TY - JOUR AU - Steiner, David AU - Bartók, Tibor AU - Sulyok, Michael AU - Szekeres, András AU - Varga, Mónika AU - Horváth, Levente AU - Rost, Helmut TI - Global Perspectives on Mycotoxin Reference Materials (Part I): Insights from Multi-Supplier Comparison Study Including Aflatoxin B1, Deoxynivalenol and Zearalenone JF - TOXINS J2 - TOXINS VL - 16 PY - 2024 IS - 9 SP - 397 SN - 2072-6651 DO - 10.3390/toxins16090397 UR - https://m2.mtmt.hu/api/publication/35348631 ID - 35348631 AB - We conducted a comprehensive examination of liquid mycotoxin reference standards. A total of 30 different standards were tested, each containing 10 samples of three distinct substances: Aflatoxin B1, Deoxynivalenol, and Zearalenone. The standards were sourced from 10 different global market leading manufacturers. To facilitate comparison, all the standard sets were adjusted to the same concentration level. The standards were analyzed using the techniques LC-MS/MS, HPLC-DAD, and LC-HRMS to assess their quality attributes. Regarding the validation of the reference values, it was observed that 30% of the suppliers provided reference standards that were either below the lower acceptance limit or above the higher acceptance limit, confirmed by both the LC-MS/MS and HPLC-DAD methods. Furthermore, a total of 12 impurities were found in the DON standards, 10 in the AFB1 standards, and 8 in the ZON standards, distributed across all the suppliers. Therefore, this study suggests relevant adjustments to the ISO 17034 standard, proposing that the purity of a raw material should be uniformly based on q-NMR analysis, as most manufacturers state the purity of their certificates is determined using HPLC-UV or LC-MS/MS. Liquid standards with a shelf life of ≤1 year should not exceed an uncertainty of 3%. Standards that have a longer shelf life should not have more than 5% uncertainty. This study also emphasizes the importance of stability. The standards should undergo continuous long-term monitoring; otherwise, products may exhibit a target value of only 80%, as seen in one instance. It is also recommended to include proof of HPLC and LC-MS/MS analyses on the certificate of each released batch of a final product. LA - English DB - MTMT ER - TY - JOUR AU - Sipos, Tamás AU - Orsi-Gibicsár, Szilvia AU - Schieszl, Tamás AU - Donkó, Tamás AU - Zakk, Zsombor AU - Farkas, Sándor AU - Binder, Antal AU - Keszthelyi, Sándor TI - Tracking Varroa Parasitism Using Handheld Infrared Cameras: Is Eusocial Fever the Key? JF - INSECTS J2 - INSECTS VL - 15 PY - 2024 IS - 9 SN - 2075-4450 DO - 10.3390/insects15090693 UR - https://m2.mtmt.hu/api/publication/35295178 ID - 35295178 AB - The Varroa destructor is the most significant bee parasite and the greatest threat to bee health all around the world. Due to its hidden lifestyle, detection within the brood cell is only possible through invasive techniques. Enhancing detection methods is essential for advancing research on population dynamics, spread, selection efforts, and control methodologies against the mite. In our study, we employed infrared imaging to measure the thermal differences in parasite and intact Apis mellifera worker broods. Experiments were conducted over two years at the MATE Kaposvár Campus in Hungary involving five beehives in 2022 and five beehives in 2023. A FLIR E5-XT WIFI handheld infrared camera was used to create a heat map of capped brood frames. Our results indicate that the resolution of these cameras is sufficient to provide detailed IR images of a bee colony, making them suitable to detect temperature differences in intact and Varroa parasitized capped brood cells. Mite parasitism causes a time-dependent and sustained temperature increase in developing bee pupae, observable regardless of mite number. Our work demonstrates two different heating patterns: hotspot heating and heating cells that are responsible for the elevated temperature of the Varroa-infested cells as a social fever response by the worker bees. Based on our results, future research combined with AI-based image evaluation software could offer beekeepers and researchers practical and valuable tools for high-throughput, non-invasive Varroa detection in the field. LA - English DB - MTMT ER - TY - JOUR AU - Nagy, István AU - Bokor, Árpád AU - Farkas, János AU - Nguyen, Anh Thi AU - Posta, János AU - Kövér, György TI - Correlation Analysis among the Various Inbreeding Coefficients of Pannon Ka Rabbits JF - DIVERSITY (BASEL) J2 - DIVERSITY-BASEL VL - 16 PY - 2024 IS - 9 PG - 6 SN - 1424-2818 DO - 10.3390/d16090524 UR - https://m2.mtmt.hu/api/publication/35200658 ID - 35200658 AB - In a closed population with a limited population size, mating of related animals is unavoidable. In this study, the genealogy data of a synthetic maternal rabbit breed called Pannon Ka were used to calculate different inbreeding coefficients. The evaluated animals were born between 1995 and 2020, and the pedigree consisted of 5819 animals that originated from 4205 rabbit does and from 1314 rabbit bucks. The pedigree was further extended with 16,013 dummy progeny records in order to calculate litter inbreeding coefficients. Besides the conventional Wright inbreeding coefficients, the so-called ancestral and new inbreeding coefficients were also calculated using the gene dropping method. By the end of the evaluated period, the litter inbreeding increased to almost 11 and 60% for Wright and Ballou inbreeding, while the Kalinowski and the Kalinowski new inbreeding coefficients were 9.25 and 16.67%, respectively. Correlation coefficients were calculated for the does and for the litters. Finally, the effects of pedigree length and completeness were also taken into account using the complete generation equivalents in a partial correlation analysis. Based on the results, it could be seen that the different ancestral inbreeding coefficients had high correlation. Similarly, the conventional Wright inbreeding coefficients showed strong correlation with the new inbreeding coefficients. On the contrary, the correlation between ancestral and new inbreeding coefficients was low. Taking the complete generation equivalent into account did not give unambiguous results. It could be concluded that the different inbreeding coefficients are based on different concepts, and they are clearly different population parameters. LA - English DB - MTMT ER - TY - JOUR AU - Keszthelyi, Sándor AU - Békési, Pál AU - Lukács, Helga AU - Binder, Antal AU - Kazinczi, Gabriella TI - A NAPRAFORGÓ VÉDELME IV. NÖVÉNYVÉDELMI TECHNOLÓGIÁJA JF - NÖVÉNYVÉDELEM J2 - NÖVÉNYVÉDELEM VL - 85 PY - 2024 IS - 8 SP - 345 EP - 362 PG - 18 SN - 0133-0829 UR - https://m2.mtmt.hu/api/publication/35167504 ID - 35167504 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Szabó, András AU - Emri, Miklós AU - Tóth, Zoltán AU - Fajtai, Dániel AU - Donkó, Tamás AU - Petneházy, Örs AU - Kőrösi, Dénes AU - Repa, Imre AU - Takács, Alíz AU - Kisiván, Tímea AU - Gerencsér, Zsolt AU - Ali, Omeralfaroug AU - Turbók, Janka AU - Bóta, Brigitta AU - Gömbös, Patrik AU - Romvári, Róbert AU - Kovács, Melinda TI - Measurement of hepatic glucose (18F-fluorodeoxyglucose) uptake with positron emission tomography-magnetic resonance imaging in fumonisin B intoxicated rabbit bucks JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 14 PY - 2024 IS - 1 SN - 2045-2322 DO - 10.1038/s41598-024-68210-3 UR - https://m2.mtmt.hu/api/publication/35167253 ID - 35167253 AB - Rabbit bucks (bodyweight 5 kg) underwent dietary intoxication with fumonisin B series mycotoxins (FB 1 + FB 2 + FB 3 , 15 mg/kg diet) for 14 days to test the applicability of positron emission tomography-magnetic resonance (PET MR) hybrid imaging in characterizing experimentally induced mild hepatotoxicosis. 18 F-fluorodeoxyglucose ( 18 F-FDG) radiotracer-aided imaging was performed before and after FBs administration on identical animals, and at both time points, blood was sampled for haematology and clinical chemistry. Kinetic PET image analysis revealed time-activity curves with uptake maxima below 1 min in the liver, renal cortex, portal vein, lung and coarctatio aortae. In the frame of static PET image analysis, based on the standardized uptake value (SUV), the so-called metabolic liver volume (MLV, liver volume defined by over 0.9 × average liver SUV) and the total liver glycolysis (TLG, MLV multiplied by the SUVmean) were calculated. Mycotoxicosis increased total liver glycolysis (p < 0.04) after 14 days and liver tissue TLG inhomogeneity was minimal. Pearson correlation between TLG and alkaline phosphatase (ALP) was positive (0.515), while negative with LDH and AST (− 0.721 and − 0.491, respectively). Results indicate a slight hepatic mycotoxin effect and significantly increased glucose uptake intensity, which has been sensitively detected with molecular imaging ( 18 F-FDG PET MRI) in the rabbit model. LA - English DB - MTMT ER - TY - JOUR AU - Demeter, Csongor AU - Juráskó, Róbert TI - Házi nyulak kokcidiózis-vizsgálata JF - MAGYAR ÁLLATTENYÉSZTŐK LAPJA J2 - MAGYAR ÁLLATTENYÉSZTŐK LAPJA VL - 29 PY - 2024 IS - 7 SP - 30 EP - 31 PG - 2 SN - 1417-7811 UR - https://m2.mtmt.hu/api/publication/35143414 ID - 35143414 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Nguyen, Anh Thi AU - Nagy, István TI - Physiological and Genetic Aspects of some Fitness Traits Performance in Pigs JF - AGRICULTURAE CONSPECTUS SCIENTIFICUS J2 - AGR CONSP SCI VL - 89 PY - 2024 IS - 2 SP - 95 EP - 103 PG - 9 SN - 1331-7768 UR - https://m2.mtmt.hu/api/publication/35142776 ID - 35142776 LA - English DB - MTMT ER - TY - CHAP AU - Remenyik, Judit AU - Noémi Kovács-Forgács, Ildikó AU - Pesti-Asbóth, Georgina AU - Gál, Ferenc AU - Csötönyi, Orsolya AU - Babinszky, László AU - Halas, Veronika ED - Babinszky, László TI - Occurrence of Hyperhomocysteinemia in Broilers and Reduction of Its Harmful Effects with Betaine- and Berberine-Supplemented Diets T2 - Feed Additives - Recent Trends in Animal Nutrition [Working Title] PB - IntechOpen CY - Rijeka T3 - Veterinary Medicine and Science ; 0. PY - 2024 DO - 10.5772/intechopen.115082 UR - https://m2.mtmt.hu/api/publication/35138678 ID - 35138678 AB - Homocysteine is a metabolic intermediate in the methionine-cysteine conversion. High level of homocysteine in blood leads to changes in methylation pathways and consequently in transcriptional activation; therefore, it can disrupt gene expression. This chapter presents the biochemical pathways of the transformation of homocysteine in broilers and demonstrates the beneficial effects of certain bioactive feed additives (betaine and berberine) to health-related and production problems caused by the accumulation of homocysteine. Based on recent scientific findings, the following conclusions have been drawn: Hyperhomocysteinosis has received little attention in the field of avian physiology research. Currently used feed additives, such as betaine, potentially decrease circulating homocysteine, but support only one of the pathways responsible for homocysteine decomposition. Various phytonutrients may be suitable owing to their pleiotropic bioactive components, such as berberine. It can potentially maintain redox homeostasis in animals and modulate immune responses and therefore may be able to provide for liver protective functions. Additionally, it can encourage healthy tissue to express enzymes that are responsible for the degradation of homocysteine. Further studies are recommended to investigate how effectively berberine can reduce the incidence of hyperhomocysteinemia in broilers and whether it is necessary to use feed supplements throughout the life cycles of birds. LA - English DB - MTMT ER - TY - JOUR AU - Czeibert, Kálmán AU - Nagy, Gergely AU - Csörgő, Tibor AU - Donkó, Tamás AU - Petneházy, Örs AU - Csóka, Ádám AU - Garamszegi, László Zsolt AU - Kolm, Niclas AU - Kubinyi, Enikő TI - High-resolution computed tomographic (HRCT) image series from 413 canid and 18 felid skulls JF - SCIENTIFIC DATA J2 - SCI DATA VL - 11 PY - 2024 IS - 1 SN - 2052-4463 DO - 10.1038/s41597-024-03572-x UR - https://m2.mtmt.hu/api/publication/35135548 ID - 35135548 N1 - Export Date: 18 September 2024 Correspondence Address: Kubinyi, E.; Department of Ethology, Hungary; email: eniko.kubinyi@ttk.elte.hu AB - Computed tomography (CT) is a non-invasive, three-dimensional imaging tool used in medical imaging, forensic science, industry and engineering, anthropology, and archaeology. The current study used high-resolution medical CT scanning of 431 animal skulls, including 399 dog skulls from 152 breeds, 14 cat skulls from 9 breeds, 14 skulls from 8 wild canid species (gray wolf, golden jackal, coyote, maned wolf, bush dog, red fox, Fennec fox, bat-eared fox), and 4 skulls from 4 wild felid species (wildcat, leopard, serval, caracal). This comprehensive and unique collection of CT image series of skulls can provide a solid foundation not only for comparative anatomical and evolutionary studies but also for the advancement of veterinary education, virtual surgery planning, and the facilitation of training in sophisticated machine learning methodologies. LA - English DB - MTMT ER - TY - JOUR AU - Sipos, Tamás AU - Keszthelyi, Sándor TI - A mézelő méhek beporzási tevékenységének változása eltérő növénytermesztési struktúrákban JF - AGROFÓRUM - A NÖVÉNYTERMESZTŐK ÉS NÖVÉNYVÉDŐK HAVILAPJA J2 - AGROFÓRUM-NÖVÉNYTERMESZTŐK NÖVÉNYVÉDŐK VL - 35 PY - 2024 IS - 6 SP - 78 EP - 80 PG - 3 SN - 1788-5884 UR - https://m2.mtmt.hu/api/publication/35074743 ID - 35074743 LA - Hungarian DB - MTMT ER -