Ileal standardised digestibility
        of amino acids in feedstuffs for pigs
                 AFZ
             Ajinomoto Eurolysine
             Aventis Animal Nutrition
               INRA - UMRVP
                 ITCF
                                         AmiPig – Ileal standardised digestibility of amino acids in feedstuffs for pigs - 2
            Table of contents
            Introduction..........................................................................................................................3
            Database..............................................................................................................................4
            A short introduction to amino acid digestibility.....................................................................5
            Ileal digestibility of amino acids as an estimate of their availability.
            Concepts and definitions (by Bernard Sève, INRA) ............................................................6
            Calculations .......................................................................................................................10
            Materials and methods.......................................................................................................12
            References.........................................................................................................................14
            Tables................................................................................................................................16
                  Proximate analysis................................................................................................17
                  Total amino acids..................................................................................................19
                  Ileal standardised digestibilities ............................................................................25
                  Digestible amino acids..........................................................................................31
            Authors...............................................................................................................................37
                  AFZ – French Feed Database ..............................................................................38
                  Ajinomoto Eurolysine............................................................................................39
                  Aventis Animal Nutrition........................................................................................40
                  INRA – UMRVP.....................................................................................................42
                  ITCF......................................................................................................................43
              This document was extracted from the AmiPig software. It contains only a
              part of the data available in the software. Particularly, standard deviations
              and apparent digestibilities are reported in the AmiPig software and not in
              this document.
              Copyright © 2000 AFZ, Ajinomoto Eurolysine, Aventis Animal Nutrition, INRA, and ITCF. All rights reserved. No part of this
              publication may be reproduced in any form or by any means, electronic or mechanical, including photocopying, recording, or
              by any information storage or retrieval system, without written authorisation of the copyright owners. Persons desiring to
              make short quotations for scientific purposes may do so without permission provided full credit is given to the copyright
              owners.
              AFZ, Ajinomoto Eurolysine, Aventis Animal Nutrition, INRA, and ITCF expressly disclaim all and any liability and
              responsibility concerning the use of the information or data contained in this publication and shall not be held liable for any
              damages resulting from the use thereof.
                            Copyright 2000 AFZ, Ajinomoto Eurolysine, Aventis Animal Nutrition, INRA, ITCF
                                                        AmiPig – Ileal standardised digestibility of amino acids in feedstuffs for pigs - 3
                Introduction
                The amino acids contained in feedstuffs are            The three laboratories used comparable
                not fully available to animal. It is therefore         experimental protocols, including surgical
                more efficient to formulate diets using values         procedure (the pigs were fitted with end-to-end
                for digestible amino acids rather than total           ileo-rectal anastomosis) and the formulation of
                amino acids. The optimisation of amino acid            diets (the tested feedstuff was the sole source
                supply leads to increased animal performance           of protein of the diet). After a strict scientific
                and, because the ingested protein is better            assessment of their compatibility, the three
                balanced for animal’s requirements, nitrogen           databases were merged to obtain the AmiPig
                excretion is reduced. Formulating to digestible        database. Apparent and standardised ileal
                amino acids, however, requires consistent and          digestibilities were calculated according to a
                comparable data.                                       unique concept.
                                                                       In addition to the digestibility values, AmiPig
                The AmiPig table provides amino acid ileal             contains, for each feedstuff, the total and
                digestibility values for 62 common feedstuffs          digestible amino acid values, proximate
                used in pig diets. These data (calculated from         analysis data, the standard deviations of these
                more than 350 samples) were obtained                   values and the numbers of samples used in
                between 1987 and 1997 by INRA, Aventis                 the calculations. Other features include the
                Animal Nutrition and ITCF, associated with             ability to make comparison tables and graphs
                Ajinomoto Eurolysine. With further support             for the different feedstuffs and amino acid
                from the French Ministry of Research, and with         values, and the export to popular data formats.
                the help of the French Feed Database of the
                AFZ, these organisations have combined their
                databases to produce this unique,
                comprehensive and reliable corpus of pig               For support and questions, contact:
                amino acid digestibilities.                            AFZ
                                                                       16 rue Claude Bernard
                                                                       75231 Paris Cedex 05 FRANCE
                                                                       Tel 33 (0) 1 44 08 18 08
                                                                       Fax 33 (0) 1 44 08 18 53
                                                                       Email : tran@inapg.inra.fr
                                                                       Web : http://www.feedbase.com
                  Please use the following when referring to AmiPig in a document:
                  AFZ, Ajinomoto Eurolysine, Aventis Animal Nutrition, INRA, ITCF, 2000. AmiPig, Ileal standardised
                  digestibility of amino acids in feedstuffs for pigs.
                                      Copyright 2000 AFZ, Ajinomoto Eurolysine, Aventis Animal Nutrition, INRA, ITCF
                                                      AmiPig – Ileal standardised digestibility of amino acids in feedstuffs for pigs - 4
                Database
                Content                                              Units
                The AmiPig database contains the following           
   The composition values and the digestible
                data.                                                    amino acid values are expressed in % as
                
   Names and definitions of 62 common                   fed (fresh), with the exception of antitrypsic
                    feedstuffs.                                          activity (TIA), expressed in Units of
                                                                         inhibited trypsin per milligram of sample.
                
   Mean values, standard deviations and             
   All the digestibility data are expressed in
                    number of values for crude protein,                  %.
                    individual amino acids, dry matter, crude
                    fibre, ether extract, ash, Neutral Detergent
                    Fibre, Acid Detergent Fibre, lignin, starch,
                    calcium and phosphorus. Antitrypsic
                    activity and tannins are given when
                    relevant.
                
   Mean values and standard deviations for
                    corrected apparent ileal digestibility,
                    standardised digestibility and the content
                    in standardised digestible nutrient for
                    crude protein and individual amino acids.
                                     Copyright 2000 AFZ, Ajinomoto Eurolysine, Aventis Animal Nutrition, INRA, ITCF