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Journal of Nutrition Vol. 111 No. 11 November 1981, pp. 1996-1999
Copyright © 1981 by American Society for Nutrition
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Zinc Absorption in Cattle with a Dietary Picolinic Acid Supplement

Thøger Flagstad

The Royal Veterinary and Agricultural University, Institute of Internal Medicine, DK-1870 Copenhagen V, Denmark

The effect of picolinic acid and hydroxyquinolines on intestinal zinc absorption of cattle was studied. In contrast to reports of the absorption in rats and in man, picolinic acid did not enhance zinc absorption in cattle. In two calves suffering from Adema disease, the bovine parallel to Acrodermatitis enteropathica, hydroxyquinoline supplementation resulted in an increase in intestinal 65Zn absorption, while picolinic acid had no such effect. The results may indicate a difference in the zinc absorption mechanism between cattle and other species.

KEY WORDS: • zinc absorption • picolinic acid • cattle

Manuscript received 27 March 1981.




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