H.E. Mohamed  , 
    Factors Affecting the Plasma Contents of Retinol and Alpha Tocopherol in Camels <I>(Camelus dromedariu</I>s),
    Journal of Animal and Veterinary Advances,
    Volume 5,Issue 4,
    2006,
    Pages 301-303,
    ISSN 1680-5593,
    javaa.2006.301.303,
    (https://makhillpublications.co/view-article.php?doi=javaa.2006.301.303)
    Abstract: The purpose of the study was to investigate normal baseline levels of retinal and alpha tocopherol in clinically healthy camels (<I>Camelus dromedarius</I>), kept under natural grazing conditions. A total of 275 Arabi camels of both sexes were sampled over a one-year field survey at Butana area, central Sudan. The overall mean concentration of retinal was 479.5±69.4 ng/L, whereas alpha tocopherol was 2.1±0.4 mg/L. Sex showed insignificant effect of vitamin levels. However, season exerted a significant effect; the rainy season (July-October) showed the highest level 493.5±80.3 ng/L and 2.3±0.5 mg/L for retinal and alpha tocopherol, respectively. The corresponding figures for the dry season (January-May) were 400.3±70.0 ng/L and 1.4±0.4 mg/L, respectively. Age influences vitamin levels with adult having higher status.
    Keywords: Alpha tocopherol;camel;retinol