
  • Virology and Viral Diseases
  • Garlic and Onion Studies
  • Veterinary medicine and infectious diseases
  • Insect and Pesticide Research
  • Livestock and Poultry Management
  • Probiotics and Fermented Foods
  • Meat and Animal Product Quality

Warsaw University of Life Sciences
2015-2024

Abstract The aim of the research was to determine effect newly elaborated synbiotic preparations on count dominant intestinal microorganisms, profile fatty acids (short chain – SCFA and branched BCFA), lactic acid produced performance chickens. studies determined composition microbiota with use culture method. also using high-performance liquid chromatography method (HPLC). Moreover, chickens such as daily cumulative mortality rate, feed conversion ratio (FCR) European Production Efficiency...

10.1038/s41598-020-61256-z article EN cc-by Scientific Reports 2020-03-09

Good biosecurity procedures are crucial for healthy animal production. The aim of this study was to quantify the level on conventional broiler farms in Europe, following a standardized procedure, thereby trying identify factors that amenable improvement. current used risk-based weighted scoring system (biocheck.ugent ®) assess 399 5 EU member states. consisted 2 main categories, namely external and internal biosecurity, which had 8 3 subcategories, respectively. Biosecurity quantified by...

10.3382/ps/pex296 article EN cc-by-nc-nd Poultry Science 2018-01-01

Abstract Background Conventional broilers are currently one of the most efficient protein converters. Although decades progress in genetic selection and feed formulation have lead to high standards broiler production, still a lot variability is found between farms successive flocks. The aim this study was investigate risk- and/or protective factors for poor health performance conventional broiler-farms Europe by developing eight multivariable linear mixed models. Three different models were...

10.1186/s12917-020-02484-3 article EN cc-by BMC Veterinary Research 2020-08-12

From the beginning of 21(st) century Enterococcus cecorum has emerged as a significant health problem for poultry raised under intensive production systems. To obtain new insights into this bacterial species, we investigated 82 clinical isolates originating from different flocks in Poland between 2011 and 2014.Phenotypically, cases showed ability to growth at low temperatures (4 °C, 10 °C), differences 45 °C (74.4 %). Survival high (60 70 °C) was observed 15, 30 min. More than half strains...

10.1186/s12917-016-0761-1 article EN cc-by BMC Veterinary Research 2016-06-27

The administration of probiotics and prebiotics (synbiotics) is a promising method for detoxification ochratoxin A (OTA) in animals. aim this study was to investigate the ability five probiotic strains lactic acid bacteria (LAB) one Saccharomyces cerevisiae yeast strain, from three different synbiotics poultry, detoxify OTA. In addition, we also investigated genotoxicity faecal water (FW) chickens after administering OTA and/or 42 days.All tested LAB had by significant (P < 0.05) reducing...

10.1002/jsfa.9664 article EN Journal of the Science of Food and Agriculture 2019-03-04

Enterococcus cecorum (EC) is known as a commensal in the intestines of mammals and birds. However, it has been described an emerging pathogen poultry industry worldwide. The aim this study was to analyze compare EC isolated from clinical material collected groups with different production purposes. genetic diversity among pathogenic relation each specific type examined. In total, 148 isolates independent infection outbreaks (2011-2016) were used: 76 broiler chickens (CB), 37 breeders (BB),...

10.1371/journal.pone.0185199 article EN cc-by PLoS ONE 2017-09-21

Abstract Introduction Although the presence of rotaviruses in pigeon samples has been reported since 1980s, its importance as an aetiological agent “classical” young disease (YPD) was not proven until 2020, when Henle–Koch postulates were confirmed for pigeon-type rotavirus A (RVA) genotype G18P(17). Material and Methods From 2011 to archived liver from 117 pigeons submitted by 74 individual lofts tested RVA using a VP6-specific RT-qPCR test. For four positive racing pigeons, more detailed...

10.2478/jvetres-2024-0006 article EN cc-by-nc-nd Journal of Veterinary Research 2024-02-19

The knowledge of the correct morphological and biochemical parameters in mute swans is an important indicator their health status, body condition, adaptation to habitat useful diagnostic tools veterinary practice ecological research. aim study was obtain hematological relation age, sex serum biochemistry values wild-living swans. We found significant differences erythrocyte count, hematocrit, hemoglobin concentration sedimentation rate age There were no between males females. leukogram H/L...

10.1007/s11259-014-9589-y article EN cc-by Veterinary Research Communications 2014-01-23

Histomonosis (histomoniasis, blackhead), beside coccidiosis, belongs to the most important parasitic protozoan diseases in poultry. So far Histomonas meleagridis infections with varied mortality rates have been mainly diagnosed young turkeys. Recently an increasing number of cases reported chicken flocks Europe resulting economic losses. It is thought that this situation predominantly caused by a complete withdrawal effective antihistomonals EU. Authors listed selected outbreaks histomonosis...

10.1007/s11259-015-9637-2 article EN cc-by Veterinary Research Communications 2015-05-14

Compliance with required on-farm biosecurity practices reduces the risk of contamination and spread zoonotic economically important diseases. With repeating avian influenza epidemics in poultry industry, need to monitor improve overall level is increasing. In practice, compliance assessed by various actors (e.g., academic, private public institutions), results such assessments may be recorded gathered databases which are seldom shared or thoroughly analyzed. This study aimed provide an...

10.3389/fvets.2023.1231377 article EN cc-by Frontiers in Veterinary Science 2023-08-15

In this study, the influence of new multi-strain synbiotics on chicken growth performance, hematology, serum biochemistry and immunity was explored. Each synbiotic preparation (A, B C) comprised three, four or five strains Lactobacillus sp., respectively, as well S. cerevisiae inulin. All used in originated from wild-type animal farms Poland. Six groups chickens, ROSS 308 line, were fed with three different at a dose 0.5 g/1 kg feed. Body weight, biochemical hematological parameters animals...

10.3390/ani10091555 article EN cc-by Animals 2020-09-02

This study was aimed to investigate the intestinal microbiota in racing pigeons with regard Enterococcus species distribution, virulence factors and antibiotic susceptibility. Three methods (API, Multiplex sodA-PCR, 16S rRNA sequencing) were compared for identification. Cloacal samples from 179 apparently healthy of 13 different flocks tested.Multiplex sodA-PCR gene sequencing showed almost perfect agreement Isolates identified as columbae (34.5%), hirae (20.7%), faecalis (11.7%), faecium...

10.1186/s12917-019-2200-6 article EN cc-by BMC Veterinary Research 2020-01-08

Bacteria of the genus Enterococcus are mainly commensals building natural microflora in digestive tract birds and mammals. They belong to potentially pathogenic microorganisms. Among poultry, infections caused by enterococci were reported chickens, turkeys, ducks ostriches. The aim this study was evaluate occurrence poultry Poland, including identification enterococcus species composition determination age birds. analysis based on data obtained from 2014 – 2015 Division Avian Diseases at...

10.21521/mw.5680 article EN Medycyna Weterynaryjna 2017-01-01

Abstract Enterococcus cecorum is a well-known component of the normal poultry intestinal microbiota and an important bacterial pathogen. Infections caused by E. have negative effects on production worldwide. In this study we used SPF-chicken embryo lethality assay (ELA) to assess pathogenic potential . A total 23 isolates were used: 19 clinical from field outbreaks in different groups (CB – broiler chickens, BB breeders, CL layers, T– turkeys, W waterfowl) 4 commensal isolates. The...

10.1038/s41598-022-14900-9 article EN cc-by Scientific Reports 2022-06-23

Enterococcus hirae is considered a part of the normal intestinal biota several domestic animals, including poultry. However, this species also associated with infective endocarditis in chickens, disease that leads to unexpected deaths and serious economical losses. identified predominantly use conventional bacteriological methods, biochemical tests PCR. Rapid, sensitive specific methods for detecting E. clinical samples are required poultry production. The aim study was Loop-Mediated...

10.1186/s12866-019-1420-z article EN cc-by BMC Microbiology 2019-02-21

ABSTRACT The aim of the study was to assess safety three newly developed synbiotic preparations in feeding chickens. carried out on 84 Specific Pathogen Free chickens, between 1st and 21st day their life. Animals were divided into four groups fed ad libitum: with an addition synbiotics A, B or C a control group (feed no additives). Synbiotics contained Lactobacillus, Saccharomyces cerevisiae inulin (prebiotic). Rearing parameters determined taking account undesirable clinical sectional...

10.1093/femsle/fnz116 article EN FEMS Microbiology Letters 2019-06-01

1. Opinion of the Scientific Panel on contaminants in food chain [CONTAM] related to ochratoxin A (OTA) as undesirable substance animal feed EFSA Journal CrossRef

10.22358/jafs/69844/1994 article EN cc-by Journal of Animal and Feed Sciences 1994-12-19

The aim of the present study was to determine susceptibility budgerigars (Melopsittacus undulatus) infections with different Mycobacterium species. For inoculations following species were used: avium subsp. avium, bovis bovis, tuberculosis tuberculosis, intracellulare and M. fortuitum fortuitum. bacterial suspension administrated intramuscularly all birds monitored for 70 days starting from day inoculation. During experiment clinical examination, X-ray scans, plate agglutination tests,...

10.1080/03079450701802255 article EN Avian Pathology 2008-01-16

Abstract Mycobacterioses are a constant problem in backyard poultry, as well pet birds. To date, no evidence of direct transmission atypical bacilli between humans has been demonstrated, but it cannot be ruled out that sick animals can source infection for people their environment. The aim the study was to identify mycobacteria isolated from birds with diagnosed mycobacteriosis and determine susceptibility mycobacterial isolates these antituberculous drugs most commonly used treatment...

10.21307/pjm-2018-057 article EN cc-by-nc-nd Polish Journal of Microbiology 2018-01-01
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