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Journal of Nutrition Vol. 102 No. 12 December 1972, pp. 1667-1672
Copyright © 1972 by American Society for Nutrition
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Relationship of Biotin and Ascorbic Acid in the Turkey Poult1, 2,

Larry G. Arends3 and Eldon W. Kienholz

Colorado State University, Department of Avian Science, Fort Collins, Colorado 80521

Biotin deficiency alters the skeletal growth of turkeys and depresses ascorbic acid synthesis in the rat. Experiments were conducted to determine if biotin deficiency in the turkey resulted in depressed ascorbic acid synthesis, or whether ascorbic acid supplementation would retard or prevent biotin deficiency lesions from developing. Feeding the unsupplemented biotindeficient diet did not significantly reduce ascorbic acid content of blood plasma, liver, kidney or adrenal tissue of 4-week old poults. Supplementing the biotin-deficient diet with 100 or 1,000 ppm of ascorbic acid had no sparing effect on biotin as determined by growth or appearance of biotin deficiency lesions, but did significantly increase the tissue ascorbic acid levels. It was concluded that the gross and microscopic lesions observed in the biotin-deficient poults were not caused by a reduction in ascorbic acid synthesis or availability. Biotin deficiency does not appear to be related to ascorbic acid metabolism in poults.

KEY WORDS: • biotin • ascorbic acid • turkey poults

1 Published with approval of the director of the Colorado State University Experiment Station as scientific series paper no. 1713.

2 This research was supported in part by grants from Hoffmann-LaRoche, Inc., Nutley, New Jersey and the National Turkey Federation, Mount Morris, Illinois.

3 Present address: Department of Poultry Science, North Carolina State University, P.O. Box 5307, Raleigh, North Carolina 27607.

Manuscript received 18 February 1972.




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