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/2006
Fernando de Paula Leonel, José Carlos Pereira, Ricardo Augusto Mendonça Vieira, José Antônio de Freitas, Alecssandro Regal Dutra, Adhemar Ventura de Lima, [...]
DOI: 10.1590/S1516-35982006000200035
The objective of this trial was to determine the macrominerals requirements (Ca, P, Mg, Na, and K) for young bulls from different genetic groups. Forty-four young bulls from the following genetic groups were used: Nellore, F1 Nellore x Aberdeen-Angus, F1 Nellore x Brown Swiss, and F1 Nellore x Simmental. Animals averaged 362 ± 35 kg of initial body weight and between 10 to 11 months of age. Diet contained signal grass hay (Brachiaria decumbens, Stapf.), soybean meal, ground corn, molasses, […]
Keywords: beef cattle; mineral retention; minerals; nutrition; steers
01/Nov/1999
Kleber Tomás de Resende, Roberto Germano Costa, Marcelo Teixeira Rodrigues, Cláudio José Borela Espeschit, Augusto César de Queiroz
DOI: 10.1590/S1516-35981999000600030
This work was carried out to estimate the retention and the net requirements of Ca and P, in 120 goats averaging 42 kg LW. The estimate retention based in the difference between the total of each mineral stored in the fetus, the uterus, the membranes, the fetal fluids and the mammary gland of animals in the different phases of pregnancy and the total of each mineral stored in the empty goats. The model of prediction used was lnY = A […]
Keywords: goats; mineral retention; minerals; nutritional requirements; pregnancy