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Comparative studies on bioavailability and tissue uptake of two intraruminally or intraperitoneally administered esters of alpha-tocopherol in sheep.
1991
Hidiroglou M. | Charmley E.
An experiment was conducted to compare the bioavailability of dl-alpha-tocopherol acetate (TA) with that of dl-alpha-tocopherol nicotinate (TN) when administered to sheep, as a single dose, either into the rumen or the peritoneal cavity. A total of 16 sheep were used in a factorial design, with 4 sheep/treatment at the interaction level. In addition, 5 sheep that received no supplemental alpha-tocopherol, were euthanatized at the end of the trial to provide baseline data for tissue alpha-tocopherol concentrations. Curves were fitted to the plasma alpha-tocopherol concentration values, taken over 180 hours after administration of the esters. Availability of TA was greater than TN, as evidenced by the significantly higher curve parameter values (P < 0.05) and tissue concentrations (P < 0.05). Route of administration had a marked effect on availability of TA (P < 0.001), but not of TN.
Show more [+] Less [-]Proportion of lymphocytes peripheral blood of the hydrocortisone acetate-treated chickens at post hatching
2000
Sandikci, M(Adnan Menderes Univ., Faculty of Veterinary Medicine, Aydin (Turkey))
