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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
12/12/2024 |
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Data da última atualização: |
12/12/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CRUZ, P. J. R. da; SILVA, D. V.; LIMA, T. B. G. de; ALVES, G. C.; HOMEM, B. G. C.; ALVES, B. J. R.; BODDEY, R. M.; SBRISSIA, A. F.; CASAGRANDE, D. R. |
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Afiliação: |
PRISCILA JUNIA RODRIGUES DA CRUZ, RANGE CATTLE RESEARCH AND EDUCATION CENTER; DENISE VIEIRA DA SILVA, UNIVERSIDADE FEDERAL DE LAVRAS; ITALO BRAZ GONÇALVES DE LIMA, UNIVERSITY OF ILLINOIS; GUSTAVO CAMPOS ALVES, UNIVERSIDADE FEDERAL DE LAVRAS; BRUNO GROSSI COSTA HOMEM, UNIVERSIDADE FEDERAL DE VIÇOSA; BRUNO JOSE RODRIGUES ALVES, CNPAB; ROBERT MICHAEL BODDEY, CNPAB; ANDRE FISCHE SBRISSIA, UNIVERSIDADE ESTADUAL DE SANTA CATARINA; DANIEL RUME CASAGRANDE, UNIVERSIDADE FEDERAL DE LAVRAS. |
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Título: |
Marandu palisade grass-forage peanut mixed pastures: Forage intake, animal behaviour, and canopy structure as affected by grazing intensities. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Grass and Forage Science, First published: 02 September 2024. |
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ISSN: |
0142-5242 |
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DOI: |
https://doi.org/10.1111/gfs.12688 |
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Idioma: |
Inglês |
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Conteúdo: |
Integrating forage legumes into grasslands offers numerous ecosystem services. However, the management of grass-legume pastures is challenging because the interaction between the defoliation frequency and severity may affect the legume persistence and forage intake by grazing animals. This 2-year study evaluated the most effective grazing intensity to increase forage intake while maintaining a balanced legume proportion in tropical pastures consisting of Brachiaria brizantha and Arachis pintoi. Three treatments (grazing intensities) were assessed: severe, moderate, and low, corresponding to stubble heights of 10, 15, and 20 cm, respectively, and a pre-grazing height of 25 cm. Two purebred Tabapua heifers were used for each treatment, and additional put-and-take animals were introduced, as required. Canopy structure, grazing behaviour, nutritive value, and forage intake were evaluated. The legume proportion in herbage mass remained consistent across all intensities, averaging 35% pre- and 32% post-grazing. The grazing duration remained consistent across treatments on the first and third days, with an average grazing time of 390 and 440 min, respectively. Under post-grazing conditions, low-intensity grazing had a 52% greater intake rate than severe-intensity grazing, which was attributed to a greater biting rate (37.9 bites/min) and bite weight (0.9 g DM/bite). Moderate grazing intensity (stubble height of ~15 cm associated with a pre-grazing height of ~25 cm) is recommended to manage a mixture of B. brizantha and A. pintoi when the objective is to couple high forage intake with a balanced legume proportion in the pasture. © 2024 John Wiley & Sons Ltd. MenosIntegrating forage legumes into grasslands offers numerous ecosystem services. However, the management of grass-legume pastures is challenging because the interaction between the defoliation frequency and severity may affect the legume persistence and forage intake by grazing animals. This 2-year study evaluated the most effective grazing intensity to increase forage intake while maintaining a balanced legume proportion in tropical pastures consisting of Brachiaria brizantha and Arachis pintoi. Three treatments (grazing intensities) were assessed: severe, moderate, and low, corresponding to stubble heights of 10, 15, and 20 cm, respectively, and a pre-grazing height of 25 cm. Two purebred Tabapua heifers were used for each treatment, and additional put-and-take animals were introduced, as required. Canopy structure, grazing behaviour, nutritive value, and forage intake were evaluated. The legume proportion in herbage mass remained consistent across all intensities, averaging 35% pre- and 32% post-grazing. The grazing duration remained consistent across treatments on the first and third days, with an average grazing time of 390 and 440 min, respectively. Under post-grazing conditions, low-intensity grazing had a 52% greater intake rate than severe-intensity grazing, which was attributed to a greater biting rate (37.9 bites/min) and bite weight (0.9 g DM/bite). Moderate grazing intensity (stubble height of ~15 cm associated with a pre-grazing height of ~25 cm) is recommended t... Mostrar Tudo |
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Thesaurus Nal: |
Arachis pintoi; Forage; Grazing management; Nutritive value; Urochloa brizantha. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| 1. |  | SOARES, T. L. D.; KELLY, K. F. S.; BARBOSA, I. R.; SOUSA, F. C. A.; AZEVEDO, T. L.; SANTOS, A. A.; GOTTSCHALK, L. M. F.; STEPHAN, M. P.; SILVA, C. M.; BRIGIDA, A. I. S. Imobilização de lipase de Aspergillus niger por adsorção. In: CONGRESSO BRASILEIRO DE ENGENHARIA QUÍMICA - COBEQ, 20., 2014, Florianópolis. Trabalhos científicos aprovados: processos biotecnológicos, Ref. 24830. Florianópolis: ABEQ, 2014. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
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