J. Anim Sci.
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J. Anim Sci. 1980. 50:479-483.
© 1980 American Society of Animal Science
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Histidine, Phenylalanine-tyrosine and Tryptophan Requirements for Growth of the Young Kitten

P. A. Anderson1, D. H. Baker, P. A. Sherry and J. E. Corbin

University of Illinois, Urbana 618012

Abstract

Growth assays were conducted to estimate the minimal dietary requirement levels of histidine, tryptophan, phenylalanine and tyrosine for the young kitten. Dietary concentrations of histidine and tryptophan of .30 and .15%, respectively, were found to support optimal kitten performance. A preliminary study of the total aromatic amino acid (TAAA) requirement indicated that no more than 1.20% TAAA (.60% phenylalanine + .60% tyrosine) is required by the kitten. Subsequent experiments revealed no decrease in growth rate when TAAA were reduced to 1.00% of the diet. At this level of TAAA, tyrosine could supply 50% of the requirement for TAAA

Footnotes

1 Present address: Dept. of Basic Med. Sci., Univ. of Illinois, Urbana 61801.

2 Dept. of Anim. Sci






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Copyright © 1980 by the American Society of Animal Science.