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


     

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 HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Du, Z.
Right arrow Articles by Trammell, D. S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Du, Z.
Right arrow Articles by Trammell, D. S.

Journal of Animal Science, Vol 74, Issue 7 1657-1663, Copyright © 1996 by American Society of Animal Science

JOURNAL ARTICLE

Utilization of copper in copper proteinate, copper lysine, and cupric sulfate using the rat as an experimental model

Z. Du, R. W. Hemken, J. A. Jackson and D. S. Trammell
Department of Animal Sciences, University of Kentucky, Lexington 40546, USA.

One hundred twenty male Sprague-Dawley rats, averaging 108.6 g initial body weight, were used in two feeding experiments to evaluate the utilization of Cu in Cu proteinate, Cu lysine, and cupric sulfate. In Exp. 1, 60 rats were randomly assigned to 12 treatments in a 2 x 2 x 3 factorial arrangement of treatments, with Zn supplementation at 0 or 1000 mg/kg diet, Cu supplementation at 5 or 15 mg/kg diet, and Cu form of CuSO4.5H2O, Cu proteinate, or Cu lysine. The purified basal diet contained .81 mg Cu, 20 mg Zn, and 60 mg Fe/kg diet. Experiment 2 was similar to Exp. 1 except Zn was replaced by Fe. In Exp. 1, feed intake of Cu proteinate (15.74 g/d) and Cu lysine (15.74 g/d) treatments was higher (P < .05) than that of CuSO4 (15.33 g/d). Body weight gain and feed intake were increased by high dietary Cu at either requirement or high levels of dietary Zn (P < .05). There were no differences in feed intake or body weight gain among the treatment groups in Exp. 2 (P > .05). The Cu utilization of Cu proteinate and Cu lysine were higher (P < .05) based on the liver Cu content. The rats fed Cu complexes had a higher liver Fe or Zn content (P < .05) than the rats fed CuSO4, suggesting that Cu complexes are absorbed via another mechanism that differs from that of inorganic Cu and does not interfere with Zn and Fe. Spleen Cu content may be a sensitive indicator of Cu status. High dietary Zn decreased Cu utilization, but this effect was overcome by high dietary Cu.


This article has been cited by other articles:


Home page
 J. Appl. Poult. Res.Home page
L. Nollet, G. Huyghebaert, and P. Spring
Effect of Different Levels of Dietary Organic (Bioplex) Trace Minerals on Live Performance of Broiler Chickens by Growth Phases
J. Appl. Poult. Res., January 1, 2008; 17(1): 109 - 115.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
J. K. Ahola, D. S. Baker, P. D. Burns, R. G. Mortimer, R. M. Enns, J. C. Whittier, T. W. Geary, and T. E. Engle
Effect of copper, zinc, and manganese supplementation and source on reproduction, mineral status, and performance in grazing beef cattle over a two-year period
J Anim Sci, August 1, 2004; 82(8): 2375 - 2383.
[Abstract] [Full Text] [PDF]

Home page
 J DAIRY SCIHome page
G. P. Yost, J. D. Arthington, L. R. McDowell, F. G. Martin, N. S. Wilkinson, and C. K. Swenson
Effect of Copper Source and Level on the Rate and Extent of Copper Repletion in Holstein Heifers
J Dairy Sci, December 1, 2002; 85(12): 3297 - 3303.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1996 by the American Society of Animal Science.