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.
01/Aug/2011
Adriano Kaneo Nagata, Paulo Borges Rodrigues, Renata Ribeiro Alvarenga, Márcio Gilberto Zangeronimo, Kênia Ferreira Rodrigues, Gustavo Freire Resende Lima
DOI: 10.1590/S1516-35982011000800014
This study was conducted in order to evaluate the influence of different levels of metabolizable energy and crude protein in diets formulated according to the ideal protein concept with phytase supplementation on performance and nutrient excretion of broilers from 22 to 42 days age. It was used 1,500 Coob lineage broilers at 22 days of age and with initial weight of 833 ± 7g, distributed in completely randomized design in a 3 × 3 + 1 factorial scheme composed of […]
Keywords: addictive; available phosphorus; enzyme; ideal protein; metabolizable energy; pollutants
01/Dec/2007
Paula Cambraia Marinho, Dalton de Oliveira Fontes, Francisco Carlos de Oliveira Silva, Martinho de Almeida e Silva, Francisco Alves Pereira, Cláudio Luiz Corrêa Arouca
DOI: 10.1590/S1516-35982007000800012
An experiment was carried out with the objective of evaluating the effect of different lysine levels in diets supplemented or not with ractopamine (RAC) on the performance and carcass characteristics of finishing barrows. Forty commercial hybrid swines were distributed to a randomized experimental block design, in a 2 x 2 factorial arrangement, with two digestible lysine levels (0.67 and 0.87%), with adjustment for the others amino acids to achieve an ideal protein relationship, and two levels of RAC (0 and […]
Keywords: addictive; amino acids; feeding; lean meat; nutrition; nutritional requirement