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/2005
Alfredo Acosta Backes, Mário Fonseca Paulino, Dorismar David Alves, Luciana Navajas Rennó, Sebastião de Campos Valadares Filho, Rogério de Paula Lana
DOI: 10.1590/S1516-35982005000100030
Forty-seven bovines (average live weight of 266 kg), 16 zebu and 31 dairy crossbreeds (16 crossbreed Holstein x Gir and 15 Holstein x Guzera), were used to evaluate energy and protein requirements. Twelve animals (four of each racial group) were used as reference bovines, eleven were fed for maintenance and the 24 remaining were allotted to two treatments (zebu and dairy crossbreeds) in two phases (growing and fattening). Growing phase started when bovines reached 257 kg and lasted up to […]
Keywords: crossbreeds; energy; protein; zebu