Document Detail

Correlation of an immobilized digestive enzyme assay with poultry true amino acid digestibility for soybean meal.
MedLine Citation:
PMID:  17234849     Owner:  NLM     Status:  MEDLINE    
The immobilized digestive enzyme assay (IDEA) was run on 6 soybean meal (SBM) samples and compared with true amino acid digestibility (TAAD) content, as determined using cecectomized roosters. The IDEA values were excellent TAAD predictors as evidenced by R(2) values of 0.90 and 0.88 for lysine and cystine, respectively. The original IDEA took 2.5 d to run, and therefore we modified the protocol to reduce the time to 18 h. This modified IDEA procedure was run on 17 SBM samples, and IDEA values were shown to be excellent predictors of TAAD content. This IDEA SBM kit was validated by predicting the TAAD of 5 SBM not included in the 17-sample set above and the comparison of the predicted vs. determined TAAD. Finally, the IDEA SBM kit was used to compare the predicted TAAD of 338 SBM samples from around the world. The predicted lysine digestibility on the world survey samples ranged from 70.6 to 95.5% with an average of approximately 89%, and the ranges and means of the other amino acid digestibilities were also calculated.
C S Schasteen; J Wu; M G Schulz; C M Parsons
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Poultry science     Volume:  86     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-01-19     Completed Date:  2007-03-21     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  343-8     Citation Subset:  IM    
Novus International Inc., 20 Research Park Drive, St. Charles, MO 63304, USA.
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MeSH Terms
Amino Acids / metabolism*
Animal Feed / analysis
Animal Nutritional Physiological Phenomena
Chickens / metabolism*
Diet / veterinary
Digestion / physiology*
Enzymes, Immobilized
Nutritive Value
Soybeans / metabolism*
Reg. No./Substance:
0/Amino Acids; 0/Enzymes, Immobilized

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

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