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| Registros recuperados: 20 | |
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| ECHEVERRRIA, J. R.; EUCLIDES, V. P. B.; SBRISSIA, A. F.; MONTAGNER, D. B.; BARBOSA, R. A.; NANTES, N. N.. |
| O objetivo deste trabalho foi avaliar o acúmulo de forragem e o valor nutritivo do híbrido de Urochloa 'BRS RB331 Ipyporã' (Urochloa brizantha x Urochloa ruziziensis) submetido à pastejo intermitente. Os tratamentos corresponderam às combinações entre as condições de pré?pastejo, interceptação de 95% da luz incidente e máxima interceptação de luz, e as de pós?pastejo, 10 e 15 cm de altura de resíduo, em delineamento de blocos ao acaso, em arranjo fatorial 2x2, com quatro repetições. Pastos manejados com 95% de interceptação da luz apresentaram maior taxa de acúmulo de forragem, proporção de folhas, relação folha:colmo, teor de proteína bruta e densidade populacional de perfilhos basilares (DPPb), em comparação àqueles manejados com máxima interceptação da... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Altura do dossel; Densidade populacional de perfilhos; Híbrido de braquiária; Manejo de pastejo; Titler population density; Sward height; Brachiaria hybrid; Brachiaria brizantha; Brachiaria ruziziensis; Urochloa brizantha; Urochloa ruziziensis; Grazing management. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/1061646 |
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| BARBOSA, R.A.; NASCIMENTO JÚNIOR, D. do; EUCLIDES, V.P.B.; SILVA, S.C. da; ZIMMER, A.H.; TORRES JÚNIOR, R.A. de 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 de pastejo rotativo, em um Latossolo Vermelho distrófico, num experimento realizado em Campo Grande, MS. Os tratamentos corresponderam a combinações entre três condições de pré e duas condições de pós-pastejo, e foram alocados às unidades experimentais segundo um delineamento de blocos completos casualizados, com três repetições e arranjo fatorial 3x2. As condições de pré-pastejo de 90, 95 e 100% de interceptação de luz (IL) foram atingidas consistentemente com alturas de dossel em torno de 60, 70 e 85 cm, respectivamente. Pastejos iniciados com 90% de IL resultaram em maior número de ciclos de... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Panicum maximum; Altura do dossel; Interceptação de luz; Acúmulo de forragem; Manejo do pastejo; Sward height; Light interception; Herbage accumulation; Grazing management. |
| Ano: 2007 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/123577 |
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| OLIVEIRA, L. B. de; OLIVEIRA, L. E. V.; VASCONCELOS, E. C. G.; MESQUITA, T. M. O.; CAVALCANTE, A. C. R.; LEITE, E. R.. |
| Resumo: Fatores climáticos como temperatura têm grande importância no crescimento das plantas forrageiras, influenciando o acúmulo de forragem a distribuição estacional da produção. O objetivo foi quantificar características estruturais do capim-tanzânia em diferentes somas térmicas. O experimento foi conduzido em área semiárida, os tratamentos foram as somas térmicas: 250ºC, 500ºC, 750ºC e 1000ºC. As variáveis analisadas foram: altura do pasto, índice de área foliar, interceptação da radiação fotossinteticamente ativa, massa de forragem total e todos os seus componentes (folha, colmo e material senescente). As temperaturas médias foram de 27 a 29º C, sendo as máximas de 32º C a 37º C e mínimas de 21º C a 22º C O delineamento experimental foi em blocos ao... |
| Tipo: Artigo em anais de congresso (ALICE) |
Palavras-chave: Massa de forragem; Forage mass; Semiárido; Altura do pasto; Sward height; Panicum maximum; Temperatura; Variedade Tanzânia; Pastagem; Irrigação; Pasture; Irrigation; Pastures. |
| Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/975258 |
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| Santos, Manoel Eduardo Rozalino; Santos, Anselmo de Deus; Fonseca, Dilermando Miranda da; Sousa, Braulio Maia de Lana; Gomes, Virgilio Mesquita; Sousa, Diogo Olímpio Chaves de. |
| The effects of four supplement doses (0, 1, 2 and 3 kg animal-1 day-1) on pasture characteristics and on cattle production on Brachiaria decumbens cv. Basilisk pastures in continuous stocking with variable stocking rate were assessed. Experimental design comprised completely randomized blocks with two replications. Concentrate supplementation did not influence mass (4141 kg ha-1 of DM) and production rate of forage (97.6 kg ha-1 day-1 of DM), morphological components and nutrition value in hand-plucked forage. Similarly, the number of live (1.607 tillers m-²) and dead (636 tillers m-²) tillers was not affected by concentrate supplementation. There were linear increases in animal performance (from 0.70 to 1.13 kg animal-1 day-1), stocking rate (1.9 to 3.8... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.04.00-8 Brachiaria decumbens; Sward height; Continuous stocking; Forage production; Animal selectivity. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/29104 |
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| Hernandez-Mendo,O.; Leaver,J.D.. |
| The preference of lactating dairy cows for grazed herbage or maize silage (MS), simultaneously offered ad libitum in the field, was examined at two sward heights (SH 4-6 and 8-10cm) and two concentrate levels (CL 0 and 6kg day-1) in a 2x2 factorial arrangement within a completely randomised experimental design. The experiment lasted 35 days and was carried out in spring using 24 multiparous Holstein Friesian cows. On average, the cows proportionately spent more time grazing than eating MS (0.85:0.15) and even though the higher rate of intake (RI) of dry matter (DM) of MS compared with grazed herbage (76 versus 26g DM min-1), the proportion of total DM intake as herbage was higher compared to that of MS (0.56:0.44). The higher crude protein and low fibre... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Milking cow; Diet selection; Concentrate; Sward height. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000500019 |
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| Giacomini,Alessandra Aparecida; Silva,Sila Carneiro da; Sarmento,Daniel Oliveira de Lucena; Zeferino,Cauê Varesqui; Trindade,Júlio Kuhn da; Souza Júnior,Salim Jacaúna; Guarda,Vítor del'Alamo; Sbrissia,André Fischer; Nascimento Júnior,Domicio do. |
| Leaf area index is the main sward characteristic related to the processes of light interception and competition in plant communities. The objective of this experiment was to quantify and evaluate the composition of the leaf area on tillers of marandu palisadegrass (Brachiaria brizantha cv. Marandu) subjected to strategies of intermittent stocking. The experiment was carried out in Piracicaba, state of São Paulo, Brazil, from October/2004 to December/2005. Swards were grazed at 95 and 100% canopy light interception (LI) to post-grazing heights of 10 and 15 cm, following a 2 ' 2 factorial arrangement with four replications in a randomised complete block design. Estimates were made of sward leaf area index, site filling, specific leaf area and the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria brizantha; Aerial tillers; Basal tillers; Site filling; Sward height. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000600002 |
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| BRAGA, G.J.; MELLO, A.C.L. de; PEDREIRA, C.G.S.; MEDEIROS, H.R. de.. |
| O objetivo deste trabalho foi avaliar o efeito da intensidade de pastejo na taxa diária de acúmulo de forragem e na fotossíntese foliar líquida do capim-tanzânia, em pastagens manejadas sob lotação intermitente. O experimento foi conduzido de novembro de 1999 a outubro de 2000, em delineamento de blocos ao acaso, com quatro repetições. Os tratamentos experimentais foram três quantidades de massa de forragem verde remanescente (1.000, 2.500 e 4.000 kg ha-1), aplicados em ciclos de pastejo de 36 dias (33 de descanso e 3 de ocupação). A taxa diária de acúmulo de forragem não sofreu efeito da intensidade de pastejo e, com exceção no inverno, foi mais elevada nos primeiros 11 dias da rebrotação e nos períodos com temperaturas mais elevadas. A fotossíntese... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Panicum maximum; Altura do dossel; Estrutura do dossel; Índice de área foliar; Massa de forragem; Sward height; Sward structure; Leaf area index; Forage mass. |
| Ano: 2009 |
URL: http://www.alice.cnptia.embrapa.br/handle/doc/125749 |
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| Sousa,Braulio Maia de Lana; Nascimento Júnior,Domicio do; Silva,Sila Carneiro da; Monteiro,Hélida Christhine de Freitas; Rodrigues,Carlindo Santos; Fonseca,Dilermando Miranda da; Silveira,Márcia Cristina Teixeira da; Sbrissia,André Fischer. |
| This work was performed aiming to evaluate the morphogenetic and structural characteristics of Andropogon gayanus cv. Planaltina species submitted to three cutting heights (20, 27 and 34 cm). The three cutting heights were allocated in experimental units (12 m²) in a complete randomized block design with three replications. The cuts were done when the light interception by the sward reached 95%. At this moment, the sward height revealed itself constant with values close to 50 cm. The lowest cutting height (20 cm) influenced negatively the final leaf blade length, the number of live leaves, the leaf lifespan, the stem elongation rate and the tiller population density, and it influenced positively the phyllochron and the leaf senescence rate. Probably, cuts... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Andropogon gayanus; Ecophysiology; Light interception; Morphogenesis; Sward height. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001000006 |
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| Barbosa,Rodrigo Amorim; Nascimento Júnior,Domicio do; Vilela,Hélio Henrique; Sousa,Braulio Maia de Lana; Silva,Sila Carneiro da; Euclides,Valéria Pacheco Batista; Silveira,Márcia Cristina Teixeira da. |
| The objective of this research was to assess morphogenetic and structural characteristics of tillers of guinea grass cv. Tanzania at different ages. The pastures of guinea grass were managed in six pasture conditions related to the combination of three frequencies (90, 95, and 99% light interception) and two post-grazing heights (25 and 50 cm). In these six pastures conditions, three tiller ages were evaluated (young, mature, and old). The design was of completely randomized block with three replications. Young tillers exhibited higher leaf appearance rate and leaf elongation rate and, consequently, higher final leaf length and number of live leaves than mature and old tillers, regardless of the pasture condition. On pastures managed with 90 or 95% light... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grazing management; Light interception; Panicum maximum; Sward height. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700005 |
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| Sousa,Braulio Maia de Lana; Nascimento Júnior,Domicio do; Rodrigues,Carlindo Santos; Monteiro,Hélida Christhine de Freitas; Silva,Sila Carneiro da; Fonseca,Dilermando Miranda da; Sbrissia,André Fischer. |
| The objective of this work was to evaluate the morphogenetic and structural characteristics of xaraes palisadegrass submitted to three cutting heights (15, 20 and 25 cm) when the sward reached 95% of light interception during regrowth. The experiment was carried out according to a complete randomized block design with three replications. The sward surface height under the cutting condition of 95% of light interception was very homogeneous with values around 30 cm. The increase in cutting height reduced the leaf elongation rate and the number of live leaves but increased stem elongation rate. As the cutting criterion was the same, before the intense competition for light, the variation in the cutting severity had a small influence on the morphogenetic and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria brizantha; Ecophysiology; Grazing management; Light interception; Morphogenesis; Sward height. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000100008 |
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| Mesquita,Priscila de; da Silva,Sila Carneiro; Paiva,Adenilson José; Caminha,Fábio Olegário; Pereira,Lilian Elgalise Techio; Guarda,Vítor Del'Álamo; Nascimento Júnior,Domicio do. |
| The concept of sward target has been used recently to characterise grazing management practices, but its efficiency to monitor and control sward structure questioned since it corresponds to a single sward structural feature, usually sward surface height. The objective of this experiment was to evaluate sward structure and its patterns of variation throughout the year on continuously stocked marandu palisadegrass swards maintained at 30 cm and subjected to contrasting rhythms of growth from January 2007 to April 2008. Treatments corresponded to three nitrogen application rates (150, 300 and 450 kg ha-1 of N) plus the control (no N fertilisation), and were allocated to experimental units according to a complete randomised block design, with four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria brizantha; Nitrogen; Sward structure; Sward height; Grazing management. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000100004 |
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| Braga,Gustavo José; Pedreira,Carlos Guilherme Silveira; Herling,Valdo Rodrigues; Luz,Pedro Henrique de Cerqueira; Lima,César Gonçalves de. |
| In ruminant-forage systems herbage allowance (HAL) has a major impact on grazing intensity and sward structure, affecting animals, plants, and ultimately, pasture yield. Data on HAL responses of tropical cultivated pastures are scarce and this information may be useful in optimizing pasture utilization. The objective of this study was to describe and contrast sward structure and herbage accumulation responses of 'Marandu' palisadegrass [Brachiaria brizantha (A.Rich.) Stapf] pastures to HAL during two grazing seasons (warm-rainy season of 2003 and 2004). Treatments were four daily HAL levels, 5, 10, 15 and 20 kg herbage mass per 100 kg live weight (%) in a rotational stocking system with 35 days of grazing cycle (28-day rest; 7-d grazing). Post-graze swards... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herbage accumulation; Sward height; Light interception; Forage mass. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162006000200003 |
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| Janusckiewicz,E.R.; Casagrande,D.R.; Raposo,E.; Bremm,C.; Reis,R.A.; Ruggieri,A.C.. |
| ABSTRACT This study evaluated how changing the structure of Brachiaria brizantha cv. Marandu pasture under different forage allowances (FA) of 4, 7, 10 and 13kg DM/100kg BW (body weight) affected animal behavior over a two-year evaluation period. The experiment was conducted as a randomized block design with three replications (paddock). Sward height, total forage, and stem mass were lower for pastures managed with lower FA. Lower leaf mass was observed for lower FA in the second year. In hand-plucked samples, leaf and stem percentages remained unchanged in the morning but leaf percentage increased while stems decreased in the afternoon. Permanence time decreased linearly with increasing FA. In turn, a quadratic effect was observed for displacement rate.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bite rate; Displacement; Forage mass; Sward height. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000602009 |
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| Registros recuperados: 20 | |
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