Comparison of bacteria and yeast probiotics and their synergistic on blood parameters, feed intake and weight of female sukling Holstein calves

16 newborn calves were randomly assigned to four experimental groups (4 calves for each group). T₁:control group, T₂:1 gr day-1 bacterial probiotic, T₃:2 gr day-1 yeast probiotic and T₄:1 gr day-1bacterial gr day-1yeast probiotic was added in their daily milk Consumption until 70 days of age.Blood samples were obtained from jugular vein to determination of blood parameters such as Glucose (GLU), Total protein (TP), Triglyceride (TG), Cholesterol (Cho), Calcium (Ca), Phosphorus (P), and Beta- Hydroxyl Butyric Acid (βHBA (, at three times (present at birth,40 and 70 days. Amount of cholesterol in Treat 3 at the end of period was lower than other treatments and the amounts of βHBA and Ca in Treat 3,4 at the middle of period were higher than other treatments (p