Document Detail

Long-term feeding effects of dietary protein levels on egg production, immunocompetence and plasma amino acids of laying hens in subtropical condition.
MedLine Citation:
PMID:  19175455     Owner:  NLM     Status:  MEDLINE    
The objective of this study was to determine the effect of protein levels on production performance, immune response, liver triglyceride and plasma amino acids profile of laying hens during 21-48 weeks of age. Two groups of commercial hens (Babcock B-308) were fed with diets with different crude protein levels (14% and 18% CP). The high protein diet (18% CP) significantly increased production performance, essential amino acid intake, spleen weight (% of body weight), ND-titre (haemagglutination-inhibition test), serum albumin (g/dl), serum alpha-globulin and plasma essential amino acids (except histidine) and decreased liver triglyceride (mg/g liver) in relation to the low protein diet (14% CP). In long-term effect, therefore, this study suggested that adequate dietary condition of amino acids, particularly methionine and branch-chain amino acids is necessary for sustaining normal immunocompetence and achieving maximum production performance.
K Poosuwan; C Bunchasak; C Kaewtapee
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2009-01-13
Journal Detail:
Title:  Journal of animal physiology and animal nutrition     Volume:  94     ISSN:  1439-0396     ISO Abbreviation:  J Anim Physiol Anim Nutr (Berl)     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-05-14     Completed Date:  2010-08-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101126979     Medline TA:  J Anim Physiol Anim Nutr (Berl)     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  186-95     Citation Subset:  IM    
Department of Animal Science, Faculty of Agriculture, Kasetsart University, Banngkok, Thailand.
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MeSH Terms
Amino Acids / blood*
Animal Feed / analysis
Animal Nutritional Physiological Phenomena
Chickens / blood*,  immunology,  physiology*
Diet / veterinary
Dietary Proteins / pharmacology*
Drug Administration Schedule
Oviposition / drug effects*
Reg. No./Substance:
0/Amino Acids; 0/Dietary Proteins

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

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