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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
27/05/2024 |
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Data da última atualização: |
19/08/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PASQUINI NETO, R.; FURTADO, A. J.; SILVA, G. V. DA; LOBO, A. A. G.; ABDALLA FILHO, A. L.; BRUNETTI, H. B.; BOSI, C.; PEDROSO, A. de F.; PEZZOPANE, J. R. M.; OLIVEIRA, P. P. A.; RODRIGUES, P. H. M. |
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Afiliação: |
ROLANDO PASQUINI NETO, UNIVERSITY OF SÃO PAULO; ALTHIERES JOSÉ FURTADO, UNIVERSITY OF SÃO PAULO; GABRIELE VOLTARELI DA SILVA, UNIVERSITY OF SÃO PAULO; ANNELISE AILA GOMES LOBO, UNIVERSITY OF SÃO PAULO; ADIBE LUIZ ABDALLA FILHO, UNIVERSITY OF SÃO PAULO; HENRIQUE BAUAB BRUNETTI; CRISTIAM BOSI; ANDRE DE FARIA PEDROSO, CPPSE; JOSE RICARDO MACEDO PEZZOPANE, CPPSE; PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE; PAULO HENRIQUE MAZZA RODRIGUES, UNIVERSITY OF SÃO PAULO. |
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Título: |
Forage accumulation and nutritive value in extensive, intensive, and integrated pasture-based beef cattle production systems. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Crop & Pasture Science, v. 75, CP24043, 2024. |
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DOI: |
10.1071/CP24043 |
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Idioma: |
Inglês |
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Conteúdo: |
A challenge for the livestock sector is to improve the production and nutritive value of forage grasses through sustainable management strategies. Aims. This study evaluated the impact of management on the productive and nutritive value of five pasture-based production systems: irrigated pasture with 600 kg nitrogen (N) ha−1 (IP600); rainfed pasture with 400 kg N ha−1 (RP400); rainfed pasture with 200 kg N ha−1 (RP200); silvopastoral with 200 kg N ha−1 (SP200); and degraded pasture without N fertilisation (DP0). Methods. During two experimental years, samples were collected pre- and post-grazing to determine forage and nutritional parameters. Land-saving effects and efficiencies of N fertilisation and water use were calculated. Key results. For C4 grasses, forage mass accumulation was greater for IP600 and RP400. IP600 also presented the greatest leaf area index and crude protein concentration, whereas DP0 presented the lowest values of both. For C3 grasses in the IP600 treatment, greater forage mass accumulation and leaf area index were found in winter than in autumn; all nutritional characteristics were not affected by season of the year. For land-saving effect, and N- and water-use efficiencies, IP600, RP400 and RP200 presented higher values than DP0 and SP200. Conclusions. More intensified systems with proper management allowed better productive and nutritional characteristics than degraded pasture or silvopasture, especially during seasons with greater precipitation or when irrigated. Implications. Intensification practices make better use of natural resources (water and land) and agricultural inputs (N fertiliser) to ameliorate the effects of seasonality and improve quality and productivity of tropical grasses in pasture-based livestock production systems MenosA challenge for the livestock sector is to improve the production and nutritive value of forage grasses through sustainable management strategies. Aims. This study evaluated the impact of management on the productive and nutritive value of five pasture-based production systems: irrigated pasture with 600 kg nitrogen (N) ha−1 (IP600); rainfed pasture with 400 kg N ha−1 (RP400); rainfed pasture with 200 kg N ha−1 (RP200); silvopastoral with 200 kg N ha−1 (SP200); and degraded pasture without N fertilisation (DP0). Methods. During two experimental years, samples were collected pre- and post-grazing to determine forage and nutritional parameters. Land-saving effects and efficiencies of N fertilisation and water use were calculated. Key results. For C4 grasses, forage mass accumulation was greater for IP600 and RP400. IP600 also presented the greatest leaf area index and crude protein concentration, whereas DP0 presented the lowest values of both. For C3 grasses in the IP600 treatment, greater forage mass accumulation and leaf area index were found in winter than in autumn; all nutritional characteristics were not affected by season of the year. For land-saving effect, and N- and water-use efficiencies, IP600, RP400 and RP200 presented higher values than DP0 and SP200. Conclusions. More intensified systems with proper management allowed better productive and nutritional characteristics than degraded pasture or silvopasture, especially during seasons with greater precipitation or ... Mostrar Tudo |
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Palavras-Chave: |
Avena byzantine; Cool season C3 grasses; Grazing systems; ILPF; Sustainable intensification; Warm season C4 grasses. |
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Thesagro: |
Lolium Multiflorum. |
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Thesaurus Nal: |
Feed quality; Megathyrsus maximus; Silvopastoral systems; Tropical pastures; Urochloa brizantha; Urochloa decumbens. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
null
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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