J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J. Anim Sci. 1972. 34:582-586.
© 1972 American Society of Animal Science
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Baker, D. H.
Right arrow Articles by Kleiss, A. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Baker, D. H.
Right arrow Articles by Kleiss, A. J.

Nutritional Evidence Concerning Formation of Glycine from Threonine in the Chick

D. H. Baker, Terrill M. Hill1 and Alice J. Kleiss

University of Illinois at Urbana-Champaign,2 Urbana, Illinois 61801

Abstract

Threonine degradation in the body is generally considered to occur via the threonine dehydrase pathway which involves anaerobic deamination of threonine to a-ketobutyrate and ammonia. However, Russian workers (Braunstein and Vilenkina, 1949) observed formation of glycine and acetaldehyde from threonine in preparations of livers and kidneys from several species including the pigeon. The enzyme catalyzing this reaction has been designated glycinogenase (Braunstein and Vilenkina, 1949) and hydroxy-amino acid aldolase (Lin and Greenberg, 1954). Meltzer and Sprinson (1952) presented evidence that threonine cleavage to glycine and acetaldehyde may account for up to one-third of the threonine catabolized in the rat.

Recent work at the Illinois Station has involved study of glycine metabolism in the chick, including an evaluation of the efficacy of various glycine precursors (Baker and Sugahara, 1970; Baker, Sugahara and Scott, 1968; Baker et al., 1970). Since the growing chick requires a dietary source of glycine at all stages of development between hatching and eight weeks posthatching (Graber and Baker, 1971), it is of interest to consider contributors to the chick's endogenous pool of glycine.

Footnotes

1 Present address: Bagian ILMA Makanan Hewan, Fakultas Peternakan, Institute Pertanian Bogor, Bogor, West Java, Indonesia.

2 Department of Animal Science.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1972 by the American Society of Animal Science.