Comparative Estimation of Serum Biochemical During Estrus, Pregnancy and Calving Periods for Dairy Cows in Thiqar Province.

Testing of blood biochemical parameters is a pre-symptomatic diagnostic appliance to determine the nutritional status of any dairy herd and other disorders such as productive and reproductive, these parameters are influenced by both intrinsic and extrinsic factors like breed, age, sex, lactation, pregnancy, health and nutrition status of the cows in dairy herd. The present study was undertaken to estimate the selected biochemical nutritional status of dairy cows in Thiqar province  in relation to reproductive status as estrus, pregnancy and lactation, this study was conducted on  40 local healthy cows in the teaching veterinary hospital of Thiqar province, they were divided into four groups  estrus, pregnant between 2-8 months, lactating (calving)  for 1 to 2 months and  heifer (dry) cows of 10 animal for each group, cows were grouped into the previous four categories on the basis of reproductive history.