Metabolizable Energy and Chemical Composition of Poultry by-Product Meal

Document Type : Research/Original Article


Department of Animal Science, Karai Branch, Islamic Azad University, Karai, Iran


This study was conducted to determine the chemical composition and metabolizable energy of poultry by-product meal (PBPM) from two slaughterhouses in Iran. Samples were analyzed for dry matter, crude protein, ash, ether extract and gross energy. The amounts of calcium, phosphorus, sodium, potassium, Magnesium, Iron, Manganese, copper and Zinc were determined. The apparent metabolizable energy (kcal/kg) (AME), apparent metabolizable energy corrected for nitrogen (kcal/kg) (AMEn), true metabolizable energy (kcal/kg) (TME) and true metabolizable energy corrected for nitrogen (kcal/kg) (TMEn) were determined based on sibbald’s procedure. For this purpose, twelve 230-day old New Hampshire males were used. There was no significant difference (P<0.05) between kinds of metabolizable energies in samples. The standardized digestible amino acid content also determined. The highest and lowest amount belongs to leucine and tryptophan. Results from this study showed there is different between two samples of PBPM.


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Volume 4, Issue 4 - Serial Number 4
December 2014
Pages 849-853
  • Receive Date: 25 December 2013
  • Revise Date: 17 January 2014
  • Accept Date: 30 January 2014
  • First Publish Date: 01 December 2014