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| Difante,Gelson dos Santos; Euclides,Valéria Pacheco Batista; Nascimento Júnior,Domicio do; Silva,Sila Carneiro da; Torres Júnior,Roberto Augusto de Almeida; Sarmento,Daniel Oliveira de Lucena. |
| The objective of this experiment was to evaluate the ingestive behaviour, herbage intake and grazing efficiency of beef cattle steers grazing on Panicum maximum Jacq. cv. Tanzania subjected to different rotational stocking intensities. Treatments corresponded to two post-grazing conditions (residues of 25 and 50 cm) associated with a pre-grazing condition of 95% sward canopy light interception during regrowth (LI). The grazing time increased linearly with the duration of the occupation period (475 to 630 minutes/day). On paddocks grazed down to a residue of 25 cm, the bite rate increased linearly along the occupation period, with an average of 42.5 bites/minute. On paddocks grazed down to a residue of 50 cm, the bite rate was stable and equal to 39... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grazing management; N-alkanes; Panicum maximum; Post-grazing height. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982009000600005 |
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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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| Giacomini,Alessandra Aparecida; Silva,Sila Carneiro da; Sarmento,Daniel Oliveira de Lucena; Zeferino,Cauê Varesqui; Souza Júnior,Salim Jacaúna; Trindade,Júlio Kuhn da; Guarda,Vítor del'Alamo; Nascimento Júnior,Domicio do. |
| Grazing strategies alter sward leaf area patterns of growth, affecting herbage accumulation and utilisation. The objective of this experiment was to evaluate the growth of marandu palisadegrass (Brachiaria brizantha cv. Marandu) swards subjected to strategies of intermittent stocking. The experiment was carried out in Piracicaba, São Paulo, Brazil, from October/2004 to September/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. The response variables evaluated were: crop growth rate, relative growth rate, net assimilation rate, leaf area ratio and leaf weight ratio. In early and late spring, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachiaria brizantha; Canopy light interception; Regrowth; Grazing management. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162009000600003 |
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