Effect of Administration of Trace Elements on Those Concentration in the Body of Dairy Cattle

Abstract

The objective of this study was to clarify the effect of the administration of trace elements on those concentration in the body of Holstein cattle. Except for Se, feed intake and daily milk yields of treated cows were not affected by the administration of trace elements in the diet. There was a decrease in feed intake, rapid salivation, and swelling of the cervix and sore feet by the administration of 6.5 ppm Se. Most of trace elements administered was excreted in the feces and slightly secreted in the milk. Trace elements accumulation, distribution, and excretion of cows were different from the administration of each elements.