Document Detail

Effect of dietary Fe to Cu ratios on hematological and growth responses of broiler chickens.
MedLine Citation:
PMID:  430259     Owner:  NLM     Status:  MEDLINE    
A total of 2,640 broiler strain cockerels were used in three experiments to determine the interrelationships between Fe and Cu requirements of 1- to 21-day old broiler chicks. In each experiment, a starch non-fat milk basal diet was fed to chicks maintained in battery brooders beginning at 1 day of age. Maximum hemoglobin levels and packed cell volumes (PCV) of 21-day old chicks were found by feeding 80 parts per million (ppm) of dietary Fe and 8 ppm of dietary Cu from 1 to 21 days of age. The heaviest 21-day old chicks were found by feeding 80 ppm dietary Fe. Variations were found among experiments in the copper requirement based on body weight. The Cu requirement ranged from 8 to 16 ppm as indicated by 21-day old chick weights. A 10:1 dietary Fe to Cu ratio with an Fe requirement of 80 ppm appeared to maximize hemoglobin levels and PCV's of 21-day old broiler chicks; whereas, a 5:1 dietary Fe to Cu ratio, rather than a 10:1, 15:1, or 20:1 ratio, maximized 21-day old chick weights. Iron requirements for hematological and growth responses are essentially the same; however, the copper requirement may be slightly different for the two criteria.
J L McNaughton; E J Day
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of nutrition     Volume:  109     ISSN:  0022-3166     ISO Abbreviation:  J. Nutr.     Publication Date:  1979 Apr 
Date Detail:
Created Date:  1979-06-29     Completed Date:  1979-06-29     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0404243     Medline TA:  J Nutr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  559-64     Citation Subset:  IM    
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MeSH Terms
Body Weight / drug effects*
Chickens / physiology*
Copper / metabolism*
Dose-Response Relationship, Drug
Hemoglobins / metabolism*
Iron / metabolism*
Nutritional Requirements
Reg. No./Substance:
0/Hemoglobins; 7439-89-6/Iron; 7440-50-8/Copper

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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