Changes in the concentrations of selected toxic and essential elements in ewe milk from area with a potentially undisturbed environment

• Autorzy: Pšenková Martina , Toman Róbert , Imrich Ivan , Hluchý Svätoslav

Identyfikatory

DOI

10.5604/01.3001.0015.5608

• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to evaluate the effect of lactation on the concentration of selected essential and toxic elements in sheep milk forma area of Slovakia with potentially undisturbed environment and to find the actual contamination of selected area, in view of its environmental character. The research was conducted with 400 sheep (Tsigai breed), where the milk samples were taken during the lactation periods (early, middle and late lactation stage). Sheep were reared on the extensive pastures, reared indoors afterwards, fed with pasture ad libidum. Milk samples were collected after morning and afternoon milking. The samples of milk were analysed toxic and essential elements (Ca, Se, Mg, Zn, Fe, Cu, As, Cd, Hg, Ni, Pb) by the method of atomic absorption spectroscopy (AAS). The macro elements concentration in milk changes following the stages of lactation (p < 0.05). There was found that Ca milk concentration increased gradually in the following stages of lactation while Mg, Se, and Fe only in the last stage of lactation. With order hand, the milk concentration of Zn was the highest during summer (p < 0.05). Simultaneously the contents of essential elements (Cu) and toxic elements (As, Cd, Hg, Ni, Pb) in milk were very low, below the limit of quantification. In conclusion, ewe’s milk from potentially undisturbed environmental areas of Slovakia is safe and poses no risk to consumer health, and is suitable for use directly or in dairy processing.

Słowa kluczowe

EN

essential elements; toxic elements; sheep; milk; environmental burdes

PL

pierwiastki niezbędne; pierwiastki toksyczne; owca; mleko; obciążenia środowiskowe

• Wydawca: Państwowa Wyższa Szkoła Zawodowa w Tarnowie
• Czasopismo: Science, Technology and Innovation
• Rocznik: 2021
• Tom: Vol. 13, no. 2
• Strony: 28--34
• Opis fizyczny: Bibliogr. 35 poz., tab.

Twórcy

autor

Pšenková Martina

• Faculty of Agrobiology and Food Resources, Department of Veterinary Disciplines, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 01 Nitra, Slovak Republic

• https://orcid.org/0000-0002-4877-908X

autor

Toman Róbert

• Faculty of Agrobiology and Food Resources, Department of Veterinary Disciplines, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 01 Nitra, Slovak Republic

• https://orcid.org/0000-0002-0092-6132

autor

Imrich Ivan

• Faculty of Agrobiology and Food Resources, Department of Veterinary Disciplines, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 01 Nitra, Slovak Republic

• https://orcid.org/0000-0003-0093-7728

autor

Hluchý Svätoslav

• Faculty of Agrobiology and Food Resources, Department of Veterinary Disciplines, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 01 Nitra, Slovak Republic

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