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The study was aimed to investigate magnesium level in soil samples, forages grown in that soil and plasma of grazers (goat and sheep) taken from District Bhakkar, Mianwali and Sargodha. The present study was carried out during 2016. The findings unveiled that the mean magnesium concentrations in soil of District Sargodha, Mianwali and Bhakhar varied from 40.49 to 50.14, 48.83 to 54.53 and 54 to 59.68 magnesium/kg sequentially. The highest Magnesium content was found in Bhakkar soil. The mean concentrations of Magnesium in forage samples were found between 32.75-39.13, 40.24-42.24 and 49.55-50.35 mg/kg for Sargodha, Mianwali and Bhakhar, independently. The average Magnesium contents in the blood plasma of goats fed on these forages were between 31.4-34.79 magnesium/L in Sargodha, 29.93-33.19 magnesium/L in Mianwali, and 20.76-30.85 mg/L from Bhakkar. In sheep blood samples, Magnesium levels in Sargodha, Mianwali and Bhakhar extended from 25.81 to 32.727, 25.14 to 31.43 and 15.93 to 17.76 mg/L, respectively, indicating that there is no need for magnesium supplementation for small grazers of this area.
Keywords: Blood; Forage; Goat; Magnesium; Metals; Sheep