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/1999
Rui da Silva Verneque, Mário Luiz Martinez, Roberto Luiz Teodoro, Amaury Alípio Pimentel, William José Ferreira
DOI: 10.1590/S1516-35981999000200013
Predicted transmitting ability (PTA) of milk yield of 529 sires using animal model (MA), sire model (MT) and herdmate contemporary comparison method (MCR) were calculated and compared by means of correlation’s rank and values, reliability, differences among PTA and percent of coincidence in the selection of the best bulls. Two sets of data were considered one contained up to five lactation per cow and other with production data at first lactation. Data of 12,762 lactations of 5757 Gyr and crossbred […]
Keywords: animal model; contemporary herdmates; dairy cattle; genetic evaluation; Gyr breed; mixed model; sire model