Document Detail

Standardized ileal amino acid digestibility of meat and bone meal from different sources in broiler chicks and turkey poults with a nitrogen-free or casein diet.
MedLine Citation:
PMID:  18029806     Owner:  NLM     Status:  MEDLINE    
The aim of this study was to determine the effect of the standardization method and age on standardized ileal amino acid digestibility (SIAAD) of 4 meat and bone meal (MBM) samples in broiler chicks and turkey poults. The SIAAD were obtained by correcting apparent ileal digestibility (AID) values for basal ileal endogenous amino acid flow obtained from chicks and poults fed a N-free diet or a highly digestible protein diet (HDP; 100 g of casein/kg of diet). Four diets were formulated to contain 20% CP by using MBM as the only source of CP. Each diet was fed to 6 replicate cages of 30 or 8 birds/cage at 5 and 21 d, respectively, for 5 d. With the exception of all-beef MBM, chick AID values on d 21 were higher (P < 0.05) than on d 5. In poults, however, AID was not different between the 2 ages, with the exception of His, which was higher (P < 0.05) at d 21. There was no difference between methods on SIAAD on d 5 or 21 for all 4 MBM samples in either species. There was no effect of the method of standardization on SIAAD at either age for most amino acids. For chicks, however, standardization of the all-beef MBM sample with HDP resulted in higher (P < 0.05) SIAAD values for most of the amino acids (d 5). In poults at d 5, however, the SIAAD for most of the amino acids in the blended MBM were higher (P < 0.05) with HDP correction. The CV in SIAAD in chicks between the 2 methods of standardization was higher on d 5 (8.1%) relative to d 21 (5.0%) for all treatments. In poults, greater variability was observed on d 21 (8.2%) relative to d 5 (6.7%). Results from this study showed that at d 21, SI-AAD with either the N-free or the HDP diet resulted in similar digestibility values.
S A Adedokun; C M Parsons; M S Lilburn; O Adeola; T J Applegate
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Publication Detail:
Type:  Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Poultry science     Volume:  86     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-11-21     Completed Date:  2008-01-30     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2598-607     Citation Subset:  IM    
Department of Animal Sciences, Purdue University, 915 W. State Street, West Lafayette, IN 47907-2054, USA.
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MeSH Terms
Amino Acids / metabolism*
Animal Feed / analysis
Animal Nutritional Physiological Phenomena
Biological Products
Caseins / chemistry,  metabolism
Chickens / metabolism*
Diet / veterinary
Digestion / physiology
Gastrointestinal Contents
Ileum / metabolism*
Meat Products*
Nitrogen / chemistry,  metabolism
Turkeys / metabolism*
Reg. No./Substance:
0/Amino Acids; 0/Biological Products; 0/Caseins; 0/Minerals; 68409-75-6/bone meal; 7727-37-9/Nitrogen

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

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