Calcium and Phosphorus in Different Lactational and Reproductive Status of Buffaloes in Plasma and Milk

The present investigation was undertaken to assess the levels of Calcium and Phosphorus of blood and milk in different physiological status. The experimental animals were categorized into different groups according to phase of lactation (Buffaloes in Early, Mid and Late Lactation) and according to reproductive status (Prepubertal buffalo heifers, cyclic buffaloes, true anestrus buffaloes, buffaloes in early pregnancy, buffaloes in mid pregnancy and buffaloes in late pregnancy) comprising 12 animals in each group. The blood plasma and milk samples were collected from these animals and analyzed for Calcium and Phosphorus which were within normal physiological range. Statistical analysis of present data revealed that there was a significant difference (P<0.01) in the values of plasma and milk calcium among different reproductive states in buffaloes. The reverse trends in the levels of plasma and milk Ca in both non-pregnant and pregnant buffaloes of different reproductive states in the present study supports the view that the Ca drain through milk reduces the level of plasma Ca which is reflected by higher concentration of milk Ca in corresponding groups. Statistical analysis of present data revealed that there was a significant difference (P<0.01) in the values of plasma and milk P among different reproductive states in buffaloes. Milk Ca and P levels were influenced by different lactational status. Plasma P was influenced and Plasma Ca was not influenced by lactational status. Plasma Calcium and Phosphorus were significantly negatively correlated with that of milk in Buffalo.