Forage Structure
Mostrando 13-24 de 52 artigos, teses e dissertações.
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13. Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture
Gradual reduction of legumes in mixed tropical pastures requires periodic oversowing. Exploiting the carrying capacity of grass for an extra year after the disappearance of legumes can be economically advantageous to the farmer. This study aimed to evaluate the productivity of Xaraés palisadegrass (Brachiaria brizantha) pastures in response to its historica
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-12
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14. Sward structure and livestock performance in guinea grass cv: Tanzania pastures managed by rotational stocking strategies
Grazing strategy is a key element in the determination of sward structure, herbage nutritive value and animal performance. We aimed to compare the herbage characteristics and performance of livestock in pastures of Panicum maximum cv. Tanzania managed, using two rotational stocking strategies, which provided either a fixed-length rest period (FRP) of 35 days
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-12
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15. Structural characteristics and forage mass of Tifton 85 pastures managed under three post-grazing residual leaf areas
The experiment was carried out on Cynodon spp cv. Tifton 85 pastures grazed by sheep under rotational stocking, with the objective of evaluating the structural characteristics as well as the forage mass of the pastures subjected to three grazing intensities in successive cycles. Treatments were composed of three residual leaf area indices (rLAI; 2.4; 1.6 and
R. Bras. Zootec.. Publicado em: 2013-04
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16. Floristic and vegetation structure of a grassland plant community on shallow basalt in southern Brazil
Few studies have adequately described the floristic and structural features of natural grasslands associated with shallow basalt soils in southern Brazil. This study was carried out on natural grazing land used for livestock production in the municipality of Santana do Livramento, in the Campanha region of the state of Rio Grande do Sul, Brazil. The aim of t
Acta Bot. Bras.. Publicado em: 2013-03
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17. ESTUDO DA RECRIA DE NOVILHAS DE CORTE EM PASTAGENS CULTIVADAS DE VERÃO / STUDY OF BEEF HEIFERS REARING ON WARM-SEASON PASTURES
Heifers rearing is a determinant step of efficiency in beef cattle production systems on pastures. Several experiments have tested alternative uses for tropical grasses to heifers rearing. In order to summarize results and making not visible relationships evident in these individual experiments an analysis was performed in a set of data from six experiments
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/03/2012
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18. El cultivo de alfalfa utilizando agua de perforación, agua residual urbana y precipitaciones
The objective of this study was to analyse the production of alfalfa biomass, the efficiency of water use and the nutritional value of forage, inside an irrigation structure of an experimental facility that uses treated urban wastewater, artesian well water and rainfall, at the campus of the Universidad National de Rio Cuarto (Córdoba-Argentina). The irriga
Rev. bras. eng. agríc. ambient.. Publicado em: 2012-12
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19. Using genetic diversity information to establish core collections of Stylosanthes capitata and Stylosanthes macrocephala
Stylosanthes species are important forage legumes in tropical and subtropical areas. S. macrocephala and S. capitata germplasm collections that consist of 134 and 192 accessions, respectively, are maintained at the Brazilian Agricultural Research Corporation Cerrados (Embrapa-Cerrados). Polymorphic microsatellite markers were used to assess genetic diversity
Genet. Mol. Biol.. Publicado em: 13/11/2012
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20. Forage mass and structure of piatã grass deferred at different heights and variable periods
The objective of this study was to determine the deferment period and the most adequate initial sward height of Brachiaria brizantha cv. Piatã for deferment in the region of Viçosa, Minas Gerais. For so, the following characteristics were evaluated: masses and bulk density of forage and its morphological components, light interception by the sward, leaf ar
Revista Brasileira de Zootecnia. Publicado em: 2012-07
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21. Piata palisadegrass deferred in the fall: effects of initial height and nitrogen in the sward structure
The objective of this study was to evaluate the mass of the forage and of the morphological components, and the sward structure in Piata palisadegrass (Brachiaria brizantha cv. Piata) deferred in function of different initial heights and nitrogen levels. Two levels of nitrogen (75 and 150 kg/ha) and one control without fertilization associated to three initi
Revista Brasileira de Zootecnia. Publicado em: 2012-05
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22. Forage yield and nutritive value of Tanzania grass under nitrogen supplies and plant densities
The objective of this experiment was to evaluate the nitrogen and plant density influence on the yield, forage dissection and nutritive value of Tanzania grass (Panicum maximum Jacq.). The design was of completely randomized blocks with three replications in a factorial arrangement with four nitrogen levels (0, 80, 160 or 320 kg/ha N) and three plant densiti
Revista Brasileira de Zootecnia. Publicado em: 2012-04
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23. Oferta de forragem em pastagem natural : estrutura do pasto e a taxa de ingestão de novilhas de corte / Forage allownce in natural grasslands: sward structure and intake rate of beef heifers
O trabalho foi conduzido entre novembro/2008 e fevereiro/2010 numa pastagem natural submetida, desde 1986, a diferentes intensidades de pastejo. O objetivo foi avaliar o efeito da intensidade de pastejo sobre a estrutura da vegetação e seu reflexo sobre a seletividade e taxa de ingestão de novilhas de corte. Os tratamentos são níveis de oferta de forrag
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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24. Estrutura do dossel, demografia do perfilhamento e acúmulo de forragem em pastos de Brachiaria humidicola submetidos a regimes de lotação intermitente / Sward structure, tillering demographics and forage accumulation in Brachiaria humidicola pastures under continuous stocking.
O objetivo deste experimento foi avaliar as características estruturais do dossel, a demografia do perfilhamento e o acúmulo de forragem em pastos de Brachiaria humidicola cv. Comum manejados sob lotação intermitente. O experimento foi conduzido no setor de Forragicultura do Departamento de Zootecnia, na Universidade Federal de Viçosa, Viçosa-MG, de de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/12/2011