| http://www.w3.org/ns/prov#value | - A recent survey on the nutrition of grazing ruminants in tropical regions has indicated that copper deficiency is a serious problem in many tropical countries: ARGENTINA BOLIVIA BRAZIL COLOMBIA COSTA RICA ETHIOPIA EL SALVADOR ECUADOR DOMINICAN REPUBLIC CUBA GUATEMALA GUYANA HAITI HONDURAS INDIA MEXICO MALAWI MALAYSIA KENYA INDONESIA PANAMA PERU PHILIPPINES SAUDI ARABIA SENEGAL TANZANIA SWAZILAND S
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