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/Feb/2000
Anibal Eugênio Vercesi Filho, Fernando Enrique Madalena, José Joaquim Ferreira, Vânia Maldini Penna
DOI: 10.1590/S1516-35982000000100020
ABSTRACT – Economic weights for important economic characteristics in the “Milk Production System” of the Santa Rita Experimental Farm, EPAMIG, located in the municipality of Prudente de Moraes, MG were calculated. The economic weights were defined as the partial derivative of profit with respect to each trait, in method (1), and as the partial derivative of the receipts/cost ratio, in method (2), evaluated at the mean value of all other traits. The economic weights, expressed in milk equivalents, for milk […]
Keywords: dairy cattle; economic weights; selection objectives