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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
07/11/2017 |
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Data da última atualização: |
13/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
EUCLIDES, V. P. B.; CARPEJANI, G. C.; MONTAGNER, D. B.; NASCIMENTO JUNIOR, D.; BARBOSA, R. A.; DIFANTE, G. S. |
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Afiliação: |
VALERIA PACHECO BATISTA EUCLIDES, CNPGC; Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil; DENISE BAPTAGLIN MONTAGNER, CNPGC; Federal University of Viçosa, Viçosa, MG, Brazil; RODRIGO AMORIM BARBOSA, CNPGC; Federal University of Rio Grande do Norte, Natal, RN, Brazil. |
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Título: |
Maintaining post-grazing sward height of Panicum maximum (cv. Mombaça) at 50 cm led to higher animal performance compared with post-grazing height of 30 cm. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Grass and Forage Science, v. 73, n. 1, p. 174-182, March 2018. |
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ISSN: |
1365-2494 |
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DOI: |
10.1111/gfs.12292 |
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Idioma: |
Inglês |
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Conteúdo: |
In swards of tall, tufted, tropical grasses like Mombaça guinea grass (Panicum maximum (Jacq.)), post-grazing heights promote changes in sward structure, which influence animal performance. This study evaluated changes in sward structure in response to grazing management at two post-grazing heights (30 and 50 cm), associated ith 90 cm pre-grazing height. Each treatment was allocated to experimental unit (1.5 ha) in three replicated blocks. Pastures were evaluated pre- and post-grazing to estimate herbage mass, percentages of leaf (LP), stem (SP) and dead material (DP), and nutritive value (VN). Stocking rate was adjusted twice a week “using the put-and-take approach,” and animals were weighed every 28 days. Forage accumulation rate was greater for pasture managed at 30 cm (64.8 vs. 55.1 kg ha -1 day -1) than 50 cm. A greater number of days were required after grazing 30-cm residual pasture to achieve the pre-grazing target height, resulting in 25% decrease in number of grazing cycles compared with pastures managed at 50 cm. Regardless of post-grazing height targets, SP and DP decreased, whereas LP and NV increased from soil level to top of canopy. Stocking rate was greater in pastures managed to 30 cm than in those managed to 50 cm residual height (4.7 vs. 3.4 AU ha -1). However, average daily gain was greater for 50 cm than for 30 cm post-grazing height (795 vs. 590 g steer -1 day -1), resulting in a greater animal production per area (917 vs. 794 kg/ha of live weight). Thus, Mombaça guinea grass subject to intermittent grazing should be managed at 50 cm residual height. MenosIn swards of tall, tufted, tropical grasses like Mombaça guinea grass (Panicum maximum (Jacq.)), post-grazing heights promote changes in sward structure, which influence animal performance. This study evaluated changes in sward structure in response to grazing management at two post-grazing heights (30 and 50 cm), associated ith 90 cm pre-grazing height. Each treatment was allocated to experimental unit (1.5 ha) in three replicated blocks. Pastures were evaluated pre- and post-grazing to estimate herbage mass, percentages of leaf (LP), stem (SP) and dead material (DP), and nutritive value (VN). Stocking rate was adjusted twice a week “using the put-and-take approach,” and animals were weighed every 28 days. Forage accumulation rate was greater for pasture managed at 30 cm (64.8 vs. 55.1 kg ha -1 day -1) than 50 cm. A greater number of days were required after grazing 30-cm residual pasture to achieve the pre-grazing target height, resulting in 25% decrease in number of grazing cycles compared with pastures managed at 50 cm. Regardless of post-grazing height targets, SP and DP decreased, whereas LP and NV increased from soil level to top of canopy. Stocking rate was greater in pastures managed to 30 cm than in those managed to 50 cm residual height (4.7 vs. 3.4 AU ha -1). However, average daily gain was greater for 50 cm than for 30 cm post-grazing height (795 vs. 590 g steer -1 day -1), resulting in a greater animal production per area (917 vs. 794 kg/ha of live weight). Thu... Mostrar Tudo |
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Palavras-Chave: |
Guinea grass. |
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Thesaurus Nal: |
Animal performance; Forage; Nutritive value. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208646/1/Maintaining-post-grazing-sward.pdf
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Marc: |
LEADER 02425naa a2200253 a 4500
001 2079003
005 2020-01-13
008 2018 bl uuuu u00u1 u #d
022 $a1365-2494
024 7 $a10.1111/gfs.12292$2DOI
100 1 $aEUCLIDES, V. P. B.
245 $aMaintaining post-grazing sward height of Panicum maximum (cv. Mombaça) at 50 cm led to higher animal performance compared with post-grazing height of 30 cm.$h[electronic resource]
260 $c2018
520 $aIn swards of tall, tufted, tropical grasses like Mombaça guinea grass (Panicum maximum (Jacq.)), post-grazing heights promote changes in sward structure, which influence animal performance. This study evaluated changes in sward structure in response to grazing management at two post-grazing heights (30 and 50 cm), associated ith 90 cm pre-grazing height. Each treatment was allocated to experimental unit (1.5 ha) in three replicated blocks. Pastures were evaluated pre- and post-grazing to estimate herbage mass, percentages of leaf (LP), stem (SP) and dead material (DP), and nutritive value (VN). Stocking rate was adjusted twice a week “using the put-and-take approach,” and animals were weighed every 28 days. Forage accumulation rate was greater for pasture managed at 30 cm (64.8 vs. 55.1 kg ha -1 day -1) than 50 cm. A greater number of days were required after grazing 30-cm residual pasture to achieve the pre-grazing target height, resulting in 25% decrease in number of grazing cycles compared with pastures managed at 50 cm. Regardless of post-grazing height targets, SP and DP decreased, whereas LP and NV increased from soil level to top of canopy. Stocking rate was greater in pastures managed to 30 cm than in those managed to 50 cm residual height (4.7 vs. 3.4 AU ha -1). However, average daily gain was greater for 50 cm than for 30 cm post-grazing height (795 vs. 590 g steer -1 day -1), resulting in a greater animal production per area (917 vs. 794 kg/ha of live weight). Thus, Mombaça guinea grass subject to intermittent grazing should be managed at 50 cm residual height.
650 $aAnimal performance
650 $aForage
650 $aNutritive value
653 $aGuinea grass
700 1 $aCARPEJANI, G. C.
700 1 $aMONTAGNER, D. B.
700 1 $aNASCIMENTO JUNIOR, D.
700 1 $aBARBOSA, R. A.
700 1 $aDIFANTE, G. S.
773 $tGrass and Forage Science$gv. 73, n. 1, p. 174-182, March 2018.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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| 19. | | BATISTA, A. C.; CHAVES, F. C. M.; BIZZO, H. R. Biomassa, produção e composição química do óleo essencial de alecrim-pimenta (Lippia sidoides Cham) em função de espaçamentos, na Amazônia. Horticultura Brasileira, Brasília, DF, v. 28, n. 2, p. S3269-3273, jul. 2010. CD-ROM. Suplemento. Edição dos Anais do 50º Congresso Brasileiro de Olericultura, Guarapari, jul. 2010.| Tipo: Artigo em Anais de Congresso |
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