Influence of Different Forms of Vitamin A, Thyroxine, and Thiouracil on Carotenoid Utilization by Chicks∗

@article{Dua1968InfluenceOD,
  title={Influence of Different Forms of Vitamin A, Thyroxine, and Thiouracil on Carotenoid Utilization by Chicks∗},
  author={P. N. Dua and V L Dubal and Elbert J. Day and J. E. C. Hill},
  journal={Proceedings of the Society for Experimental Biology and Medicine},
  year={1968},
  volume={128},
  pages={262 - 265}
}
  • P. DuaV. L. Dubal J. Hill
  • Published 1 May 1968
  • Biology, Medicine
  • Proceedings of the Society for Experimental Biology and Medicine
Summary Forms of vitamin A having alcoholic, aldehydic, or acidic terminal functional groups, when fed at 100,000 IU of vitamin A/kg of diet, depressed carotenoid utilization. The retinoic acid caused the decrease in the carotenoid content of serum, liver, and skin to a greater extent than other forms of vitamin A. In an experiment designed to study the effect of vitamin A in combination with thyroxine or thiouracil on the utilization of carotenoids, a similarity of their effects between high… 
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Use of Carotenoids

Carotene is the most important vitamin A precursor in human nutrition and in animal rations, since its presence in food and feed ingredients, particularly of leafy origin, greatly exceeds in concentration the other vitamin A active compounds.