Abstract
The main purpose of the present study was to find out trace metal contents in animal blood, forages and soil and the effect of seasonal changes on the trace metal contents. The trace metals in forages, soil and blood investigated in the present study were lead (Pb), iron (Fe) and zinc (Zn). A statistical analysis by SPSS and one way ANOVA were subjected for different attributes of data, descriptive analysis, bio-concentration factor and correlation worked out. The mean Zn, Fe and Pb levels at various sampling seasons ranged from 5.04 to 5.42, 23.29 to 25.17 and 15.37 to 16.94mg/kg, respectively. The mean Zn, Fe and Ph levels at various sampling seasons differed from 16.27 to 14.71, 34.73 to 35.85 and5.98 to 6.24 mg/kg, respectively. In terms of blood plasma samples, the maximum Zn, Fe and Ph concentrations were observed in lactating buffaloes during the winter season, dry buffaloes during the winter season and young buffaloes during the summer season, respectively. The minimum Zn, Fe and Ph contents were noticed in lactating buffaloes in the summer season, young buffaloes in the autumn season and lactating buffaloes in the autumn season, respectively. The highest bio-concentration factor value from soil to forage was detennined for Zn while the highest bio-concentration factor value from forage to blood plasma of young buffaloes was detected for Pb.