Avaliação da Brachiaria brizantha cv. marandu em sistemas silvipastoris

Moreira, Guilherme Rocha; Saliba, E. O. S.; Maurício, Rogério Martins; Sousa, Luciano Fernandes; Figueiredo, Mauro Pereira de; Gonçalves, Lúcio Carlos; Rodríguez, N. M.

doi:10.1590/s0102-09352009000300026

Cited by 13 publications

(8 citation statements)

References 16 publications

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“…Similar results were recorded by Moreira et al (2009), who assessed the influence of Ipê Felpudo and Aroeira trees on Marandu grass in situ dry matter degradability, and found higher CP content under the shade of the trees in comparison to treatments under full sun light; results similar to those recorded in the current study were also found by Paciullo et al (2007).…”

Section: Resultssupporting

confidence: 91%

Beef cattle production in established integrated systems

Gamarra

Morais

Almeida

et al. 2017

SCA

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The aim of the current study is to assess three integrated systems presenting different eucalyptus tree densities due to animal and forage production. The following integrated systems were assessed: croplivestock-forest with 357 eucalyptus trees ha -1 (ICLF1); crop-livestock-forest with 227 eucalyptus trees ha -1 (ICLF2); and crop-livestock with 5 remnant native trees ha -1 (ICL). The randomized block experimental design was applied in a split-plot scheme with four replicates. The Average Daily Gain (ADG, g animal -1 day -1 ) and the live-weight gain per area (LWG, kg ha -1 ) were applied to analyze animal performance, which was set by weighing the animals every 28 days (the animals previously fasted for 16h). Forage yield was higher in ICL during fall and winter; in summer, it did not differ from ICLF2. There was no forage yield difference between the ICL and ICLF2 systems in any of the assessed seasons; summer was more productive in ILPF1 than other seasons. The highest leaf crude protein contents (CP) in summer was recorded in systems ICLF1 and ICLF2, and the highest value recorded in fall was found in ILPF1; the lowest was found in ILP. On the other hand, the highest leaf NDF contents in summer were found in ILP. The highest ADG were found in summer. The highest LWG values recorded for the ICL and ICLF2 systems were collected in summer and fall; there was no difference in any of the three systems in winter. The LWG was higher in all system in summer. The ICLF2 emerged as the system (with trees) most appropriate for beef cattle production. Despite the shading interference on forage production, such condition is compensated by the best nutritional contents such as CP. The ICLF2 system allowing an annual LWG of 83% in relation to the ICL system during the fifth year of establishment of the systems. Key words: Piatã grass. Tree density. Eucalyptus. Crop-livestock-forest integration. Forage yield. ResumoObjetivou-se avaliar três sistemas de integração com diferentes densidades de árvores de eucalipto quanto à produção forrageira e animal. Foram avaliados os sistemas de integração: lavoura-pecuária-floresta, com 357 árvores de eucalipto ha -1 (ILPF1); lavoura-pecuária-floresta, com 227 árvores de eucalipto ha -1 (ILPF2) e lavoura-pecuária, com cinco árvores nativas remanescentes ha -1 (ILP avaliação da forrageira foi adotado o delineamento experimental em blocos casualizados, em esquema de parcelas (ILPF1, ILPF2 e ILP) subdivididas (verão, outono e inverno), com quatro repetições. Para avaliação do desempenho animal, foi utilizado o ganho médio diário (GMD) e ganho de peso vivo por área (GPV), obtidos por pesagens a cada 28 dias com jejum prévio de 16 horas. A produção forrageira foi maior no ILP nas três estações mas, no verão, não diferiu do ILPF2. De maneira geral, os maiores teores de proteína bruta foram encontrados no sistema ILPF1 e os maiores teores de FDN, no sistema ILP. Os maiores GMD (g animal -1 dia -1 ) foram no verão. Foram observados maiores GPV (kg ha -1 ) no verão e outono nos sistemas de...

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Section: Resultssupporting

confidence: 91%

Beef cattle production in established integrated systems

Gamarra

Morais

Almeida

et al. 2017

SCA

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“…This result is surprising, regarding the variation of the nutritional value of grass in SPS exposed to shading as compared to monoculture (Paciullo et al, 2007;Soares et al, 2004). According to Moreira et al (2009), shaded plants present more levels of crude protein as the shading results in a larger cell size of the plants, increasing its cellular content and, consequently, crude protein.…”

Section: Resultsmentioning

confidence: 99%

Forage intake and performance of cattle in silvo-pastoral systems and monoculture of Marandu in Pre-Amazon region

Santos¹,

Rodrigues²,

Costa³

et al. 2016

Afr. J. Agric. Res.

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“…Outro fator que pode ter influenciado na resposta para essa variável é que a gramínea em sistema sombreado tende alocar fotoassimilados para o perfilho em detrimento à raiz; esse maior favorecimento acarreta em um aumento no peso da massa por perfilho, podendo influenciar na resposta de produção de MS (PACIULLO et al, 2008). O mesmo autor, em seu trabalho com sombreamento, concluiu que a falta de produção de perfilhos é compensada pelo alongamento de colmo nos níveis de sombreamento mais intenso.…”

Section: Resultsunclassified