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An Investigation of Heavy Metal Concentrations in the Sera of Cattle Grazed in Different Locations in the Kars Province of Türkiye

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Abstract

The aim of this study was to investigate the effects of exposure of cattle to low levels of environmental pollution on trace metal metabolism. The assessment of heavy metal concentrations in blood samples is essential to evaluate the potential effects of pollutants on cattle production and to measure the uptake of pollutants by animals. For this purpose, cattle raised in villages at varying distances to the center of the Kars province were sampled for blood, and heavy metal concentrations were measured in the extracted sera. In total 150 blood samples were collected from 4-to 5-year-old cattle from 15 regions. Sera were extracted from the blood samples from the selected foci and analyzed with an inductively coupled plasma-optical emission spectrometry (ICP-OES) device for essential (Co, Cr, Cu, Fe, Mn, Ni and Zn, Se, V) and non-essential (Pb, Cd and Hg, As, Al, Sn) heavy metals. Heavy metals were detected in the serum samples in the following order: Sn > Fe > Al > Zn > Cu > Pb > Cr > As > V > Ni > Mn > Hg. A confidence interval of 95% was used to evaluate all tests. Differences between the villages were insignificant for the Cu, Pb, Cd, Hg, Se, Al, Co concentrations (p > 0.05), whereas differences between the villages were significant for the Fe, As, Ni, Mn (p < 0.05), Zn, Cr (p < 0.01), V and Sn (p < 0.001) concentrations. The results of this study show that heavy metals detected in bovine sera from the sampling area do not exceed the maximum permissible limits, suggesting limited exposure to heavy metals and no associated health risk to animals in the region.

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Funding

The authors declare they have no financial interests. No funding was received for conducting this study.

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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by AKT, YA, SK, HE. The first draft of the manuscript was written by AKT and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Ayse Kanici Tarhane.

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The authors declare that they have no conflict of interest.

Ethical Approval

The study protocol was approved by the Ethics Board for Animal Experiments of Kafkas University (Approval number: 2022/212).

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Kanici Tarhane, A., Aluc, Y., Kiziltepe, S. et al. An Investigation of Heavy Metal Concentrations in the Sera of Cattle Grazed in Different Locations in the Kars Province of Türkiye. Bull Environ Contam Toxicol 112, 1 (2024). https://doi.org/10.1007/s00128-023-03821-6

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  • DOI: https://doi.org/10.1007/s00128-023-03821-6

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