Contents of zinc, copper, chromium and manganese in silver foxes according to their age and mineral supplementation

• Autorzy: Cybulski W. , Jarosz L. , Chalabis-Mazurek A. , Jakubczak A. , Kostro K. , Kursa K.
• Języki publikacji: EN

Abstrakty

EN

Serum, livers and kidneys of 30 silver foxes from one breeding farm were subjected to analysis of the four microelements contents. The samples derived from 3 groups of animals (An=10) selected according to age and developed reproduction disorders. Cu, Cr and Mn were determined by a graphite furnace AAS whereas Zn by the flame AAS methods. Serum levels of Zn were the least variable (×(n=30)=4.72 ± 2.313 μg ·mL-1) and the mean of Cu content was 0.26 ± 0.244, of Cr was 0.029 ± 0.032 and of Mn was 0.074 ± 0.085 μg ·mL-1. The livers and kidneys contained respectively: 159.9 ± 23.66 and 74.25 ± 14.44 μg g⁻¹ of Zn; 34.03 ± 12.43 and 13.66 ± 1.67 μg g⁻¹ of Cu as well as 6.28 ± 0.97 and 2.60 ± 0.33 μg g⁻¹ of Mn. The most variable was Cr level achieving 1.00 ± 1.06 and 1.43 ± 2.64 μg g⁻¹ (all results per gram of wet weights). The differences between means and medians within the age groups did not exceed 41%, however chromium was an exception, its values differed more than 2 times. High zinc level found both in the serum and the organs resulted from its concentration in feedstuff being 1040,5 μg g⁻¹, exceeding the recommended level for farming foxes. Over-supplementation of dietary Zn might suggest connection between subtoxic action of Zn or its interaction with Cu or Cr followed by subsequent effect on reproduction events. Whether nature of Zn effects derived from direct target action or from Zn – Cu or Zn – Cr interactions have to be solved experimentally. Some foxes contained copper and chromium in livers and kidneys at levels exceeded significantly those concidered as physiological ranges for mammals, whereas manganese was within these limits. Thus, manganese was considered to keep homeostasis status of this element in the examined foxes.

Słowa kluczowe

EN

fox; silver fox; age; animal age; diet; mineral supplementation; serum; liver; kidney; reproduction; zinc content; copper content; chromium content; manganese content; microelement content

• Wydawca: -
• Czasopismo: Polish Journal of Veterinary Sciences
• Rocznik: 2009
• Tom: 12
• Numer: 3
• Opis fizyczny: p.339-345,ref.

Twórcy

autor

Cybulski W.

• Department of Veterinary Pharmacy, National Veterinary Research Institute, 24-100 Pulawy, Poland

autor

Jarosz L.

• Department of Epizootiology and Clinic Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-033 Lublin, Poland,

autor

Chalabis-Mazurek A.

• Department of Toxicology and Environmental Protection, University of Life Sciences in Lublin, 20-033 Lublin, Poland

autor

Jakubczak A.

• Department of Biological Base of Animal Production, Faculty of Biology and Animal Breeding, University of Life Sciences in Lublin, 20-033 Lublin, Poland

autor

Kostro K.

• Department of Epizootiology and Clinic Infectious Diseases, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-033 Lublin, Poland

autor

Kursa K.

• Department of Toxicology and Environmental Protection, University of Life Sciences in Lublin, 20-033 Lublin, Poland