خيارات البحث
النتائج 1 - 10 من 294
An evaluation of dogs’ exposure to benzophenones through hair sample analysis
2024
Gonkowski Sławomir | Martín Julia | Rychlik Andrzej | Aparicio Irene | Santos Juan Luis | Alonso Esteban | Makowska Krystyna
Benzophenones (BPs) are used in various branches of industry as ultraviolet radiation filters, but they pollute the natural environment, penetrate living organisms, and disrupt endocrine balance. Knowledge of the exposure of domestic animals to these substances is extremely scant. The aim of the study was to investigate long-term exposure of companion dogs to BPs and relate this to environmental factors.
اظهر المزيد [+] اقل [-]The diagnostic value of selected immune parameters in peripheral blood of dogs with malignant mammary tumours – a preliminary study
2024
Lisiecka Urszula | Brodzki Piotr | Śmiech Anna | Michalak Katarzyna | Winiarczyk Stanisław | Żylińska Beata | Adaszek Łukasz
The main adaptive immune cells are T and B lymphocytes and they play key roles in the induction of immune responses against canine mammary tumours. Investigating these cell subpopulations may lead to more precise diagnosis of these malignancies.
اظهر المزيد [+] اقل [-]Comparison of transfer of different sulphonamides from contaminated beeswax to honey
2024
Mitrowska Kamila | Antczak Maja
No maximum residue limits in honey have been legislated in the EU for antimicrobial substances such as sulphonamides, and they are not permitted, therefore, for treating honey bees unless in a cascade system. Since sulphonamides are used illegally in apiculture to treat foulbrood, their residues can be found in honey and other apiculture products, including beeswax. The study aimed to assess the contamination of honey from beeswax containing residues of 10 sulphonamides (sulphadimethoxine (SDM), sulphadoxine (SDX), sulphamonomethoxine (SMM), sulphamethoxazole (SMX), sulphameter (SMT), sulphamethazine (SMZ), sulphamerazine (SMR), sulphadiazine (SDA), sulphathiazole (STZ) and sulphacetamide (SCA)).
اظهر المزيد [+] اقل [-]Extracellular vesicles in cattle infected with bovine leukaemia virus: isolation and molecular analysis
2024
Szczotka Maria | Wasiak Magdalena | Kuźmak Jacek
Exosomes are nanosized lipid bilayer membranous microvesicles, extracellularly released from a variety of mammalian cells. They mediate intercellular signalling by transporting several types of RNA, lipids and proteins and participate in the intercellular exchange of DNA, RNA, micro RNA, proteins and other components. These microvesicles are present in all body fluids in physiological and pathological conditions and reflect the state of the host organism. The aim of the study was the isolation and molecular determination of exosomes in blood and supernatant fluids of bovine dendritic cell cultures infected with bovine leukaemia virus (BLV).
اظهر المزيد [+] اقل [-]Investigation of doxycycline residues in bones after oral administration to broiler chickens
2024
Gajda Anna | Szymanek-Bany Iwona | Nowacka-Kozak Ewelina | Gbylik-Sikorska Małgorzata
Chicken bones, a by-product of the poultry industry, can directly or indirectly enter the food chain. Bone meal and bone products could be sources of many contaminants. Considering the wide range of uses made of bones in the culinary and food industries, this material needs to be safe and antibiotic residue–free. To determine if such is the case, the concentration of doxycycline in chicken bones was investigated, this antimicrobial being one of the most commonly used in poultry production.
اظهر المزيد [+] اقل [-]Molecular characteristics of fowl adenovirus strains detected in broiler chickens on diets without immunostimulant supplements
2024
Niczyporuk Jowita Samanta | Kozdruń Wojciech | Tomczyk Grzegorz | Piekarska Karolina | Barabasz Marcin | Michalski Marcin
Outbreaks 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 developed clinical symptoms was analysed through virus detection in broiler chicks and correlation of cases with the birds’ immune strength.
اظهر المزيد [+] اقل [-]Probiotic supplementation as an alternative to antibiotics in broiler chickens
2024
Tomczyk Grzegorz | Niczyporuk Jowita Samanta | Kozdruń Wojciech | Sawicka-Durkalec Anna | Bocian Łukasz | Barabasz Marcin | Michalski Marcin
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 productivity of broiler chickens. If the microbiome is populated by supplementation with Lactobacillus, Pediococcus and Saccharomyces spp. – microorganisms with probiotic properties and alternatives to antibiotics – the immune system is stimulated. The use of probiotic supplements in the broiler production cycle can boost bird immunity and prevent adenovirus infection. The resilience of broiler chickens in different feeding schemes including supplementation with these microorganisms was assessed.
اظهر المزيد [+] اقل [-]Phylogenetic analysis of the trypanosomatid parasite Lotmaria passim in honey bees (Apis mellifera) in Poland
2024
Iller Maria | Lipczyńska-Ilczuk Karolina | Sokół Rajmund | Borsuk Grzegorz | Bancerz-Kisiel Agata
Lotmaria passim (L. passim) is a single-celled flagellate which colonises the bee gastrointestinal tract and is highly prevalent in honey bees. This parasite is associated with colony losses. Honey bee (Apis mellifera) colonies were sampled from five apiaries in the north-eastern part of Poland for the phylogenetic analysis of L. passim.
اظهر المزيد [+] اقل [-]Prevalence of Borrelia burgdorferi and Anaplasma phagocytophilum in Ixodes ricinus collected from dogs in eastern Poland
2024
Pańczuk Anna | Tokarska-Rodak Małgorzata | Andrzejuk Patrycja
Ixodes ricinus ticks are an important vector and reservoir of pathogenic microorganisms causing dangerous infectious diseases in humans and animals. The presence of ticks in urban greenery is a particularly important public health concern due to the potential for humans and companion animals to be exposed to tick-borne diseases there. The study assessed the prevalence of Borrelia burgdorferi and Anaplasma phagocytophilum infection in I. ricinus ticks feeding on dogs.
اظهر المزيد [+] اقل [-]Occurrence of herpesvirus in fish
2024
Bergmann Sven Michael | Wang Yingying | Li Yingying | Wang Qing | Klafack Sandro | Jin Yeonhwa | Hofmann Arndt Christian | Kielpinska Jolanta | Becker Anna Maria | Zeng Weiwei
Herpesviruses are common agents in animals of the aquatic environment. They infect many species of fish but only lead to disease in one or two species. Nevertheless, infected fish without clinical symptoms can actively transfer infectious agents to disease-susceptible species. The aim of the study was to identify and prove the natural presence of different herpesviruses.
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