Trace Element and Electrolyte Concentrations in Different Physiological States of Sahiwal Cattle

The study was conducted on seven healthy Sahiwal cattle at their different physiological states (calves, •1 year; pregnant in first trimester; primiparous lactating and dry, not pregnant). The blood samples were collected from Jugular vein in heparinized test tubes. Plasma was separated and used for analysis. Non significant differences were observed in blood plasma Zn2+, Fe2+ and Na+ concentrations in calves, pregnant and milking animals. The present study also reports a non significant difference in Cu2+ concentration between the four physiological states. Significant differences in Ca2+ concentration was observed in all the animals at different physiological states. No significant differences were observed in blood plasma Mg2+ concentration between calves and milking cows. Potassium (K+) concentration was not significantly different between the pregnant and milking cows but significantly different among the calves and the dry cows.