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Serum C-terminal parathyroid hormone (C-PTH) levels were determined by using RIA technique in healthy and drought affected adult dromedaries of either sex of arid region along with calcium and phosphorus levels. The mean values (ng/ml) of C-PTH in healthy males, non-pregnant females and pregnant females were 1.81 +/- 0.03, 1.90 +/- 0.05, and 2.10 +/- 0.02, respectively which were significantly (p <= 0.05) lower than that in the respective subgroups of drought affected animals. Overall mean values of serum calcium and phosphorus were non-significantly (p > 0.05) and significantly (p <= 0.05) lower, respectively, in drought affected group than in healthy group.