α- and γ-tocopherol levels in Nelore steer blood plasma after a single oral treatment of soybean oil deodorizer distillate (SODD)

摘要

The paper presents a study on the effect of a treatment of steers with a single oral dose of soybean oil deodorizer distillate (SODD) on the α-and γ-tocopherol blood plasma concentrations. SODD containing 1.95/100 of α-tocopherol and 8.45/100 of γ-tocopherol in doses of 0.75, 1.50 or 2.25g/kg live weight was used on nine 2-year-old Nelore (Bos indicus) steers to promote increases in the plasma concentration of vitamin E. Tocopherol analyses were performed by HPLC on a C18 column, using a UV detector. The results showed that a single oral treatment of steers with SODD produces significant increases in plasma α- and γ-tocopherol levels.