Acta Vet. Brno 2026, 95: 39-44

https://doi.org/10.2754/avb202695010039

Mercury as a contaminant in small ruminants

Kamila Novotná Kružíková1, Veronika Vlasáková2, Danka Haruštiaková3, Zdeňka Svobodová1, Petr Chloupek1, Martin Svoboda4

1University of Veterinary Sciences Brno, Faculty of Veterinary Hygiene and Ecology, Department of Animal Protection and Welfare and Veterinary Public Health, Czech Republic
2State Veterinary Administration, Czech Republic
3Masaryk University, Faculty of Science, RECETOX, Brno, Czech Republic
4University of Veterinary Sciences Brno, Faculty of Veterinary Medicine, Ruminant and Swine Clinic, Czech Republic

Received October 16, 2025
Accepted March 2, 2026

References

1. Akoto O, Bortey-Sam N, Nakayama SMM, Ikenaka Y, Baidoo E, Yohannes YB, Mizukawa H, Ishizuka M 2014: Distribution of heavy metals in organs of sheep and goat reared in Obuasi: A gold mining town in Ghana. Int J Environ Sci Toxic 2: 81-89
2. Bilandžič N, Dokič M, Sedak M 2010: Survey of arsenic, cadmium, copper, mercury and lead in kidney of cattle, horse, sheep and pigs from rural areas in Croatia. Food Addit Contam B 3: 172-177 <https://doi.org/10.1080/19440049.2010.503194>
3. Council of the European Union 1996: Council Directive 96/23/EC of 29 April 1996 on measures to monitor certain substances and residues thereof in live animals and animal products and repealing Directives 85/358/EEC and 86/469/EEC and Decisions 89/187/EEC and 91/664/EEC. Off J EU L125: 10-32
4. Darwish WS, Gad TM, Imam TS 2017: Lead, cadmium and mercury residues in the edible offal of sheep and goat with a special reference to their public health implications. Int J Adv Res 5: 189-199 <https://doi.org/10.21474/IJAR01/3795>
5. Demirbaş X, Erduran N 2017: Concentration of selected heavy metals in brown hare (Lepus europaeus) and wild boar (Sus scrofa) from central Turkey. Balkan J Wild Res 4: 26-33
6. European Food and Safety Authority 2012: Scientific opinion on the risk for public health related to the presence of mercury and methylmercury in food. EFSA Journal 10: 2985
7. European Commission 2022: Commission delegated regulation (EU) 2022/931 of 23 March 2022 supplementing Regulation (EU) 2017/625 of the European Parliament and of the Council by laying down rules for the performance of official controls as regards contaminants in food. Off J EU L162: 7-12
8. European Commission 2022: Commission implementing regulation (EU) 2022/932 of 9 June 2022 on uniform practical arrangements for the performance of official controls as regards contaminants in food, on specific additional content of multi-annual national control plans and specific additional arrangements for their preparation. Off J EU L162: 13-22
9. European Commission 2023: Commission Regulation (EU) 2023/915 of 25 April 2023 on maximum levels for certain contaminants in food and repealing Regulation (EC) No 1881/2006. Off J EU L119: 103-157
10. European Parliament and the Council of the European Union 2017: Regulation (EU) 2017/625 of the European Parliament and of the Council of 15 March 2017 on official controls and other official activities performed to ensure the application of food and feed law, rules on animal health and welfare, plant health and plant protection products, amending Regulations (EC) No 999/2001, (EC) No 396/2005, (EC) No 1069/2009, (EC) No 1107/2009, (EU) No 1151/2012, (EU) No 652/2014, (EU) 2016/429 and (EU) 2016/2031 of the European Parliament and of the Council, Council Regulations (EC) No 1/2005 and (EC) No 1099/2009 and Council Directives 98/58/EC, 1999/74/EC, 2007/43/EC, 2008/119/EC and 2008/120/EC, and repealing Regulations (EC) No 854/2004 and (EC) No 882/2004 of the European Parliament and of the Council, Council Directives 89/608/EEC, 89/662/EEC, 90/425/EEC, 91/496/EEC, 96/23/EC, 96/93/EC and 97/78/ EC and Council Decision 92/438/EEC (Official Controls Regulation). Off J EU L95: 1-142
11. European Parliament and the Council of the European Union 2005: Regulation (EC) No 396/2005 of the European parliament and of the Council of 23 February 2005 on maximum residue levels of pesticide in or on food and feed of plant and animal origin and amending Council Directive 91/414/EEC. Off J EU L70: 1-4021
12. Hu H, Lin H, Zheng W, Tomanicek SJ, Johs A, Feng X, Eliasm DA Liang L, Gu B 2013: Oxidation and methylation of dissolved elemental mercury by anaerobic bacteria. Nat Geosci 6: 751-754 <https://doi.org/10.1038/ngeo1894>
13. Kenšová R, Kružíková K, Svobodová Z 2012: Mercury speciation and safety of fish from important fishing location in the Czech Republic. Czech J Food Sci 30: 276-284 <https://doi.org/10.17221/239/2011-CJFS>
14. MacLachlan DJ, Budd K, Connolly J, Derric J, Penrose L, Tobin T 2016: Arsenic, cadmium, cobalt, copper, lead, mercury, molybdenum, selenium and zinc concentrations in liver, kidney and muscle in Australian sheep. J Food Compos Anal 50: 97-107 <https://doi.org/10.1016/j.jfca.2016.05.015>
15. Maršálek P, Svobodová Z, Randák T 2006: Total mercury and methylmercury contamination in fish from sites along the Elbe River. Acta Vet Brno 75: 579-585 <https://doi.org/10.2754/avb200675040579>
16. Mustaq A, Sajjad A, Ismail T, Ali O 2024: Heavy metals accumulation in the meat, kidney and liver of cattle, broilers and goats sold in Quetta, northwestern city of Balochistan, Pakistan. Brit Poultry Sci 65: 740-750 <https://doi.org/10.1080/00071668.2024.2377743>
17. Nawrocka A, Durkalec M, Szkoda J, Filipek A, Kmiecik M, Żmudzki J, Posyniak A 2020: Total mercury levels in the muscle and liver of livestock and game animals in Poland 2009-2018. Chemosphere 258: 127311 <https://doi.org/10.1016/j.chemosphere.2020.127311>
18. Novotná Kružíková K, Široká Z, Jurajda P, Harustiakova D, Smolikova Z, Kubicek M Svobodová Z 2023: Total mercury content in selected tissues of common carp (Cyprinus carpio) pond in the Czech Republic. Acta Vet Brno 92: 419-425 <https://doi.org/10.2754/avb202392040419>
19. Novotna Kruzikova K, Siroka Z, Jurajda P, Harustiakova D, Smolikova, Z, Kubicek M, Svobodová Z 2022: Mercury content in fish from drinking-water reservoirs in the Morava River Basin (Czech Republic). Environ Sci Pollut Res 29: 17394-17405 <https://doi.org/10.1007/s11356-021-16763-5>
20. Pathak SK, Bhowmik MK 1998: The chronic toxicity of inorganic mercury in goats: clinical signs, toxicopathological changes and residual concentrations. Vet Res Commun 22: 131-138 <https://doi.org/10.1023/A:1006031630434>
21. Rudy M 2009: The analysis of correlations between the age and the level of bioaccumulation of heavy metals in tissues and the chemical composition of sheep meat from the region in SE Poland. Food Chem Toxicol 47: 1117-1122 <https://doi.org/10.1016/j.fct.2009.01.035>
22. Simpson VR, Stuart NC, Munro R, Hunt A, Livesey CT 1997: Poisoning of dairy heifers by mercurous chloride. Vet Rec 140: 549-552 <https://doi.org/10.1136/vr.140.21.549>
23. Stoev S, Lazarova S 1998: Morphological investigations in experimental cases of mercuric poisoning in sheep. Vet Arhiv 68: 163-171
24. Svoboda M, Vlasakova V, Harustiakova D, Illek J, Staffa A, Vasek J, Novotna Kruzikova K, Cahova J, Svobodova Z 2025: Multi-year study monitoring the mercury content in the tissues of cattle sampled in the Czech Republic between 2014 and 2023. Vet Med Czech 70: 307-312 <https://doi.org/10.17221/34/2025-VETMED>
25. Svoboda M, Bureš J, Drápal J, Geboliszová K, Haruštiaková D, Nepejchalová L, Skočovská, M, Svobodová Z, 2021: A survey of mercury content in pig tissues carried out in the Czech Republic during years 2015–2019. Acta Vet Brno 90: 287-293 <https://doi.org/10.2754/avb202190030287>
26. World Health Organization 2003: Elemental mercury and inorganic mercury compounds: Human health. Geneva: World Health Organization. Available at: https://iris.who.int/bitstream/handle/10665/42607/9241530502.pdf
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  • ISSN 0001-7213 (printed)
  • ISSN 1801-7576 (electronic)

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