Estimation of biochemical parameters in clinical hypocalcaemia in Iraqi cows


The study amid to evaluate the status of calcium and changes in some biochemical parameters at parturition in thirty local breed cows which were divided randomly into three groups (I, II, and III). The first and second group showed increased calcium ions level and alkaline phosphatase (ALP), parathyroid hormone (PTH) and calcitonin (CT) at calving and were significant (p< 0.05) ,while Hydroxyproline (HYP), PTH, CT, 1,25-dihydroxyvitamin D (DHVD) in the third group were decreased during parturition. The results of cows fed rich diet had greater calcium concentrations at parturition than the lowest concentration of serum Ca in cows fed on poor diet during the prenatal period. However, there was no significant difference in serum 1,25-(DHVD) and hydroxyproline concentration of the cows among three groups. This study was to confirm that hypocalcaemia is very prevalent at calving period in Iraqi dairy farms and major risk factors may reduce the ability of the cows to maintain Ca homeostasis.