Amino acid digestibility and poultry feed formulation: expression, limitations and application

Bryden, Wayne L. and Li, Xiuhua (2010) Amino acid digestibility and poultry feed formulation: expression, limitations and application. Revista Brasileira de Zootecnia, 39 Supp. 1: 279-287.


Author Bryden, Wayne L.
Li, Xiuhua
Title Amino acid digestibility and poultry feed formulation: expression, limitations and application
Journal name Revista Brasileira de Zootecnia   Check publisher's open access policy
Translated journal name Brazilian Journal of Animal Science
Language of Journal Name por
ISSN 1806-9290
1516-3598
Publication date 2010-06
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1590/S1516-35982010001300031
Volume 39
Issue Supp. 1
Start page 279
End page 287
Total pages 9
Place of publication Vicosa, Brazil
Publisher Universidade Federal de Vicosa
Collection year 2011
Language por
eng
Abstract The nutritional value or quality of dietary proteins used for poultry feed formulation varies: amino acid availability is an important measure of protein quality. Determination of ileal digestibility values has become the preferred method for estimating amino acid availability. This review discusses the different approaches to the expression of digestibility results, including correction for endogenous loss and the derivatisation of standardised values. Sources of variation in values include, the assay protocol, anti-nutritional factors in feedstuffs and feed milling. Feed formulating with ileal digestibility values should allow higher dietary inclusion levels of protein feedstuffs of lower quality provided that values of different feedstuffs are additive, the age of the bird and the use of feed enzymes are considered. An Australian data set of "ileal digestible amino acid values in feedstuffs for poultry" that has recently be published is described. This overview is intended to stimulate interest in the generation and application of ileal digestibility as a method for estimating amino acid availability in poultry nutrition.
Keyword Amino acids
Apparent digestibility
Chickens
Endogenous loss
Feedstuffs
Ileum
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article available in English and Portugese

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: Official 2011 Collection
School of Agriculture and Food Sciences
ERA 2012 Admin Only
 
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Created: Wed, 16 Mar 2011, 13:25:53 EST by Dr Xiuhua Li on behalf of School of Animal Studies