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
Marcelo de Andrade Ferreira, Sebastião de Campos Valadares Filho, José Fernando Coelho da Silva, Mário Fonseca Paulino, Rilene Ferreira Diniz Valadares, Paulo Roberto Cecon, [...]
DOI: 10.1590/S1516-35981999000200018
The effects of different dietary concentrate levels on the intakes of dry matter (DM), crude protein (CP), neutral detergent fiber (NDF), ether extract (EE), total carbohydrates (TC), total digestible nutrients (TDN), calcium (Ca), phosphorus (P), magnesium (Mg), sodium (Na) and potassium (K) were evaluated. The live weight (LWG) and the empty body gains (EBG), feed:gain ratio (F:G), carcass gain (CG) and the carcass productivity in relation to live weight (LWCP) and to empty body weight (EBW) were also evaluated. Twenty […]
Keywords: concentrate; crossbred bovines; performance
01/Apr/1999
Marcelo de Andrade Ferreira, Sebastião de Campos Valadares Filho, José Fernando Coelho da Silva, Mário Fonseca Paulino, Rilene Ferreira Diniz Valadares, Paulo Roberto Cecon, [...]
DOI: 10.1590/S1516-35981999000200019
The effects of five dietary concentrate levels on the body composition and on the net requirements of protein and energy for weight gain were evaluated. Twenty nine F1 Simental Nellore bulls, averaging 17 months of age and initial 354 kg LW, were used. Five animals were slaughtered at the beginning of the experiment, as a reference, to estimate the initial empty body weight (EBW) and the initial concentrations of fat, protein and energy. The remaining animals were allotted to a […]
Keywords: concentrate diet; crossbred bovines; nutritional requirements