Apparent metabolizable energy value of meat and bone meal for white Pekin ducks

S. A. Adedokun, O. Adeola

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24 Scopus citations


Apparent metabolizable energy and AMEn values of 12 samples of meat and bone meal (MBM) were determined using 288 ducks with an average weight of 3.4 kg. Diets were formulated for each of the 12 MBM samples by substituting 0, 5, or 10% MBM in a basal corn-soybean meal diet; corn and soybean meal were adjusted at the same ratio to account for the substitution. Each diet was fed to 8 ducks in individual cages in a metabolism assay that employed a 4-d acclimation period followed by 3 d of excreta collection. The gross energy (GE), CP, crude fat (CF), ash, Ca, and P contents of the MBM samples, on a per kilogram of DM basis, ranged from 3,493 to 4,732 kcal, 496.7 to 619.1 g, 91.1 to 151.2 g, 200.3 to 381.9 g, 54.3 to 145.8 g, and 25.6 to 61.7 g, respectively. The AME and AMEn values of the MBM samples were calculated from the slope of the regression of MBM contribution (in kcal) to AME and AMEn intake, respectively, against the amount (in kg) of MBM in diet. The AME or AMEn of the 12 MBM samples ranged from 1,781 to 3,916 kcal/kg of DM or 1,772 to 3,662 kcal/kg of DM, respectively. The variation in AME was described by the regression equation AME = -7,272 + 5.000 GE (kcal/kg) - 19.43 CP (g/kg) - 29.51 CF (g/kg) - 297.17 P (g/kg) + 106.09 Ca (g/kg) + 17.03 ash (g/kg), with R2 = 0.552 and SD = 753. The corresponding equation for AMEn was = -7,389 + 4.584 GE (kcal/kg) - 16.74 CP (g/kg) - 25.11 CF (g/ kg) - 218.24 P (g/kg) + 97.29 Ca (g/kg) + 7.95 ash (g/ kg), with R 2 = 0.598 and SD = 586. The results reveal that variation in each of the chemical components of MBM alone is not the sole determinant of AME or AMEn value of MBM, but that the interactions among these components influence energy utilization in MBM for ducks.

Original languageEnglish
Pages (from-to)1539-1546
Number of pages8
JournalPoultry Science
Issue number10
StatePublished - 2005

Bibliographical note

Copyright 2021 Elsevier B.V., All rights reserved.


  • Apparent metabolizable energy
  • Duck
  • Meat and bone meal
  • Regression
  • Slope

ASJC Scopus subject areas

  • Animal Science and Zoology


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