Effects of the overdosage of mineral enriched yeast and gluconate as zinc and copper source on the Zn, Cu and Fe content in rat
Journal Title: Journal of Analytical Bio-Science - Year 2011, Vol 34, Issue 3
Abstract
Mineral enriched yeast or gluconate was used as zinc and copper source in test diets for rat. The quantity of zinc and copper addition assumed a reasonable standard (Zn: 30μg, Cu: 6μg/g diet) or high level (Zn: 100μg, Cu: 20μg/g diet). After 29 days feeding trial, a difference was not produced to growth, a blood property, the organ weight ratio in each group. Regardless of the difference of the zinc source, the difference was not accepted in the high-level zinc dosage ward by a stockpile of zinc to an organ either. And the copper absorption inhibition was not caused either. As for iron, slight absorption inhibition was accepted. On the other hand, when copper was given in a high level, quantity of absorption increased regardless of a source of supply, and an accumulated tendency was accepted by thighbone and kidney. Attention is necessary for copper overdosage. From the above-mentioned result, it was found that the outbreak of the adverse effects did not have a difference with mineral enriched yeast and gluconate.
Authors and Affiliations
Kenji Kasuya
Keywords
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