Ratvaj Marek, DVM, PhD
Research/art/teacher profile
Date of last update: 21.08.2026
I. Basic information
| I.1 Surname |
Ratvaj |
|---|---|
| I.2 Given name |
Marek |
| I.3 Degrees |
DVM, PhD |
| I.4 Year of birth |
1994 |
| I.5 Name of the workplace |
University of Veterinary Medicine and Pharmacy in Košice, Department of Microbiology and Immunology |
| I.6 Address of the workplace |
Komenského 73, 041 81 Košice, Slovak Republic |
| I.7 Position |
lecturer |
| I.8 E-mail address | marek.ratvaj@uvlf.sk |
| I.9 University staff register / partner university profile | https://www.portalvs.sk/regzam/detail/58535 |
| I.11 ORCID iD | 0000-0003-4508-2081 |
II. Higher education and further qualification growth
| Institution | Year | Study field and programme | |
|---|---|---|---|
| Second degree higher education | University of Veterinary Medicine and Pharmacy in Košice | 2019 | general veterinary medicine |
| Third degree higher education | University of Veterinary Medicine and Pharmacy in Košice | 2023 | immunology |
III. Current and previous employment
| Occupation | Institution | Year |
|---|---|---|
university teacher - assistant professor | University of Veterinary Medicine and Pharmacy in Košice | 2024 – to date |
researcher | University of Veterinary Medicine and Pharmacy in Košice | 2023 – 2024 |
IV. Development of pedagogical, professional, language, digital and other skills
No records yet.
V. Overview of activities within the teaching career at the university
Academic year: 2026/2027
V.1. Overview of taught profile courses
| Profile course | Study programme | Degree | Study field |
|---|---|---|---|
Clinical immunology | Microbiology and Immunology – full-time study, English language | III. | Biology |
Klinická imunológia | Microbiology and Immunology – full-time study, Slovak language | III. | Biology |
Klinická imunológia | Microbiology and Immunology – part-time study, Slovak language | III. | Biology |
V.2. Responsibility for the delivery, development and quality assurance of study programmes
No records yet.
V.3. Responsibility for the development and quality of habilitation and inauguration fields
No records yet.
V.4. Overview of supervised theses
| Bachelor | Master | Doctoral | |
|---|---|---|---|
| Currently supervised theses | 0 | 3 | 0 |
| Defended theses | 0 | 1 | 0 |
V.5. Overview of other taught courses
| Course | Study programme | Degree | Study field |
|---|---|---|---|
Immunology | Pharmacy (joint study programme with UPJŠ) – full-time study, Slovak language | I. + II. | Pharmacy |
Immunology | Pharmacy – full-time study, Slovak language | I. + II. | Pharmacy |
Immunology | Food hygiene – full-time study, Slovak language | I. + II. | Veterinary Medicine |
Veterinary immunology | Infectious diseases of animals – full-time study, English language | III. | Veterinary Medicine |
Veterinárna imunológia | Infectious diseases of animals – full-time study, Slovak language | III. | Veterinary Medicine |
Veterinary immunology | Infectious diseases of animals – part-time study, English language | III. | Veterinary Medicine |
Veterinárna imunológia | Infectious diseases of animals – part-time study, Slovak language | III. | Veterinary Medicine |
Clinical immunology | Microbiology and Immunology – part-time study, English language | III. | Biology |
Immunology | Joint Bachelor Degree in Animal Science (joint study programme with Nord University) – full-time study, English language | I. | Veterinary Medicine |
Clinical microbiology and immunology | General Veterinary Medicine – full-time study, English language | I. + II. | Veterinary Medicine |
Immunology | General Veterinary Medicine – full-time study, English language | I. + II. | Veterinary Medicine |
Immunology | General Veterinary Medicine – full-time study, English language | I. + II. | Veterinary Medicine |
Immunology | General Veterinary Medicine – full-time study, Slovak language | I. + II. | Veterinary Medicine |
Immunology | General Veterinary Medicine – full-time study, Slovak language | I. + II. | Veterinary Medicine |
Clinical microbiology and immunology | General Veterinary Medicine – full-time study, Slovak language | I. + II. | Veterinary Medicine |
VI. Overview of research/artistic/other outputs
The last six completed calendar years: 2020–2025. The current year is excluded.
VI.1. Overview of research/artistic/other outputs and citations
| Total | Over the last six years | |
|---|---|---|
| VI.1.1 Number of research/artistic/other outputs | 74 | 56 |
| VI.1.2 Number of outputs registered in Web of Science or Scopus | 11 | 7 |
| VI.1.3 Number of citations corresponding to research/artistic/other outputs | 42 | 30 |
| VI.1.4 Number of citations registered in Web of Science or Scopus | 40 | 28 |
| VI.1.5 Number of invited lectures at international and national level | — | — |
VI.2. The most significant research/artistic/other outputs
| 1. | RATVAJ, Marek - CINGEĽOVÁ MARUŠČÁKOVÁ, Ivana - POPELKA, Peter - FEČKANINOVÁ, Adriána - KOŠČOVÁ, Jana - CHOMOVÁ, Natália - MAREŠ, Jan - MALÝ, Ondřej - ŽITŇAN, Rudolf - FALDYNA, Martin - MUDROŇOVÁ, Dagmar. Feeding-regime-dependent intestinal response of rainbow trout after administration of a novel probiotic feed. In: Animals. 2023. ISSN 2076-2615, Vol. 13, no. 12 (2023), art. no. 1892, p. [1-24]. (2023: 2.7 - IF, 3 - IF 5y, 0.698 - SJR, Q1 - SJR Best Q, Q1 - JCR Best Q, 0.513 - ABDC). |
|---|---|
| 2. | FAIXOVÁ, Dominika - RATVAJ, Marek - CINGEĽOVÁ MARUŠČÁKOVÁ, Ivana - HRČKOVÁ, Gabriela - KARAFFOVÁ, Viera - FAIXOVÁ, Zita - MUDROŇOVÁ, Dagmar. Silybin showed higher cytotoxic, antiproliferative, and anti-inflammatory activities in the CaCo cancer cell line while retaining viability and proliferation in normal intestinal IPEC-1 cells. In: Life. 2023. ISSN 2075-1729, Vol. 13, no. 2 (2023), art. no. 492, p. [1-16]. (2023: 3.2 - IF, 3.1 - IF 5y, 0.713 - SJR, Q1 - SJR Best Q, Q1 - JCR Best Q, 0.655 - ABDC). |
| 3. | CINGEĽOVÁ MARUŠČÁKOVÁ, Ivana - SCHUSTEROVÁ, Petra - POPELKA, Peter - GANCARČÍKOVÁ, Soňa - CSANK, Tomáš - FEČKANINOVÁ, Adriána - RATVAJ, Marek - MUDROŇOVÁ, Dagmar. Effect of autochthonous lactobacilli on immunologically important molecules of rainbow trout after bacterial infection studied on intestinal primoculture. In: Fish & shellfish immunology. 2021. ISSN 1050-4648, Vol. 119, no. (2021), p. 379-383. (2021: 4.622 - IF, 130 - H-index, 4.799 - IF 5y, 1.091 - SJR, Q1 - SJR Best Q, Q1 - JCR Best Q, 0.583 - ABDC). |
| 4. | RATVAJ, Marek - STAROŇ, Martin - SABO, Rastislav - KŇAZOVICKÁ, Vladimíra - CINGEĽOVÁ MARUŠČÁKOVÁ, Ivana - MUDROŇOVÁ, Dagmar - MAĎAR, Marián - STAROŇOVÁ, Dana - SABOVÁ, Lucia - MAJCHRÁK, Tomáš. Fluvalinate accumulation in the beehive environment and its effects on semen quality and gene expression of drones under field conditions. In: Ecotoxicology. 2026. ISSN 0963-9292, Vol. 35, no. 4 (2026), art. no. 86, p. [1-12]. |
| 5. | CHOMOVÁ, Natália - RATVAJ, Marek - MUDROŇOVÁ, Dagmar - POPELKA, Peter - MAREŠ, Jan - PALÍKOVÁ, Miroslava - FALDYNA, Martin. Feed enriched by autochthonous probiotic bacteria and its effect on growth and immune response under different feeding regimes and immune response after Aeromonas salmonicida infection in rainbow trout (Oncorhynchus mykiss). In: Aquaculture international. 2025. ISSN 0967-6120, Vol. 33, no. 4 (2025), art. no. 267, p. [1-23]. (2025: 3.5 - IF, 82 - H-index, 3.5 - IF 5y, 0.65 - SJR, Q1 - SJR Best Q, Q2 - JCR Best Q, 0.472 - ABDC). |
VI.3. The most significant research/artistic/other outputs over the last six years
| 1. | RATVAJ, Marek - CINGEĽOVÁ MARUŠČÁKOVÁ, Ivana - POPELKA, Peter - FEČKANINOVÁ, Adriána - KOŠČOVÁ, Jana - CHOMOVÁ, Natália - MAREŠ, Jan - MALÝ, Ondřej - ŽITŇAN, Rudolf - FALDYNA, Martin - MUDROŇOVÁ, Dagmar. Feeding-regime-dependent intestinal response of rainbow trout after administration of a novel probiotic feed. In: Animals. 2023. ISSN 2076-2615, Vol. 13, no. 12 (2023), art. no. 1892, p. [1-24]. (2023: 2.7 - IF, 3 - IF 5y, 0.698 - SJR, Q1 - SJR Best Q, Q1 - JCR Best Q, 0.513 - ABDC). |
|---|---|
| 2. | FAIXOVÁ, Dominika - RATVAJ, Marek - CINGEĽOVÁ MARUŠČÁKOVÁ, Ivana - HRČKOVÁ, Gabriela - KARAFFOVÁ, Viera - FAIXOVÁ, Zita - MUDROŇOVÁ, Dagmar. Silybin showed higher cytotoxic, antiproliferative, and anti-inflammatory activities in the CaCo cancer cell line while retaining viability and proliferation in normal intestinal IPEC-1 cells. In: Life. 2023. ISSN 2075-1729, Vol. 13, no. 2 (2023), art. no. 492, p. [1-16]. (2023: 3.2 - IF, 3.1 - IF 5y, 0.713 - SJR, Q1 - SJR Best Q, Q1 - JCR Best Q, 0.655 - ABDC). |
| 3. | SABOVÁ, Lucia - CINGEĽOVÁ MARUŠČÁKOVÁ, Ivana - KOLENIČOVÁ, Simona - MUDROŇOVÁ, Dagmar - HOLEČKOVÁ, Beáta - SABO, Rastislav - SOBEKOVÁ, Anna - MAJCHRÁK, Tomáš - RATVAJ, Marek. The adverse effects of synthetic acaricide tau-fluvalinate (tech.) on winter adult honey bees. In: Environmental toxicology and pharmacology. 2022. ISSN 1382-6689, Vol. 92, no. (2022), art. no. 103861, p. [1-8]. (2022: 4.3 - IF, 97 - H-index, 4.8 - IF 5y, 0.937 - SJR, Q1 - SJR Best Q, Q1 - JCR Best Q, 0.71 - ABDC). |
| 4. | RATVAJ, Marek - STAROŇ, Martin - SABO, Rastislav - KŇAZOVICKÁ, Vladimíra - CINGEĽOVÁ MARUŠČÁKOVÁ, Ivana - MUDROŇOVÁ, Dagmar - MAĎAR, Marián - STAROŇOVÁ, Dana - SABOVÁ, Lucia - MAJCHRÁK, Tomáš. Fluvalinate accumulation in the beehive environment and its effects on semen quality and gene expression of drones under field conditions. In: Ecotoxicology. 2026. ISSN 0963-9292, Vol. 35, no. 4 (2026), art. no. 86, p. [1-12]. |
| 5. | CHOMOVÁ, Natália - RATVAJ, Marek - MUDROŇOVÁ, Dagmar - POPELKA, Peter - MAREŠ, Jan - PALÍKOVÁ, Miroslava - FALDYNA, Martin. Feed enriched by autochthonous probiotic bacteria and its effect on growth and immune response under different feeding regimes and immune response after Aeromonas salmonicida infection in rainbow trout (Oncorhynchus mykiss). In: Aquaculture international. 2025. ISSN 0967-6120, Vol. 33, no. 4 (2025), art. no. 267, p. [1-23]. (2025: 3.5 - IF, 82 - H-index, 3.5 - IF 5y, 0.65 - SJR, Q1 - SJR Best Q, Q2 - JCR Best Q, 0.472 - ABDC). |
VI.4. The most significant citations corresponding to research/artistic/other outputs
| 1. | FAIXOVÁ, Dominika - RATVAJ, Marek - CINGEĽOVÁ MARUŠČÁKOVÁ, Ivana - HRČKOVÁ, Gabriela - KARAFFOVÁ, Viera - FAIXOVÁ, Zita - MUDROŇOVÁ, Dagmar. Silybin showed higher cytotoxic, antiproliferative, and anti-inflammatory activities in the CaCo cancer cell line while retaining viability and proliferation in normal intestinal IPEC-1 cells. In: Life. 2023. ISSN 2075-1729, Vol. 13, no. 2 (2023), art. no. 492, p. [1-16]. (2023: 3.2 - IF, 3.1 - IF 5y, 0.713 - SJR, Q1 - SJR Best Q, Q1 - JCR Best Q, 0.655 - ABDC). [1] ZHANG, Xiaozhuang - LIU, Meiqi - WANG, Zhen - WANG, Panpan - KONG, Lingyang - WU, Jianhao - WU, Wei - MA, Lengleng - JIANG, Shan - REN, Weichao - DU, Likun - MA, Wei - LIU, Xiubo. A review of the botany, phytochemistry, pharmacology, synthetic biology and comprehensive utilization of Silybum marianum. In Frontiers in Pharmacology, 2024-01-01, 15, pp. Dostupné na: https://doi.org/10.3389/fphar.2024.1417655. |
|---|---|
| 2. | SABOVÁ, Lucia - CINGEĽOVÁ MARUŠČÁKOVÁ, Ivana - KOLENIČOVÁ, Simona - MUDROŇOVÁ, Dagmar - HOLEČKOVÁ, Beáta - SABO, Rastislav - SOBEKOVÁ, Anna - MAJCHRÁK, Tomáš - RATVAJ, Marek. The adverse effects of synthetic acaricide tau-fluvalinate (tech.) on winter adult honey bees. In: Environmental toxicology and pharmacology. 2022. ISSN 1382-6689, Vol. 92, no. (2022), art. no. 103861, p. [1-8]. (2022: 4.3 - IF, 97 - H-index, 4.8 - IF 5y, 0.937 - SJR, Q1 - SJR Best Q, Q1 - JCR Best Q, 0.71 - ABDC). [1] YE, Hui - JIANG, Jinhua - LEI, Yuan - FANG, Nan - LUO, Yuqin - CHENG, Youpu - LI, Yanjie - WANG, Xiangyun - HE, Hongmei - YU, Jianzhong - XU, Zhenlan - ZHANG, Changpeng. A systemic study of cyenopyrafen in strawberry cultivation system: Efficacy, residue behavior, and impact on honeybees (Apis mellifera L.). In Environmental Pollution, 2024-04-01, 346, pp. ISSN 02697491. Dostupné na: https://doi.org/10.1016/j.envpol.2024.123601. |
| 3. | SABOVÁ, Lucia - CINGEĽOVÁ MARUŠČÁKOVÁ, Ivana - KOLENIČOVÁ, Simona - MUDROŇOVÁ, Dagmar - HOLEČKOVÁ, Beáta - SABO, Rastislav - SOBEKOVÁ, Anna - MAJCHRÁK, Tomáš - RATVAJ, Marek. The adverse effects of synthetic acaricide tau-fluvalinate (tech.) on winter adult honey bees. In: Environmental toxicology and pharmacology. 2022. ISSN 1382-6689, Vol. 92, no. (2022), art. no. 103861, p. [1-8]. (2022: 4.3 - IF, 97 - H-index, 4.8 - IF 5y, 0.937 - SJR, Q1 - SJR Best Q, Q1 - JCR Best Q, 0.71 - ABDC). [1] BENITO-MURCIA, María - BOTÍAS, Cristina - MARTÍN-HERNÁNDEZ, Raquel - HIGES, Mariano - SOLER, Francisco - PÉREZ-LÓPEZ, Marcos - MÍGUEZ-SANTIYÁN, María Prado - MARTÍNEZ-MORCILLO, Salomé. Biomarker responses and lethal dietary doses of tau-fluvalinate and coumaphos in honey bees: Implications for chronic acaricide toxicity. In Environmental Toxicology and Pharmacology, 2024-01-01, 105, pp. ISSN 13826689. Dostupné na: https://doi.org/10.1016/j.etap.2023.104330. |
VI.5. Participation in conducting or leading the most important projects over the last six years
| 1. | Slovak research and development agency APVV-23-0384 – The perspective of the use of beneficial bacteria and their bioactive substances in the prevention and therapy of oral diseases in companion animals. Project period: 2024–2027. |
|---|---|
| 2. | Scientific grant agency (Ministry of education, science, research and sport of the Slovak Republic) 1/0454/22 – Study of the possibilities of using humic substances in combination with autochthonous probiotic bee lactobacilli to improve the health of honeybees and the quality of bee products. Project period: 2022–2025. |
| 3. | Slovak research and development agency APVV-19-234 – Development of probiotic preparation based on autochthonous lactobacilli for salmonids intended to improve fish health and production of quality food. Project period: 2020–2024. |
| 4. | Horizon Europe 101059812 – B-THENET (Best Practices and Innovations for a Sustainable Beekeeping). Project period: 2022–2026. |
| 5. | Scientific grant agency (Ministry of education, science, research and sport of the Slovak Republic) 1/0533/26 – Prevalencia a prevencia vírusových ochorení včely medonosnej (Apis mellifera) na Slovensku. Project period: 2026–2029. |
VII. Overview of organizational experience related to higher education and research/artistic/other activities
No records yet.
VIII. Overview of international mobilities and visits oriented on education and research/artistic/other activities in the given field of study
No records yet.
IX. Other relevant facts
No records yet.