Abstract
The objective of this study was to examine iodine and selenium contents in skeletal muscles of selected species of game animals living in regions with low iodine and selenium contents in the soil and water. Iodine content was determined in 66 samples of skeletal muscles of red deer cut out of the musculus gracilis, 32 samples and 27 samples from the same muscle of roe deer and wild boar, respectively. The shot game animals came from hunting grounds in western and southern regions of the Czech Republic and in Protected Landscape Area Šumava. In red deer muscles the average iodine content was 44.9 ± 15.2 μg I·kg-1wet weight with the range of 6.9 to 82.0 μg I·kg-1. The lower concentration in roe deer meat with the average 39.3 ± 14.1 μg I·kg-1and the range from 18.3 to 84.4μg I·kg-1may be due to differences between biotopes and food. The average iodine concentration in the musculus gracilis of wild boars was 55.9± 27.0 μg·kg-1wet weight. Selenium content was determined in 22 samples of red deer, 51 samples of roe deer and 27 samples of wild boar skeletal muscles. The average values of selenium content in the meat of red deer, roe deer and wild boars were 16.2 ± 8.4, 36.9 ± 16.6 and 27.6 ± 19.8 μg Se·kg-1wet weight, respectively. All three species of game animals are characterised by low content and high variability of selenium concentration in meat with the minimum value 3.9 µg and maximum value 83.3 μg·kg-1wet weight. The study brings new data on iodine and selenium content in the muscle of game animals in the Czech Republic.
Highlights
Analytical determination of the content of trace elements in biological materials for diagnostic purposes and for the evaluation of their reserves in the organism is applicable in humans and in animals; reference values for game animals need to be established (Wilson and Grace 2002; Allen and Ullrey 2004)
The skeletal muscle of farm and game animals living withouth supplemental sources of iodine contains 100-300 μg I·kg-1 The relatively lowest amount of iodine is presented in the meat of sheep with higher amounts in the meat of pigs, cattle and poultry (Anke 2007)
Iodine and selenium contents were tested in samples of the musculus gracilis of red deer (Cervus elaphus), roe deer (Capreolus capreolus) and wild boar (Sus scrofa) The animals were shot during hunting season in western and southern regions of the Czech Republic and in Protected Landscape Area Šumava
Summary
Analytical determination of the content of trace elements in biological materials for diagnostic purposes and for the evaluation of their reserves in the organism is applicable in humans and in animals; reference values for game animals need to be established (Wilson and Grace 2002; Allen and Ullrey 2004). The iodine (I) content in skeletal muscles is significantly determined by the animal species. The skeletal muscle of farm and game animals living withouth supplemental sources of iodine contains 100-300 μg I·kg-1 The relatively lowest amount of iodine is presented in the meat of sheep with higher amounts in the meat of pigs, cattle and poultry (Anke 2007). The aim of this study was to examine iodine and selenium contents in skeletal muscles of some species of game animals living in the Czech Republic and recommend the share of the meat of game animals as a source of both elements in human nutrition
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