@article{MTMT:34749089,
	title = {A retrospective study of thermal events on the mortality rate of hutch-reared dairy calves},
	url = {https://m2.mtmt.hu/api/publication/34749089},
	author = {Jurkovich, Viktor and Bakony, Mikolt and Reiczigel, Jenő},
	doi = {10.3389/fvets.2024.1366254},
	journal-iso = {FRONT VET SCI},
	journal = {FRONTIERS IN VETERINARY SCIENCE},
	volume = {11},
	unique-id = {34749089},
	year = {2024},
	eissn = {2297-1769}
}

@article{MTMT:34557483,
	title = {Uterine Disease in Dairy Cows: A Comprehensive Review Highlighting New Research Areas},
	url = {https://m2.mtmt.hu/api/publication/34557483},
	author = {Várhidi, Zsóka and Csikó, György and Bajcsy, Árpád Csaba and Jurkovich, Viktor},
	doi = {10.3390/vetsci11020066},
	journal-iso = {VET SCI},
	journal = {VETERINARY SCIENCES},
	volume = {11},
	unique-id = {34557483},
	issn = {2306-7381},
	abstract = {Uterine disease is an intensely studied part of dairy cattle health management as it heavily affects many commercial dairy farms and has serious economic consequences. Forms of the disease, pathophysiology, pathogens involved and the effects of uterine disease on the health and performance of cows have already been well described by various authors. Lately, researchers’ attention has shifted towards the healthy microbiome of the uterus and the vagina to put emphasis on prevention rather than treatment. This aligns with the growing demand to reduce the use of antibiotics or—whenever possible—replace them with alternative treatment options in farm animal medicine. This review provides a comprehensive summary of the last 20 years of uterine disease research and highlights promising new areas for future studies.},
	year = {2024}
}

@article{MTMT:34483289,
	title = {Investigating the Prevalence of Paratuberculosis in Hungarian Large-Scale Dairy Herds and the Success of Control Measures over Four Years},
	url = {https://m2.mtmt.hu/api/publication/34483289},
	author = {Bognár, Barbara and Khol, Johannes Lorenz and Baumgartner, Walter and Fornyos, Kinga and Papp, Melitta and Abonyi-Tóth, Zsolt and Bakony, Mikolt and Jurkovich, Viktor},
	doi = {10.3390/ani14010151},
	journal-iso = {ANIMALS-BASEL},
	journal = {ANIMALS},
	volume = {14},
	unique-id = {34483289},
	abstract = {Paratuberculosis (PTB) is a severe, slow-developing, untreatable disease of ruminants. Worldwide, the disease affects more than 50% of herds in the dairy industry, and causes substantial economic losses for dairy producers. Diagnostic tests show limited sensitivity, especially in the early stages of the disease. Our study aimed to investigate the seroprevalence of Mycobacterium avium ssp. paratuberculosis (MAP) in large-scale dairy herds in Hungary, in association with the self-reported presence or absence of screening and intervention measures against MAP transmission. We processed data from 42 large-scale Holstein Friesian farms in Hungary between 1 January 2018 and 31 December 2021. An average of 32,009 (min.: 31,702; max.: 32,207) animals were blood sampled yearly (127,372 in total during the four years), corresponding to 15% of the Hungarian dairy cattle population. All female cattle older than 2 years were blood sampled on the farms enroled in the study. The samples were tested using a commercial ELISA (IDEXX paratuberculosis screening Ab test). Farm managers were interviewed about their on-farm diagnostic and intervention approaches using a uniform questionnaire, including questions on the level of awareness, frequency of ELISA and PCR testing, and their strategies for culling adult animals and reducing transmission to newborn calves. By comparing the annual rate of change in seroprevalence and the amount of change observed during the four-year period, we concluded that test-and-cull strategies implemented in parallel with newborn calf management that aimed at preventing MAP transmission were superior to test-and-cull strategies alone; moreover, fortifying culling decision making via additional ELISA and PCR tests is superior to using a single ELISA result. For farms that carried out a complex program with both “test-and-cull” and proper newborn calf management, there was a proportional reduction in apparent seroprevalence at an average of 22.8% per year. Fifteen of the sampled farms had no measures in place to control paratuberculosis. On these farms, the seroprevalence increased by 12.1% per year on average.},
	year = {2024},
	eissn = {2076-2615},
	orcid-numbers = {Baumgartner, Walter/0000-0001-7366-7242; Abonyi-Tóth, Zsolt/0000-0002-5585-3313; Bakony, Mikolt/0000-0002-4801-8459}
}

@CONFERENCE{MTMT:34133182,
	title = {The estimation of 4-year seroprevalence changes of paratuberculosis and evaluating the effectiveness of eradication programs in large-scale Hungarian dairy herds},
	url = {https://m2.mtmt.hu/api/publication/34133182},
	author = {Bognár, Barbara and Melitta, Papp and Jurkovich, Viktor},
	booktitle = {European Buiatrics Congress and ECBHM Jubilee Symposium Abstract book},
	unique-id = {34133182},
	year = {2023},
	pages = {375-376}
}

@CONFERENCE{MTMT:34133181,
	title = {Determination and antibiotic susceptibility testing of normal vaginal bacterial flora of dairy cows},
	url = {https://m2.mtmt.hu/api/publication/34133181},
	author = {Várhidi, Zsóka and Csikó, György and Palócz, Orsolya and Sátorhelyi, Péter and Erdélyi, Balázs and Jurkovich, Viktor},
	booktitle = {European Buiatrics Congress and ECBHM Jubilee Symposium Abstract book},
	unique-id = {34133181},
	year = {2023},
	pages = {346-348},
	orcid-numbers = {Palócz, Orsolya/0000-0003-3925-8773}
}

@CONFERENCE{MTMT:34133179,
	title = {The effects of a phosphate binding feed supplement fed prepartum on the phosphate and calcium balance in dairy cows},
	url = {https://m2.mtmt.hu/api/publication/34133179},
	author = {Jurkovich, Viktor and Bakony, Mikolt and Per, Theilgaard and Kovács, Levente},
	booktitle = {European Buiatrics Congress and ECBHM Jubilee Symposium Abstract book},
	unique-id = {34133179},
	year = {2023},
	pages = {141-142}
}

@CONFERENCE{MTMT:34133176,
	title = {Effect of prepartum magnesium butyrate supplementation on rumination time, milk yield and composition, and blood parameters in dairy cows},
	url = {https://m2.mtmt.hu/api/publication/34133176},
	author = {Fébel, Hedvig and Joan, Edwards and Pajor, Ferenc and Jurkovich, Viktor and Bakony, Mikolt and Kovács, Levente},
	booktitle = {European Buiatrics Congress and ECBHM Jubilee Symposium Abstract book},
	unique-id = {34133176},
	year = {2023},
	pages = {137-138},
	orcid-numbers = {Pajor, Ferenc/0000-0003-1501-0968}
}

@article{MTMT:34056428,
	title = {The use of body surface temperatures in assessing thermal status of hutch-reared dairy calves in shaded and unshaded conditions},
	url = {https://m2.mtmt.hu/api/publication/34056428},
	author = {Bakony, Mikolt and Kovács, Levente and Kézér, Fruzsina Luca and Jurkovich, Viktor},
	doi = {10.3389/fvets.2023.1162708},
	journal-iso = {FRONT VET SCI},
	journal = {FRONTIERS IN VETERINARY SCIENCE},
	volume = {10},
	unique-id = {34056428},
	abstract = {The study was carried out in a Hungarian large-scale dairy farm during a 5-day period in hot August weather. Altogether 16 preweaning calves were chosen for the study. An agricultural mesh with 80% shielding was stretched over eight calf cages at 2 m from the ground to shield the cages in their entirety, while eight others were left unshaded. Ambient temperature and relative humidity were measured in 10 min intervals inside and outside one of the hutches in the shaded and unshaded groups during the total length of the study. The rectal temperature of the calves was measured by a digital thermometer every 4 h. Surface temperatures were measured on body parts, in the same intervals as rectal temperature with an infrared thermometer. Measuring sites included: the leg (metacarpus), muzzle, eye bulb, scapula, and ear. Statistical analyses were performed to assess the effects of shading on environmental and body temperatures and to also assess the strength of the association between core, skin and ambient temperatures; to estimate the temperature gradient between body shell and core; to compare the changes in heat dissipation capacity of the different body regions (as represented by temperatures of various sites) with increasing ambient temperature controlling for shaded or unshaded conditions; and to predict the risk of hyperthermia (rectal temperature not lower than 39.5°C) with the CART classification method. The average rectal temperatures suggest that the temperature conditions both in shaded and unshaded groups imposed a severe heat load on the calves. The temperature of the body shell, as represented by skin temperatures, shows a much more significant variation, similar to ambient temperature. As expected, areas that are closer to the core of the body (ear and eye) show less difference from rectal temperature and show a narrower range (lower variance), as more distal regions (leg, scapula) have a wider range. Body surface temperatures are more related to ambient temperature in calves than rectal temperature. The predictive value of infrared body surface temperatures for predicting heat stress or rectal temperature is low.},
	year = {2023},
	eissn = {2297-1769}
}

@article{MTMT:33992359,
	title = {Effect of ad libitum feeding of Holstein Friesian calves on immunological parameters and molecular stress on a transcriptional level},
	url = {https://m2.mtmt.hu/api/publication/33992359},
	author = {Bodrogi, Lilla and Horváth, Borbála Blanka and Jurkovich, Viktor and Kiss, Gerda Zsuzsanna and Bagi, Zoltán and Bakony, Mikolt and Kusza, Szilvia},
	doi = {10.1016/j.sjbs.2023.103701},
	journal-iso = {SAUDI J BIOL SCI},
	journal = {SAUDI JOURNAL OF BIOLOGICAL SCIENCES},
	volume = {30},
	unique-id = {33992359},
	issn = {1319-562X},
	abstract = {Our aim was to compare the health and performance of ad libitum (ADLIB) and restrictedly fed Holstein Friesian heifer calves. Calves were selected to ADLIB (n=13) and control (n=13) groups randomly. The period of ADLIB feeding lasted for 3 weeks after colostrum supplementation. The calves in the control group received the same milk replacer, which was supplied according to the restrained feeding schedule of the farm. There was no difference between the two groups in weight, weight gain or movement activity, furthermore in the values of glucose, albumin, total protein, BHB, AST, oxidant and antioxidant status incl. dROM, PAT and OSI. The IL8 gene had higher levels (non significant, p>0.05) of expression in the ADLIB group during the first 20 days of life, which indicates that ADLIB feeding might potentiate a stronger immune response to environmental stress. The IGF1 gene showed increased expression in the ADLIB fed group at almost all time points, however the difference was already detected on the first day of the study, indicating the importance of individual differences even within the same breed. During the first 10 days INS expression was higher in the restricted group, followed by a shift by day 20 and after, when the ADLIB group showed a higher relative expression level. The observed values describe a trend that, although not significant (p>0.05), would seem to indicate that ADLIB feeding might potentiate a stronger immune response to environmental stress.},
	year = {2023},
	eissn = {2213-7106},
	orcid-numbers = {Bodrogi, Lilla/0000-0003-4696-9282; Bagi, Zoltán/0000-0002-3832-3556}
}

@article{MTMT:33751260,
	title = {Effect of Prepartum Magnesium Butyrate Supplementation on Rumination Time, Milk Yield and Composition, and Blood Parameters in Dairy Cows},
	url = {https://m2.mtmt.hu/api/publication/33751260},
	author = {Fébel, Hedvig and Edwards, Joan and Pajor, Ferenc and Jurkovich, Viktor and Bakony, Mikolt and Kovács, Levente},
	doi = {10.3390/vetsci10040276},
	journal-iso = {VET SCI},
	journal = {VETERINARY SCIENCES},
	volume = {10},
	unique-id = {33751260},
	issn = {2306-7381},
	abstract = {Background: Magnesium butyrate (MgB) supplementation of dairy cows during the three-week close-up period was tested for its effects on blood energy analytes, rumination time, inflammation, and lactation performance. Methods: Daily milk yield was recorded and weekly milk samples collected for the first 70 days of lactation from MgB supplemented (MgB, n = 34), and unsupplemented (Control, n = 31) multiparous Holstein-Friesian cows. During a period from week 3 to week 10 postpartum, blood samples were taken and analyzed for various parameters, and ruminant activity was measured. Results: The MgB group yielded 25.2% more milk than the Control during week 1, and had increased milk fat and protein concentrations over a longer duration. Somatic cell counts (SCC) were decreased in the MgB group independent of days in milk. No differences were observed between groups in terms of plasma non-esterified fatty acids, β-hydroxybutyrate, glucose, or blood iCa levels. The MgB group had lower haptoglobin (Hp) levels during lactation relative to the Control group. Time spent ruminating increased after calving with MgB due to a shorter post calving rumination delay relative to the Control group. Conclusions: Prepartum MgB supplementation improved lactation performance without affecting blood energy analytes. The basis by which MgB also improved rumination activity remains to be determined, as DMI could not be assessed. As MgB lowered SCC and Hp concentrations, it is speculated that MgB may help minimize postpartum inflammatory processes.},
	keywords = {haptoglobin; dairy cows; Transition period; Milk composition; Rumination time; magnesium butyrate; blood energy analytes},
	year = {2023},
	orcid-numbers = {Edwards, Joan/0000-0003-0759-633X; Pajor, Ferenc/0000-0003-1501-0968; Jurkovich, Viktor/0000-0002-6019-3508}
}