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/Sep/2011
Odilon Gomes Pereira, Rivelino Rovetta, Karina Guimarães Ribeiro, Manoel Eduardo Rozalino Santos, Dilermando Miranda da Fonseca, Paulo Roberto Cecon
DOI: 10.1590/S1516-35982011000900005
The objective of this study was to evaluate the morphogenic and structural characteristics of tifton 85 bermudagrass under different nitrogen doses (0, 33, 66, 100 or 133 kg/ha.year of N) and three different plant heights (30, 40 or 50 cm) at harvesting time. A split plot scheme in a completely randomized design with three replications was used. The nitrogen (N) doses stood for the portions and the haversting heights, for the subportions. The leaf appearance rate of tifton 85 bermudagrass […]
Keywords: grazing; defoliation frequency; leaf; morphogenesis; senescence; tiller
01/Dec/2009
Carlos Eduardo da Silva Pedroso, Pedro Lima Monks, Otoniel Geter Lauz Ferreira, Lasier Silveira Lima, Otavio Matos Tavares
DOI: 10.1590/S1516-35982009001200004
A field experiment was carried out to evaluate the morphogenetic characteristics of pearl millet (Pennisetum glaucum (L.) R.Br.), under rotational grazing with the following rest periods between grazings (RP), corresponding to the time required for expansion from: RP 1.5 to 2 leaves, RP 2.5 to 3 leaves and 3.5 to 4 leaves. Morphogenic characteristics were evaluated in four replications of the area (paddocks) and consisted of leaf blade growth, leaf senescence, stem growth, leaf appearance, phillochron and leaf life-span. The […]
Keywords: defoliation frequency; expanded leaf; morphogenesis; number of alive leaves; regrowth
01/May/2009
Carlos Eduardo da Silva Pedroso, Pedro Lima Monks, Otoniel Geter Lauz Ferreira, Otávio Matos Tavares, Lasier Silveira Lima
DOI: 10.1590/S1516-35982009000500004
This work used the necessary time (days) for a completely elongation of new leaves, i.e., 1.5-2.0; 2.5-3.0 and 3.5-4.0 new leaves completely elongated in order to determine the rest period (RP) between grazing in Pearl millet (Pennisetum glaucum (L.)R. Br.). The experiment was carried out as a completely randomized design with four replications (paddocks). Evaluations were performed for: number of live leaves/tiller (NAL); final length blade (FLB); blade/sheath and culm ratio (B/S+C); basal tiller density (BTD) and aerial tiller density […]
Keywords: blade; defoliation frequency; number of alive leaves; number of alive leaves; tillering