Effect of short term over-supplementation of ascorbic acid on hematology, serum biochemistry, and growth performance of neonatal dairy calves.

The objectives of the present study were to investigate effects of over-supplementation of ascorbic acid on hematology, serum biochemistry and weight gain in Holstein dairy calves. A total of 90 Holstein dairy calves were randomly assigned to receive one of two treatments. Ascorbic acid was administered orally to treatment group (n=44) as follows: three times 1000 mg a day during first week; two times 1000 mg a day during second week; one time 1000 mg a day during third week.