It was reported a higher tissue deposition of Se (compared to a control diet) when high levels of dietary copper were supplemented concomitantly with toxic levels of selenium. By using dietary levels of these to mineral, are the same results expected?
Thank you very much
Dear Danyel,
With the information that you provide, I am not sure if I understand the results and the experimental design you are referring to. If you could explain them depeer or send me the paper, I could give you my opinion.
In fact, I do not know the animal species you are talking about, and this information is very important.
Regards,
Alfredo.
Hi Alfredo J. Escribano.
I got some few article referring to a higher deposition of Se in body tissues when copper is supplemented concomitantly. Here are the 2 most interesting:
- Effect of Dietary Copper on Selenium Toxicity in Fischer 344 Rats (Biological Trace Element Research, v.77, p,241-249, 2000);
- Modification of a Selenium Toxicity in Chicks by Dietary Silver and Copper (Journal of Nutrition, v.105, p.769-775, 1975).
I have also found some papers in sheep and goats showing results at nutritional levels of both selenium and copper, but nothing in pigs, that is the specie that I work with.
Do you have any information on pigs?
Thank you very much
Dear Danyel
There is a three way interaction between Se, S and Cu. The following article will hopefully assist you
J. B. J. VAN RYSSEN a1 p1, P. S. M. VAN MALSEN a1 and F. HARTMANN a1
a1 Department of Animal Science and Poultry Science, University of Natal, Private Bag X01, Scottsville, 3209 Pietermaritzburg, Republic of South Africa
Roelf
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