Variations in Some Plasma Macro and Micro Elements Concentrations During Different Ages of Iranian Sarabi Calves

摘要

Elements have key roles in regulating of metabolism in various tissues of domestic animals; therefore,the determination of these elements concentrations is very important in evaluation of their deficiency indifferent ages of animals. The aim of this study was to determine the concentrations of calcium, magnesium,zinc and copper during different ages and of different sexes in plasma of Sarabi calves. Blood samples werecollected from the jugular vein of 45 clinically healthy animals, aged 1-14 days, 1-2 and 3-6 months in autumn.The plasma was analyzed to determine calcium, magnesium, zinc and copper concentrations byspectrophotometry method using commercial kits. Results indicated that there was no significant differenceamong age groups concerning the all studied parameters. Additionally, there was no a significant differenceamong two sexes concerning the aforementioned parameters, except for calcium (P < 0.05) and theconcentrations of calcium, magnesium, zinc and copper were higher in female than male animals. In conclusion,the concentrations of plasma calcium, magnesium, zinc and copper were not significantly altered byphysiological and metabolically changes during the first six months of age in Sarabi calves; but, it seems thatthe concentrations of all studied parameters, especially calcium, were affected by similar changes related to sexduring the same age interval.