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/Apr/2002
Analía del Valle Garnero, Mauricio Barros Fernandes, Luiz Fernando Camilo Figueiredo, Raysildo Barbosa Lôbo
DOI: 10.1590/S1516-35982002000400015
In the Nellore Breed Genetic Improvement Program (PMGRN) the breeding value predictions of five different traits are put together in a single number named Total Genetic Merit (MGT). This number is calculated from the Expected Progeny Differences (EPDs) of: weight at 120 days of age – maternal; weight at 120, 365 and 450 days of age direct; and scrotal circumference at 365 and 450 days of age direct. The aim of this study was to identify and to describe the […]
Keywords: genetic parameters; genetic value; Nellore; ranking; selection index