Przeglądaj Publikacje według autora "Tomczyk, Grzegorz"
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Antibiotic resistance of Gallibacterium anatis biovar haemolytica isolates from chickens
Kursa, Olimpia; Tomczyk, Grzegorz; Sieczkowska, Agata; Sawicka-Durkalec, Anna (National Veterinary Research Institute in Pulawy; Poland, 2024)Gallibacterium anatis is an opportunistic bacteria inducing a range of clinical signs in poultry. Gallibacterium anatis strains show multidrug resistance to antibacterial substances. The purpose of this study was to examine ... -
Evidence of Mycoplasma spp. transmission by migratory wild geese
Sawicka-Durkalec, Anna; Tomczyk, Grzegorz; Kursa, Olimpia; Stenzel, Tomasz; Gyuranecz, Miklós (2021)Mycoplasma infections have been found in different species of waterfowl worldwide. However, the question of how the pathogens have been transmitted and dispersed is still poorly understood. Samples collected from clinically ... -
Identification and detection of mutations potentially associated with decreased susceptibility to macrolides and lincomycin in Mycoplasma anserisalpingitidis isolates
Grozner, Denes; Beko, Katinka; Kovacs, Aron Botond; Mitter, Alexa; Hrivnak, Veronika; Sawicka, Anna; Tomczyk, Grzegorz; Banyai, Krisztian; Janosi, Szilard; Kreizinger, Zsuzsa; Gyuranecz, Miklos (2022)Mycoplasma anserisalpingitidis infection is associated with the inflammation of the genital tract and cloaca, embryo lethality and decreased egg production in geese, leading to serious economic losses. This bacterium has ... -
The Microbial Community of the Respiratory Tract of Commercial Chickens and Turkeys
Kursa, Olimpia; Tomczyk, Grzegorz; Adamska, Karolina; Chrzanowska, Justyna; Sawicka-Durkalec, Anna (MDPI, 2022)Respiratory tract health critically affects the performance of commercial poultry. This report presents data on the microbial community in these organs from a comprehensive study of laying chickens and turkey breeders. The ... -
Molecular characteristics of fowl adenovirus strains detected in broiler chickens on diets without immunostimulant supplements
Niczyporuk, Jowita Samanta; Kozdruń, Wojciech; Tomczyk, Grzegorz; Piekarska, Karolina; Barabasz, Marcin; Michalski, Marcin (National Veterinary Research Institute in Pulawy; Poland, 2024)IntroductionOutbreaks of fowl adenovirus (FAdV) infection in chicken flocks in Poland threaten birds’ health and lives and are rising in frequency. The risk of these infections in immunocompromised poultry flocks with ... -
Molecular detection and phylogenetic analysis of Riemerella anatipestifer in poultry and wild geese in Poland
Sawicka-Durkalec, Anna; Tomczyk, Grzegorz; Gerilovych, Iryna; Kursa, Olimpia (MDPI, 2023)Riemerella anatipestifer (RA) is one of the most relevant bacterial pathogens of commercial waterfowl from clinical and economic points of view. Our study aimed to evaluate the prevalence of RA infection in different types ... -
Mycoplasma gallisepticum and Mycoplasma synoviae in Turkeys in Poland
Kursa, Olimpia; Tomczyk, Grzegorz; Sieczkowska, Agata; Kostka, Sylwia; Sawicka-Durkalec, Anna (MDPI, 2024)The pathogenic mycoplasmas are among the bacteria causing significant losses in the poultry industry worldwide. Mycoplasma gallisepticum (MG) and M. synoviae (MS) are economically important pathogens causing chronic ... -
Occurrence of Mycoplasma spp. in wild birds: phylogenetic analysis and potential factors affecting distribution
Sawicka-Durkalec, Anna; Kursa, Olimpia; Bednarz, Łukasz; Tomczyk, Grzegorz (2021)Different Mycoplasma species have been reported in avian hosts. However, the majority of studies focus on one particular species of Mycoplasma or one host. In our research, we screened a total of 1141 wild birds representing ... -
Occurrence of Ornithobacterium rhinotracheale in Polish turkey flocks
Kursa, Olimpia; Tomczyk, Grzegorz; Sawicka-Durkalec, Anna (National Veterinary Research Institute in Pulawy; Poland, 2022)Introduction: Ornithobacterium rhinotracheale (ORT) causes significant economic losses to the poultry industry around the world. The bacterium often affects poultry as part of multiple infections causing very ... -
Outbreak of highly pathogenic avian influenza A(H5N1) clade 2.3.4.4b virus in cats, Poland, June to July 2023
Domańska-Blicharz, Katarzyna; Świętoń, Edyta; Świątalska, Agnieszka; Monne, Isabela; Fusaro, Alice; Tarasiuk, Karolina; Wyrostek, Krzysztof; Styś-Fijoł, Natalia; Giza, Aleksandra; Pietruk, Marta; Zechchin, Bianca; Pastori, Ambra; Adaszek, Łukasz; Pomorska-Mól, Małgorzata; Tomczyk, Grzegorz; Terregino, Calogero; Winiarczyk, Stanisław (European Centre for Disease Prevention and Control (ECDC), 2023)Background: Over a 3-week period in late June/early July 2023, Poland experienced an outbreak caused by highly pathogenic avian influenza (HPAI) A(H5N1)virus in cats. Aim: This study aimed to characterise the identified ... -
Prevalence, identification and antibiotic resistance of Gallibacterium anatis isolates from chickens in Poland
Kursa, Olimpia; Tomczyk, Grzegorz; Sieczkowska, Agata; Sawicka-Durkalec, Anna (MDPI, 2023)The Gram-negative bacterium Gallibacterium anatis is part of the normal avian respiratory,intestinal and reproductive tract microflora and can be transmitted horizontally and vertically. Withthe coexistence of other relevant ... -
Probiotic supplementation as an alternative to antibiotics in broiler chickens
Tomczyk, Grzegorz; Niczyporuk, Jowita Samanta; Kozdruń, Wojciech; Sawicka-Durkalec, Anna; Bocian, Łukasz; Barabasz, Marcin; Michalski, Marcin (National Veterinary Research Institute in Pulawy; Poland, 2024)Introduction: The broiler chicken digestive tract microbiome maintains the bird’s immunity. Its composition has been shown to be important not only for the immune system but also for the gastrointestinal function and ... -
Sytuacja epidemiologiczna zakażeń Ornithobacterium rhinotracheale u drobiu w świetle wyników badań własnych
Kursa, Olimpia; Tomczyk, Grzegorz; Sawicka-Durkalec, Anna (Przedsiębiorstwo Wielobranżowe BEGEPO Sp. z o.o., 2022)Choroby układu oddechowego są jedną z ważniejszych przyczyn powodujących wysokie straty ekonomiczne w produkcji drobiarskiej. W warunkach terenowych najczęściej obserwuje się infekcje o wielorakiej etiologii, z udziałem ... -
Trendy w stosowaniu leków przeciwbakteryjnych w leczeniu mykoplazmozy drobiu
Sawicka-Durkalec, Anna; Tomczyk, Grzegorz; Kursa, Olimpia (Przedsiębiorstwo Wielobranżowe BEGEPO Sp. z o.o., 2022)Mykoplazmoza drobiu to choroba wywoływana zakażeniem bakteriami z rodzaju Mycoplasma (M.) występująca u kilku gatunków ptaków hodowlanych. Do gatunków infekujących drób grzebiący zalicza się M. gallisepticum , M. synoviae, ...