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/Oct/2009
Afonso Aurélio de Carvalho Peres, Hernán Maldonado Vásquez, Paulo Marcelo de Souza, José Fernando Coelho da Silva, Omar Vieira Villela, Fernando Cesar dos Santos
DOI: 10.1590/S1516-35982009001000030
An economical analysis of milk production systems was made with lactating cows on Mombaça grass pasture receiving different sources of roughage supplementation during the dry season. The supplementations were: black oat pasture, forage sugarcane with urea and sorghum silage. The economical indicators used were: net present value (NPV) and internal rates of return (IRR). For each production system studied one cash flow was used with their particularities and productive and reproductive performances index, obtained experimentally. The cash flows were built […]
Keywords: dairy cattle; internal rates of return; net present value; roughage supplementation; sensitivity analysis
01/Dec/2004
Afonso Aurélio de Carvalho Peres, Paulo Marcelo de Souza, Hernan Maldonado, José Fernando Coelho da Silva, Cezar da Silva Soares, Suzana Correa Wagner Barros, [...]
DOI: 10.1590/S1516-35982004000600023
Different economic viability of pasture production systems to heifers grazing elephantgrass pasture in North Fluminense region wa analyzed. The economical analysis of three systems of growing fedlot dairy heifers grazing elephantgrass pasture was performed. In order to study the hazard that each system can present due to the oscillations of prices in the market, Monte Carlo simulation was used. The systems studied were: without supplementation (PS1), offer of 0.5% of the alive weight of concentrate (PS2), and alternate pasture of […]
Keywords: elephantgrass; internal rates of return; Monte Carlo simulations; net present value; sensibility analysis; supplementation