Effect of Dietary Humic Preparations on the Content of Trace Elements in Hens' Eggs
- 1 Department of Animal Hygiene and Environment, Wroclaw University of Environmental and Life Sciences, Chelmonski st. 38 C, 51-630 Wroclaw, Poland
- 2 Institute of Inorganic Technology and Mineral Fertilizers; Wroclaw University of Technology, Smoluchowski st. 25, 50-372 Wroclaw, Poland
Abstract
Mineral-humic preparations Humokarbowit (HKW) and Humobentofet (HBF) were used in feeding of reproductive laying hens Lohmann Brown. The effect of these preparations on microelement composition of eggs was investigated. The content of microelements in hens diet, egg albumen and eggshell was determined by ICP-MS technique and relative bioaccumulation coefficient (RBC) was evaluated. The humic preparations significantly increased selenium and decreased molybdenum concentration in egg albumen. Increase of selenium and iron content in egg yolk and increase of iron concentration in eggshells was observed. The preparations did not influence the content of such elements as Cr, Co, Cu, I, Mn, Zn. The highest levels of RBC were found for selenium and iodine and the lowest for manganese.
DOI: https://doi.org/10.3844/ajabssp.2007.234.240
Copyright: © 2007 Zbigniew Dobrzanski, Henryk Gorecki, Katarzyna Chojnacka, Helena Górecka and Marzena Synowiec. This is an open access article distributed under the terms of the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Keywords
- humic preparation
- hens
- eggs
- chemical composition