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/Jun/2005
Paulo Borges Rodrigues, Ricardo de Souza Martinez, Rilke Tadeu Fonseca de Freitas, Antônio Gilberto Bertechini, Elias Tadeu Fialho
DOI: 10.1590/S1516-35982005000300021
A digestibility assay were carried out to evaluate, in consecutives periods, the total excreta collection method and the chromium oxide method as a marker. Apparent metabolizable energy corrected by nitrogen retention (AMEn) and aparent digestibility of dry matter coefficient (ADDMC) of broiler diet based in a ground corn and soybean meal containing 19% crude protein and 3.100 kcal ME/kg. Sixty adult Leghorn cockerels weigh, in average, 2.350±105 g were used. Each cockerel participates in the evaluation of the two methods […]
Keywords: adult cockerels; chromium oxide; dry matter; metabolizable energy; total collection
01/Oct/2004
Paulo Borges Rodrigues, Wilson Moreira Dutra Júnior, Horacio Santiago Rostagno, Kênia Ferreira Rodrigues
DOI: 10.1590/S1516-35982004000500011
Three assays were carried out to evaluate the nutritive value of the barnyardgrass seeds (Echnochloa spp.) for poultry. In the first assay, twelve adult cockerels were used to determine the true metabolizable energy value corrected by nitrogen retained (TMEn), using the forced fed method. In this assay six cockerels were forced fed 30 g of the feed and six cockerels were fastened to determinate metabolic and endogenous losses. In the second assay, twelve cecectomized cockerels were used to determine the […]
Keywords: adult cockerels; alternative feed; broilers; cecectomized cockerels; digestibility; metabolizable energy