0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
Q2
SJR
20
MNiSW
165.24
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

Validation of a mathematical model to explain variation in apparent ileal amino acid digestibility of diets fed to pigs

J. Gdala 2,  
S. Boisen 3,  
 
1
TNO Nutrition and Food Research Institute, Department of Animal Nutrition and Meat Technology (ILOB-NCV), PO Box 15, 6700 AA Wageningen, The Netherlands
2
The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
3
National Institute of Animal Science, Foulum Research Centre, Denmark
4
Department of Animal Nutrition, Wageningen Agricultural University, The Netherlands
J. Anim. Feed Sci. 1996;5(4):303–315
Publish date: 1996-09-13
KEYWORDS:
ABSTRACT:
Variation in apparent ileal digestibility of amino acids within the same diet is partly related to the amino acid composition of feed protein and endogenous protein. Mathematical model which estimate the apparent ileal amino acid digestibility coefficients, based on apparent ileal digestibility coefficients of the diet protein and the amino acid composition of the diet protein as factors, has been described in literature. In the present study, apparent ileal amino acid digestibilities of pigs fed eighteen different diets with a wide range of different protein sources were determined and the mathematical model from the literature was validated. Results of the validation showed that the mathematical model explained 60-94% of the variation in apparent ileal amino acid digestibility of sixteen diets. However, variations for diets with Phaseolus beans and meat and bone meal as protein sources were explained by only 45 and 27%, respectively. Standard error of prediction (SEP) was about 2-3 times higher as compared to the standard error of the mean (SEM) of the determinations between animals. For most of the feedstuffs, the factors of the model explain the main part of the variation in apparent amino acid digestibility ( R2 ≥ 0.60). If the explained part of the variation in apparent amino acid digestibility is small, R2 < 0.50, other factors which are not included in the model have major effects on apparent digestiblity of the amino acids.
 
CITATIONS (4):
1. Digestibility of amino acids in organically cultivated white-flowering faba bean and cake from cold-pressed rapeseed, linseed and hemp seed in growing pigs
Magdalena Høøk Presto, Karin Lyberg, Jan Erik Lindberg
Archives of Animal Nutrition
2. A procedure for ileostomisation of adult roosters to determine apparent ileal digestibility of protein and amino acids of diets:
P van Leeuwen, L Babinszky, M.W.A Verstegen, J Tossenberger
Livestock Production Science
3. Formulation of pig diets according to ileal digestible amino acid content
L Buraczewska, J Wasilewko, H Fandrejewski, T Zebrowska, I.K Han
Livestock Production Science
4. Establishment of Tabulated Values for Standardized Ileal Digestibility of Crude Protein and Essential Amino Acids in Common Feedstuffs for Pigs
Carsten Pedersen, Sigurd Boisen
Acta Agriculturae Scandinavica, Section A — Animal Science
ISSN:1230-1388