The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The objective of this work was to determine the apparent metabolizable energy (AME) and nitrogen-corrected apparent metabolizable energy (AMEn) of meat and bone meal (MBM) with different particle sizes (coarse, medium and fine), in two levels of substitution (20 and 40%) for broiler chicks. Two hundred and eighty broiler chicks with 15 days of age were allotted to a completely randomized design, with seven treatments (six treatments with meat and bone meal and a reference diet), four replicates and ten birds per experimental unit. The AME mean values for the 20 and 40% of substitution were 2.60 and 2.27 and the EMAn 2.50 and 2.14 Kcal/g DM, respectively. The results, considering coarse, medium and fine particle sizes of the MBM, were 2.13, 2.65 and 2.53 kcal/g DM for AME, and 2.03, 2.56 and 2.37 kcal/g DM to AMEn, respectively.
Effect of the particle size and the substitution level on the energy values of meat and bone meal for broiler chicks
Brugalli,Irineu and Albino,Luiz Fernando Teixeira and Silva,Dirceu Jorge da and Gomes,Paulo Cezar and Rostagno,Horacio Santiago and Silva,Martinho de Almeida e. Effect of the particle size and the substitution level on the energy values of meat and bone meal for broiler chicks. R. Bras. Zootec. [online]. 1999, vol.28, 4, [cited 2026-04-24], pp.753-757. Available from: <https://rbz.org.br/article/effect-of-the-particle-size-and-the-substitution-level-on-the-energy-values-of-meat-and-bone-meal-for-broiler-chicks/>. ISSN 1516-3598. https://doi.org/10.1590/S1516-35981999000400014.
Brugalli,Irineu; Albino,Luiz Fernando Teixeira; Silva,Dirceu Jorge da; Gomes,Paulo Cezar; Rostagno,Horacio Santiago; Silva,Martinho de Almeida e. Effect of the particle size and the substitution level on the energy values of meat and bone meal for broiler chicks. R. Bras. Zootec., v.28, 4, p. 753-757. Aug. 1999. Available from: <https://rbz.org.br/article/effect-of-the-particle-size-and-the-substitution-level-on-the-energy-values-of-meat-and-bone-meal-for-broiler-chicks/>. acess on 24 Apr. 2026. https://doi.org/10.1590/S1516-35981999000400014.
Brugalli,Irineu, & Albino,Luiz Fernando Teixeira, & Silva,Dirceu Jorge da, & Gomes,Paulo Cezar, & Rostagno,Horacio Santiago, & Silva,Martinho de Almeida e. (1999). Effect of the particle size and the substitution level on the energy values of meat and bone meal for broiler chicks. R. Bras. Zootec., 28(4) , 753-757. https://doi.org/10.1590/S1516-35981999000400014.
BrugalliIrineu, AlbinoLuiz Fernando Teixeira, SilvaDirceu Jorge da, GomesPaulo Cezar, RostagnoHoracio Santiago, SilvaMartinho de Almeida e. Effect of the particle size and the substitution level on the energy values of meat and bone meal for broiler chicks. R. Bras. Zootec. [Internet]. 1999 Aug [cited 2026 Apr 24]; 28(4): 753-757. Available from: https://rbz.org.br/article/effect-of-the-particle-size-and-the-substitution-level-on-the-energy-values-of-meat-and-bone-meal-for-broiler-chicks/. https://doi.org/10.1590/S1516-35981999000400014.
Figure 6
Differential abundance for the species Faecalibacterium prausnitzii (A) and Megamonas funiformis (B).
