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<p>This study evaluated the apparent metabolizable energy (AME) and nitrogen-corrected AME (AMEn) of poultry offal meal (POM) and meat and bone meal (MBM) in broilers at different ages. Three metabolism trials were conducted in the pre-initial (1–8 days), starter (14–22 days), and grower (28–36 days) phases using 840 Cobb-500 broilers. Birds were housed in metabolic cages, and excreta were collected using the partial collection method. The experiment followed a completely randomized design with seven treatments and six replicates, with 10, 6, and 4 birds per phase. Treatments included a control diet and six test diets (80% control + 20% test ingredient: POM 1, 2, 3; MBM 1, 2, 3). AMEn values ranged from 3,189.7 to 3,342.9&#xa0;kcal/kg in POM and 2,292.1 to 2,345.4&#xa0;kcal/kg in MBM. Multiple regression equations were developed to predict AMEn. For POM, the best equation was AMEn = 6802 ‒ 213.3 (ether extract) ‒ 127.3 (calcium) + 10.47 (age) (R² = 0.92). For MBM, the equation was AMEn = 2789 ‒ 72 (ether extract) + 14 (calcium) + 20.28 (age) (R² = 0.91). These equations effectively estimate AMEn based on chemical composition and broiler age.</p>

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Nutritional composition and prediction of energy values of poultry offal meal and meat and bone meal for broilers

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年8月1日

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  • Camilla Roana Costa de Oliveira,
  • Carlos Bôa-Viagem Rabello,
  • Paulo Borges Rodrigues,
  • Claudia da Costa Lopes,
  • Bruno Araújo Silva,
  • Elainy Cristina Lopes,
  • Maria do Carmo Mohaupt Marques Ludke,
  • Lilian Francisco Arantes de Souza,
  • Júlio Cézar dos Santos Nascimento,
  • Webert Aurino da Silva,
  • Apolonio Gomes Ribeiro,
  • Lucas Rannier Ribeiro Antonino Carvalho,
  • Marcos José Batista dos Santos

摘要

This study evaluated the apparent metabolizable energy (AME) and nitrogen-corrected AME (AMEn) of poultry offal meal (POM) and meat and bone meal (MBM) in broilers at different ages. Three metabolism trials were conducted in the pre-initial (1–8 days), starter (14–22 days), and grower (28–36 days) phases using 840 Cobb-500 broilers. Birds were housed in metabolic cages, and excreta were collected using the partial collection method. The experiment followed a completely randomized design with seven treatments and six replicates, with 10, 6, and 4 birds per phase. Treatments included a control diet and six test diets (80% control + 20% test ingredient: POM 1, 2, 3; MBM 1, 2, 3). AMEn values ranged from 3,189.7 to 3,342.9 kcal/kg in POM and 2,292.1 to 2,345.4 kcal/kg in MBM. Multiple regression equations were developed to predict AMEn. For POM, the best equation was AMEn = 6802 ‒ 213.3 (ether extract) ‒ 127.3 (calcium) + 10.47 (age) (R² = 0.92). For MBM, the equation was AMEn = 2789 ‒ 72 (ether extract) + 14 (calcium) + 20.28 (age) (R² = 0.91). These equations effectively estimate AMEn based on chemical composition and broiler age.