Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 488258
Title Estimating requirements for apparent faecal and standardised ileal digestible amino acids in laying hens by a metaanalysis approach
Author(s) Krimpen, M.M. van; Veldkamp, T.; Riel, J.W. van; Khaksar, V.; Hashemipour, H.; Blok, M.C.; Spek, W.
Source Wageningen : Wageningen UR Livestock Research (Livestock research report 848) - 71
Department(s) LR - Animal Nutrition
LR - Animal Behaviour & Welfare
Publication type Research report
Publication year 2015
Keyword(s) hennen - aminozuren - voer - meta-analyse - verteerbaarheid - eiwitverteerbaarheid - dunne darm - voedingsstoffengehalte - voedingsstoffenbehoeften - voedingsbehoeften - pluimvee - pluimveevoeding - hens - amino acids - feeds - meta-analysis - digestibility - protein digestibility - small intestine - nutrient content - nutrient requirements - feed requirements - poultry - poultry feeding
Categories Animal Nutrition and Feeding (General) / Poultry
Abstract The aim of the present study is to update the requirements for the essential amino acids of laying hens, both on a AFD and SID basis, by performing a meta-analysis on dose-response studies used to derive requirement values for essential amino acids (lysine, methionine+cysteine, threonine and tryptophan) in laying hens as presented in the literature. In this meta-analysis, the data are fitted by use of the Wood equation (see paragraph 2.4). The amino acid intake levels for realizing maximal rate of lay, egg mass and feed efficiency are provided. The amino acid requirements for use in practice are based on the amino acid intake levels at which 95% of these maximum responses were reached.
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