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.
Mario Luiz Chizzotti, Sebastião de Campos Valadares Filho, Maria Ignês Leão, Rilene Ferreira Diniz Valadares, Fernanda Helena Martins Chizzotti, Karla Alves Magalhães, [...]
01/Dec/2005
Mario Luiz Chizzotti, Sebastião de Campos Valadares Filho, Maria Ignês Leão, Rilene Ferreira Diniz Valadares, Fernanda Helena Martins Chizzotti, Karla Alves Magalhães, [...]
DOI: 10.1590/S1516-35982005000600036
Four ruminally cannulated Holstein steers averaging 259 kg of body weight were assigned to a 4×4 Latin square to study the effects of replacing elephantgrass silage with cottonseed hulls on serum urea nitrogen (SUN), ruminal metabolism, urinary excretion of nitrogenous compounds, and microbial protein synthesis measured by omasal purine bases or by urinary excretion of purine derivatives. Treatments (60% of forage) contained on DM basis: 0, 10, 20 or 30% of cottonseed hulls that partially replaced elephantgrass silage in the […]
Keywords: by-product; omasal collection; purine basis; purine derivatives; roughage; serum urea nitrogen