TY - JOUR AU - Marozzi, M AU - Reiczigel, Jenő TI - A progressive shift alternative to evaluate nonparametric tests for skewed data JF - COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION J2 - COMMUN STAT-SIMUL C VL - 47 PY - 2018 IS - 10 SP - 3083 EP - 3094 PG - 12 SN - 0361-0918 DO - 10.1080/03610918.2017.1371745 UR - https://m2.mtmt.hu/api/publication/3338894 ID - 3338894 AB - When the power of different nonparametric tests is evaluated by simulation, the alternative hypothesis should be carefully designed to ensure validity of the results in the specific research field. In the article, we propose a probit-based progressive shift alternative that is more realistic than the simple shift alternative for skewed non-negative data that occur in many research areas. Our motivation comes from parasitology. The progressive shift alternative is used to compare the power of six location-scale tests and seven commonly used location tests for several skewed theoretical and empirical parasite distributions. It is shown that location-scale tests are more powerful than location tests. Programs for applying the methods studied in the article are freely available for download. © 2017 Taylor & Francis Group, LLC LA - English DB - MTMT ER - TY - JOUR AU - Fodor, István AU - Abonyi-Tóth, Zsolt AU - Ózsvári, László TI - Management practices associated with reproductive performance in Holstein cows on large commercial dairy farms. JF - ANIMAL: THE INTERNATIONAL JOURNAL OF ANIMAL BIOSCIENCES J2 - ANIMAL VL - 12 PY - 2018 IS - 11 SP - 2401 EP - 6 PG - 2406 SN - 1751-7311 DO - 10.1017/S1751731118000101 UR - https://m2.mtmt.hu/api/publication/3338842 ID - 3338842 N1 - The research was supported by the Hungarian Ministry of Human Capacities (grant no. 12190/2017/FEKUTSTRAT). The Project was also supported by the European Union and co-financed by the European Social Fund (grant agreement no. EFOP-3.6.1-16-2016-00024, project title: Innovations for intelligent specialization on the University of Veterinary Science and the Faculty of Agricultural and Food Sciences of the Széchenyi István University cooperation). AB - As a result of the increase in herd size and the intensification of production, the complexity of reproductive management has been growing in dairy herds. The aim of our study was to examine the associations of management practices and reproductive performance in Holstein cows on large commercial dairy farms. Management practices applied to cows were surveyed between 22 May and 6 November 2015 in 34 large Holstein-Friesian dairy herds in Hungary. Individual data of 23 784 cows that calved between 1 January 2014 and 31 December 2014 in the surveyed herds were gathered. Associations between the management practices and the reproductive parameters were analyzed by mixed effects models. Regarding heat abatement we found that ventilation with sprinklers was associated with the shortest breeding interval (P0.05) results to lack of heat stress protection. It was also revealed, that lack of a well-established voluntary waiting period (VWP) or a VWP shorter than 50 days was associated with less days to first service (P<0.01), shorter breeding interval (P<0.01) and calving to conception interval (P<0.05), as well as higher odds of carrying a calf by 200 days in milk (P<0.01) compared with those using a VWP of at least 50 days. Those farms that applied transrectal ultrasonography were more likely to use ventilation with sprinklers (P<0.05), hormonal synchronization (P<0.01) and to perform early pregnancy diagnosis followed by pregnancy recheck (P<0.05). The application of transrectal ultrasonography with one of the aforementioned practices was associated with reduced days to first service (P<0.05), shorter breeding interval (P<0.05) and higher odds of pregnancy at 200 days in milk (P<0.05). Our study highlights the management practices most closely related to improved reproductive performance, which are, therefore, suggested to be applied on dairy farms, considering the local circumstances of the individual farms. LA - English DB - MTMT ER - TY - JOUR AU - Fodor, István AU - Baumgartner, Walter AU - Monostori, Attila AU - Abonyi-Tóth, Zsolt AU - Ózsvári, László TI - Holstein-fríz tenyészüszők szaporodásbiológiai menedzsmentje és mutatói nagy létszámú hazai tehenészetekben JF - MAGYAR ÁLLATORVOSOK LAPJA J2 - MAGY ALLATORVOSOK VL - 140 PY - 2018 IS - 2 SP - 67 EP - 74 PG - 8 SN - 0025-004X UR - https://m2.mtmt.hu/api/publication/3338066 ID - 3338066 N1 - A projekt az Európai Unió támogatásával, az Európai Szociális Alap (ESZA) társfinanszírozásával valósul meg (a támogatási szerződés száma: EFOP-3.6.1-16-2016-00024, projekt címe: Intelligens szakosodást szolgáló fejlesztések az Állatorvostudományi Egyetem és a Széchenyi István Egyetem Mezőgazdaság- és Élelmiszertudományi Karának együttműködésében), ill. az Emberi Erőforrások Minisztériuma támogatta (12190/2017/FEKUTSTRAT). LA - English DB - MTMT ER - TY - JOUR AU - Fodor, István AU - Baumgartner, W AU - Abonyi-Tóth, Zsolt AU - Lang, Zsolt AU - Ózsvári, László TI - Associations between management practices and major reproductive parameters of Holstein-Friesian replacement heifers JF - ANIMAL REPRODUCTION SCIENCE J2 - ANIM REPROD SCI VL - 188 PY - 2018 SP - 114 EP - 122 PG - 9 SN - 0378-4320 DO - 10.1016/j.anireprosci.2017.11.015 UR - https://m2.mtmt.hu/api/publication/3322722 ID - 3322722 N1 - The research was supported by the Hungarian Ministry of Human Capacities [grant number 12190/2017/FEKUTSTRAT] and by the Hungarian National Research Fund [grant number OTKA/NKFIH K108571]. The Project was also supported by the European Union and co-financed by the European Social Fund (grant agreement no. EFOP-3.6.1-16-2016-00024, project title: Innovations for Intelligent Specialisation on the University of Veterinary Science and the Faculty of Agricultural and Food Sciences of the Széchenyi István University Cooperation). AB - The aim of this study was to assess the relationship between the reproductive management practices and the performance of replacement heifers on large commercial dairy farms. The individual data of 14,763 heifers, first inseminated in 2014, were analysed from 33 Holstein-Friesian dairy herds in Hungary. The relationships between management practices and major reproductive parameters (age at first service, AFS; age at first calving, AFC; conception risk to first insemination, CR1; and pregnancy status at 20 months of age) were examined by mixed-effects models, with the herd as the random effect. The results showed that farms using oestrus detection aids experienced reduced AFS (p < 0.001) and AFC (p = 0.001). Observation of oestrus for shorter periods instead of continuously showed a tendency towards lower AFC (p = 0.057) and was associated with higher odds of pregnancy at 20 months of age (p = 0.020). Heifers on farms using sexed semen had younger AFS, but poorer CR1, compared to those using conventional semen exclusively (p < 0.05). In addition, the odds of heifers being pregnant by 20 months of age was higher on farms with more experience using sexed semen (p = 0.020). Frequent pregnancy diagnosis (i.e. more than once per week) was associated with younger AFC (p = 0.023). Our results suggest the use of certain advanced reproductive management practices for heifer reproductive management in large dairy herds (e.g. oestrus detection aids), which can improve reproductive efficiency considerably, but are currently used only to a limited extent. © 2017 Elsevier B.V. LA - English DB - MTMT ER - TY - JOUR AU - Szigeti, Viktor AU - Kőrösi, Ádám AU - Harnos, Andrea AU - Kis, János TI - Temporal changes in floral resource availability and flower visitation in a butterfly JF - ARTHROPOD - PLANT INTERACTIONS J2 - ARTHROPOD-PLANT INTE VL - 12 PY - 2018 IS - 2 SP - 177 EP - 189 PG - 13 SN - 1872-8855 DO - 10.1007/s11829-017-9585-6 UR - https://m2.mtmt.hu/api/publication/3316345 ID - 3316345 N1 - Funding Agency and Grant Number: Szent Istvan University, Doctoral School of Veterinary Science; [NKB-4185/59/2012]; [NKB-4533/53/2013]; [NKB-4848/53/2014] Funding text: We thank Zsolt Lang, Peter Kabai and three anonymous reviewers for their comments that helped us to improve the manuscript. Csilla Danka helped us in field work. Janos Nagy, Gabor Turcsanyi and Iren Turcsanyine Siller helped in identifying plant species and designing botanical sampling. We are grateful for the help of the Duna-Ipoly National Park. We used free software (Libre-Office, Mendeley, R, RKWard under Ubuntu). During this study, VS received a PhD fellowship at Szent Istvan University, Doctoral School of Veterinary Science. The project was supported by the grants NKB-4185/59/2012, NKB-4533/53/2013 and NKB-4848/53/2014. Field work was licensed by the Hungarian nature conservation authorities: KTVF: 28512-2/2010. LA - English DB - MTMT ER - TY - JOUR AU - Ágh, Nóra AU - Kovács, Szilvia AU - Nemesházi, Edina AU - Szabó, Krisztián TI - Univerzális, ivarhatározáshoz használt CHD1 markerek alkalmazhatósága különböző madárrendekben JF - MAGYAR ÁLLATORVOSOK LAPJA J2 - MAGY ALLATORVOSOK VL - 140 PY - 2018 IS - 1 SP - 47 EP - 59 PG - 13 SN - 0025-004X UR - https://m2.mtmt.hu/api/publication/3312188 ID - 3312188 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Reiczigel, Jenő AU - Ispány, Márton AU - Tusnády, Gábor AU - Michaletzky, György AU - Marco, Marozzi TI - Bias-corrected estimation of the Rudas–Clogg– Lindsay mixture index of fit JF - BRITISH JOURNAL OF MATHEMATICAL & STATISTICAL PSYCHOLOGY J2 - BRIT J MATH STAT PSY VL - 71 ET - 0 PY - 2018 IS - 3 SP - 459 EP - 471 PG - 13 SN - 0007-1102 DO - 10.1111/bmsp.12118 UR - https://m2.mtmt.hu/api/publication/3269304 ID - 3269304 N1 - Funding Agency and Grant Number: Hungarian National Research Fund [OTKA K 108571]; Szent Istvan University, Faculty of Veterinary Science\n Funding text: The authors thank two anonymous referees for their valuable suggestions and constructive criticism. The work of the first author was supported by the Hungarian National Research Fund (OTKA K 108571) and by the Research Faculty Grant 2015 of the Szent Istvan University, Faculty of Veterinary Science.\n AB - Rudas, Clogg, and Lindsay (1994, J. R Stat Soc. Ser. B, 56, 623) introduced the so-called mixture index of fit, also known as pi-star (*), for quantifying the goodness of fit of a model. It is the lowest proportion of contamination' which, if removed from the population or from the sample, makes the fit of the model perfect. The mixture index of fit has been widely used in psychometric studies. We show that the asymptotic confidence limits proposed by Rudas etal. (1994, J. R Stat Soc. Ser. B, 56, 623) as well as the jackknife confidence interval by Dayton (, Br. J. Math. Stat. Psychol., 56, 1) perform poorly, and propose a new bias-corrected point estimate, a bootstrap test and confidence limits for pi-star. The proposed confidence limits have coverage probability much closer to the nominal level than the other methods do. We illustrate the usefulness of the proposed method in practice by presenting some practical applications to log-linear models for contingency tables. LA - English DB - MTMT ER - TY - CHAP AU - Hejel, Péter AU - Harnos, Andrea AU - Könyves, László ED - Szenci, Ottó ED - Brydl, Endre TI - A bendőbeli pH- és hőmérsékletértékek változásának vizsgálata a környezeti hőmérséklet és páratartalom, valamint a tejtermelés függvényében többször ellett holstein-fríz tehenekben. Előzetes eredmények.. Investigation of changes in intra-luminal temperature and pH-values in context of ambient temperature, humidity and milk production in multiparous Holstein-friesian cows. A preliminary study. TS - Investigation of changes in intra-luminal temperature and pH-values in context of ambient temperature, humidity and milk production in multiparous Holstein-friesian cows. A preliminary study. T2 - A Magyar Buiatrikus Társaság XXVII. Nemzetközi Kongresszusa = 27th International Congress of the Hungarian Association for Buiatrics PB - Magyar Buiatrikusok Társasága CY - Budapest SN - 9789638794291 PY - 2017 SP - 156 EP - 165 PG - 10 UR - https://m2.mtmt.hu/api/publication/3345893 ID - 3345893 LA - English DB - MTMT ER - TY - JOUR AU - Csöndes, Judit AU - Bajcsayné Fábián, Ibolya AU - Szabó, Bernadett AU - Máthé, Ákos AU - Vajdovich, Péter TI - Assessment of adrenocortical reserve capacity and inflammatory parameters in critically ill dogs JF - ACTA VETERINARIA HUNGARICA J2 - ACTA VET HUNG VL - 65 PY - 2017 IS - 4 SP - 475 EP - 486 PG - 12 SN - 0236-6290 DO - 10.1556/004.2017.045 UR - https://m2.mtmt.hu/api/publication/3332024 ID - 3332024 AB - Inflammatory markers and adrenocorticotropic hormone (ACTH) stimulation test results may help us recognise critically ill dogs with poor disease outcome. Systemic inflammatory response syndrome (SIRS) criteria, the fast version of the Acute Patient Physiologic and Laboratory Evaluation Score (APPLE(fast)), complete blood count, albumin and C-reactive protein (CRP) levels, baseline and stimulated cortisol levels and Delta cortisol value were recorded in 50 client-owned dogs admitted to the Small Animal Hospital of the University of Veterinary Medicine Budapest with various inflammatory or neoplastic conditions. Increasing APPLE(fast) score was associated with a decreasing chance of survival (P = 0.0420). The Delta cortisol value was significantly higher in SIRS dogs than in non-SIRS dogs (mean +/- SD Delta cortisol(SIRS): 342.5 +/- 273.96; mean +/- SD Delta cortisol(non-SIRS): 175.3 +/- 150.35; P = 0.0443). Elevated baseline or stimulated cortisol levels were associated with a higher chance of non-survival (P = 0.0135 and P = 0.0311, respectively). These data indicate that pathologically higher baseline and stimulated cortisol levels represent an exaggerated stress response in critically ill dogs, which is negatively associated with survival. LA - English DB - MTMT ER - TY - JOUR AU - Tibor, Csörgő AU - Fehérvári, Péter AU - Zsolt, Karcza AU - Harnos, Andrea TI - Exploratory analyses of migration timing and morphometrics of the Common Nightingale (Luscinia megarhynchos) JF - ORNIS HUNGARICA J2 - ORNIS HUNG VL - 25 PY - 2017 IS - 2 SP - 116 EP - 140 PG - 25 SN - 1215-1610 DO - 10.1515/orhu-2017-0019 UR - https://m2.mtmt.hu/api/publication/3330307 ID - 3330307 LA - English DB - MTMT ER -