The normal values are reported of the concentration of vitamin A (retinol) in the plasma of 44 male and female adult camels (Camelus dromedarius) in the United Arab Emirates. The concentrations of the vitamin in the plasma of eight camels of both sexes afflicted with aflatoxicosis were also determined. The mean concentration (+/-SD) of the vitamin in healthy camels was 460.1 +/- 49.3 ng/L. Sex had no significant effect on the concentration of the vitamin. Camels with aflatoxicosis had a mean concentration of retinol in the plasma of 243.4 +/- 32.3 ng/L. The concentrations of aflatoxins in the liver and ruminal contents of these animals were 18.2 +/- 1.3 and 243.4 microg/kg, respectively.
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