A5044098892- Ruminant Nutrition and Digestive Physiology
- Soil Management and Crop Yield
- Agroforestry and silvopastoral systems
- Growth and nutrition in plants
- Pasture and Agricultural Systems
- Genetic and phenotypic traits in livestock
- Forest ecology and management
- Turfgrass Adaptation and Management
- Rural Development and Agriculture
- Plant Taxonomy and Phylogenetics
- Rangeland Management and Livestock Ecology
- Environmental and biological studies
- Agronomic Practices and Intercropping Systems
- Leaf Properties and Growth Measurement
- Rangeland and Wildlife Management
- Genetics and Plant Breeding
- Agriculture Sustainability and Environmental Impact
- Peanut Plant Research Studies
- Soil Carbon and Nitrogen Dynamics
- Agriculture and Rural Development Research
- Crop Yield and Soil Fertility
- Agricultural and Food Sciences
- Botany and Plant Ecology Studies
- Bioenergy crop production and management
- Meat and Animal Product Quality
Universidade de São Paulo
2014-2024
Secretaria de Agricultura e Abastecimento
2020-2023
Universidade Brasil
2008-2021
Forest Science and Research Institute
2014
Methodist University of Piracicaba
1999-2012
National Council for Scientific and Technological Development
2007-2009
Universidad San Pedro
2008
Universidade Federal de Viçosa
2007
Grazing management has been the focus of research with forage plants in Brazil for many years. Only last two decades, however, significant changes and advances have occurred regarding understanding key factors processes that determine adequate use tropical pastures. The objective this review is to provide an historical overview grasslands Brazil, highlighting advances, trends, results, as well describe current state art identify future perspectives challenges. information presented a...
O objetivo deste trabalho foi avaliar as características estruturais e a produção de forragem do capim-tanzânia (Panicum maximum Jacq. cv. Tanzânia) sob condições pastejo rotativo, em um Latossolo Vermelho distrófico, num experimento realizado Campo Grande, MS. Os tratamentos corresponderam combinações entre três pré duas pós-pastejo, foram alocados às unidades experimentais segundo delineamento blocos completos casualizados, com repetições arranjo fatorial 3x2. As pré-pastejo 90, 95 100%...
Este trabalho foi realizado para verificar a existência de relação entre tamanho e número perfilhos em pastos capim-marandu testar se ajustes relacionados variações índice área foliar (IAF), foliar:volume por perfilho (R) densidade aparente na equação predição da resposta permitiriam explicar eventuais desvios inclinação teórica predita. Foram avaliadas quatro condições (10, 20, 30 40 cm altura), mantidas constantes bovinos regime lotação contínua taxa variável. O delineamento experimental o...
Latin America and Caribbean (LAC) is a developing region characterized for its importance global food security, producing 23 11% of the beef milk production, respectively. The region's ruminant livestock sector however, under scrutiny on environmental grounds due to large contribution enteric methane (CH4) emissions influence climate change. Thus, identification effective CH4 mitigation strategies which do not compromise animal performance urgently needed, especially in context Sustainable...
O manejo do pastejo tem sido uma preocupação constante da pesquisa com plantas forrageiras no Brasil há muitos anos. No entanto, foi durante a última década que ocorreram grandes mudanças e um avanço significativo na compreensão de fatos processos determinantes correta utilização das tropicais em pastagens. presente texto por objetivo traçar breve histórico pastagens país, apontando sua evolução, tendências, resultados épocas transição. Isso colocará o conhecimento disponível perspectiva...
Grazing strategies promote changes in sward structure that can affect patterns of herbage accumulation and flexibility to management. This experiment evaluated structural characteristics Mombaça guinea grass (Panicum maximum Jacq. cv. Mombaça) subjected rotational stocking managements. Treatments involved grazing when swards reached either 95 or 100% interception the incident light (LI), post-grazing heights 30 50 cm, were allocated 2,000 m² paddocks according a randomised complete block...
SUMMARY The ability to adapt a range of edaphic conditions favours the widespread use marandu palisade grass in high as well low input systems animal production Brazil. However, little information exists regarding influence grazing management practices on sward structure and carry-over effects responses. present experiment was planned evaluate behaviour, herbage intake (HI) nutritive value, accumulation body weight gain (BWG) beef cattle heifers subjected intensities continuous stocking...
O objetivo deste trabalho foi avaliar o efeito de estratégias pastejo rotativo sobre a composição morfológica da forragem consumida por bovinos corte em pastos Brachiaria brizantha cv. Marandu. Os pastejos foram realizados sempre que dossel atingia 95 ou 100% intercepção luminosa (IL) até as alturas pós-pastejo 10 e 15 cm. Foi avaliada das extrusas coletadas animais fistulados no esôfago três etapas ao longo do rebaixamento dos pastos. À medida progrediu, proporção lâminas foliares na...
O objetivo deste trabalho foi avaliar o desempenho agronômico do capim-xaraés [Brachiaria brizantha (A. Rich.) Stapf. cv. Xaraés] em resposta a três estratégias de pastejo rotacionado: uma baseada no calendário (pastejo cada 28 dias) e duas função da interceptação luminosa (IL) pelo dossel iniciado 95% ou 100% IL). No tratamento IL, altura média pré-pastejo 29,5 cm; 41,6 cm dias, 34,2 cm. A pós-pastejo 14,6 todos os tratamentos, correspondeu um índice área foliar médio 0,73, IL 42% ângulo...
Grazing strategies alter sward leaf area patterns of growth, affecting herbage accumulation and utilisation. The objective this experiment was to evaluate the growth marandu palisadegrass (Brachiaria brizantha cv. Marandu) swards subjected intermittent stocking. carried out in Piracicaba, São Paulo, Brazil, from October/2004 September/2005. Swards were grazed at 95 100% canopy light interception (LI) post-grazing heights 10 15 cm, following a 2 × factorial arrangement with four replications...
Knowledge regarding morphogenetic characteristics has contributed to the understanding of plant responses variations in climatic conditions and management practices. However, original framework been developed for temperate grass species, indicates no ontogenetic effect on expression traits. Similar information tropical species is scarce, but not less important. This experiment aimed at evaluating influence tiller age continuously stocked marandu palisadegrass swards maintained 30 cm...
Forage species tolerate varying degrees of shading. In agrosilvopastoral systems, forage plants are able to adjust and partially compensate growth reduction under light stress. These adjustments change morphological proportions composition along the vertical profile sward. Sward is directly related animal intake behavior performance. One objective this study was evaluate effects different tree shading levels on sward structure Piatã palisadegrass cultivated in a crop-livestock-forestry...
Objetivou-se comparar a dinâmica do acúmulo de forragem em pastos capim-xaraés [Brachiaria brizantha (A. Rich.) Stapf. cv. Xaraés] submetidos três estratégias desfolhação intermitente, uma baseada no calendário (pastejo cada 28 dias) e duas na interceptação luminosa (IL), aos 95 ou 100% luminosa. A massa (MF) pré-pastejo foi maior estratégia luz. Os piquetes pastejados 95% luz dias apresentaram menores massas não diferiram entre si primavera. O pastejo aumentou proporção folhas, apesar das...
The objective of this experiment was to evaluate the ingestive behaviour, herbage intake and grazing efficiency beef cattle steers on Panicum maximum Jacq. cv. Tanzania subjected different rotational stocking intensities. Treatments corresponded two post-grazing conditions (residues 25 50 cm) associated with a pre-grazing condition 95% sward canopy light interception during regrowth (LI). time increased linearly duration occupation period (475 630 minutes/day). On paddocks grazed down...
Understanding of the morphogenetic characteristics allows comprehension aspects related to form and function forage plants, providing opportunities identify potentially high productive plants distinct defoliation management requirements. The objective this experiment was carry out a comparative study ten tropical grasses using structural variables. Treatments corresponded Panicum genus (P. maximum cultivars Tanzânia Mombaça) Brachiaria (B. brizantha Piatã, Marandu, Xaraés, Capiporã Arapoty;...
The objective of this experiment was to evaluate the structural characteristics young, mature and old tillers on continuously stocked marandu palisade grass maintained at 30 cm fertilized with nitrogen. Treatments corresponded three nitrogen application rates (150, 300 450 kg/ha N) plus control (no fertilization) were assigned experimental units (1,200-m² paddocks) according a completely randomized block design, four replications. Measurements performed during fall/winter 2007 summer 2008....
O objetivo deste trabalho foi avaliar metas de manejo para capim-marandu (Urochloa brizantha cv. Marandu) submetido a pastejo rotativo e doses nitrogênio, janeiro 2009 abril 2010. Os tratamentos consistiram da combinação duas frequências (altura pré-pastejo 25 35 cm) fertilizante nitrogenado (50 200 kg ha-1 por ano) em delineamento blocos ao acaso com arranjo fatorial 2x2 quatro repetições. A altura pós-pastejo estipulada 15 cm. Maiores valores ganho peso médio animal dia (0,629 0,511 dia-1)...
Desenvolveu-se este estudo com o objetivo de avaliar acúmulo forragem e as características morfogênicas estruturais do capim-marandu submetido a combinações alturas intervalos corte. O experimento foi realizado no período agosto 2003 abril 2004. Os tratamentos corresponderam entre duas (15 30 cm) três corte (tempo correspondente para aparecimento três, quatro cinco folhas por perfilho) foram alocados às unidades experimentais em arranjo fatorial 2 × 3 delineamento blocos completos...
The objective of this study was to evaluate animal performance in Mombaça guineagrass (Panicum maximum Jacq.) pastures under intermittent grazing associated with two post-grazing heights (30 and 50 cm) a pre-grazing height 90 cm. A completely randomised block experimental design employed, treatments three replicates. were evaluated pre- grazing, determine the herbage mass, percentage leaf, stem dead material nutritive value. stocking rate (expressed unit, AU = 450 kg liveweight) adjusted...
Grazing management strategies affect not only herbage accumulation but also the efficiency of grazing. This study aimed to evaluate (leaf, stem and dead material), grazing losses mulato grass (a Brachiaria ruziziensis × brizantha cv. Marandu hybrid) subjected rotational stocking management. Treatments consisted combinations between two post-grazing heights (15 20 cm) pre-grazing conditions (95 % maximum canopy light interception (LI)) assigned experimental units (1200-m² paddocks) according...
Abstract It is well reported in the scientific literature that pastures can have similar net forage accumulation when managed with contrasting structures. However, we hypothesized dynamics of grazed swards linked to seasonal‐environmental conditions. Marandu palisadegrass ( Brachiaria brizantha [Hochst. ex A. Rich.] was used as species model. The experimental treatments were four grazing heights (10, 20, 30 and 40 cm) allocated units according a randomized complete block design replicates...