An evaluation of the effects of α-tocopherol and ascorbic acid in bovine respiratory disease complex occurring in feedlot calves after transport

Analysis of Hp concentration in the sera showed no differences between the two groups of calves tested, but revealed differences (p ≤ 0.05) in absorbance values compared to the control on particular days of experiment. SAA concentration in the sera of calves from the group that received vitamin E was similar to that of the control on days 14 and 21 of the experiment. On days 3 and 7 of the experiment a significant (p ≤ 0.05) decrease was observed in SAA in the sera obtained from calves from the group given vitamin E compared to the control and the group given vitamin C.