Heavy metals concentrations in organs of red foxes (Vulpes vulpes linnaeus, 1758) and golden jackals (Canis aureus Linnaeus, 1758) inhabiting the “Sarnena Sredna gora” mountain in Bulgaria

Dian Georgiev1, Evgeniy Raichev2, Lilko Dospatliev3, Miroslava Ivanova4, Stanislava Peeva2, Silviya Kalcheva1, Kremena Georgieva1
1 Department of Biology and Aquaculture, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria
2 Department of Animal Production - Monogastric and Other Animals, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria
3 Department of Pharmacology, Animal Physiology and Physiological Chemistry, Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria
4 Department of Informatics and Mathematics, Faculty of Economics, Trakia University, 6000 Stara Zagora, Bulgaria

Abstract

GEOR GIEV, D., E. RAICHEV, L. DOSPAT LIEV, M. IVANOVA, S. PEEVA, S. KALCHEVA and K.GEORGIEVA , 2018. Heavy metals concentrations in organs of red foxes (Vulpes vulpes Linnaeus, 1758) and golden jackals (Canis aureus Linnaeus, 1758) inhabiting the “Sarnena Sredna gora” mountain in Bulgaria. Bulg. J. Agric.Sci., 24 (Suppl. 1): 119–124

The purpose of the study is to determine the concentrations of the heavy metals lead (Pb), cadmium (Cd), nickel (Ni), cobalt (Co), copper (Cu) and zinc (Zn) in the muscles, kidneys and liver samples taken from red foxes (n = 9) and jackals (n = 17) inhabiting the “Sarnena Sredna gora” mountain in Bulgaria and to compare the respective results. It was established that concentrations of heavy metals (mg/kg dry weight) in the muscles, kidneys and liver samples are as follows: in the red foxes’ muscles: Pb – 0.170, Cd – 0.089, Ni – 2.312, Co – 0.074, Cu – 2.565, Zn – 41.382; in the red foxes’ kidneys: Pb – 0.761, Cd – 15.522, Ni – 2.834, Co – 2.033, Cu – 8.470, Zn – 30.157; in the red foxes’ livers: Pb – 0.953, Cd – 0.628, Ni – 2.480, Co – 1.664, Cu – 15.121, Zn – 30.106; in the jackal’s muscles: Pb – 1.126, Cd – 1.742, Ni – 7.416, Co – 1.798, Cu – 6.466, Zn – 66.804; in the jackal’s kidneys: Pb – 8.419, Cd – 11.185, Ni – 7.710, Co – 5.039, Cu – 33.861, Zn – 61.576; in the jackal’s livers: Pb – 8.879, Cd – 11.569, Ni – 7.342, Co – 4.963, Cu – 56.319, Zn – 63.618. The red fox (Vulpes vulpes Linnaeus, 1758) and the jackal (Canisaureus Linnaeus, 1758), could be used as an effective biomarker for the assessment of the environmental pollution in their natural habitats.

Key words: golden jackal; red fox; heavy metals; muscles; kidneys; liver

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