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Document Type:	Artigo
Title:	Dynamics of forage accumulation in Elephant grass subjected to rotational grazing intensities
Authors:	Sousa, Braulio Maia de Lana Nascimento Júnior, Domicio do Monteiro, Hélida Christhine de Freitas Silva, Sila Carneiro da Vilela, Hélio Henrique Silveira, Márcia Cristina Teixeira da Rodrigues, Carlindo Santos Sbrissia, André Fischer
Issue Date:	2013
Resumo :	We assessed the accumulation dynamics of forage and its components in Elephant grass cv. Napier (Pennisetum purpureum Schum.) that were subjected to three post-grazing height treatments (30, 50, and 70 cm) from February through May 2009 (experiment one) and December 2009 through May 2010 (experiment two). In experiment one, the grazing events started when the light interception by the canopy reached 95%. The same was adopted for experiment two, except for the first grazing event, which was based on the height of the apical meristems of basal tillers. The experimental design for both experiments was a randomized complete block with three replications. The pastures that were managed at a post-grazing height of 30 cm exhibited lower rates of leaf and stem growth, total growth and forage accumulation than those that were managed at 50 or 70 cm, indicating that post-grazing height affects Elephant grass. The pastures that were managed at 50 cm exhibited relatively stable accumulation rates and less stem accumulation. Pastures managed at 70 cm of pos-grazing height presented more leaf and stem accumulation. Most apical meristems of Elephant grass should be removed in the first grazing when they reach the post-grazing target height of 50 cm. The elevation in the residual post-grazing height, especially in the summer, raises the regrowth vigor in the Elephant grass cv. Napier pasture. The post-grazing height of 30 cm reduces the growth of the Elephant grass cv. Napier.
Keywords:	Grazing management Growth Light interception Pennisetum purpureum Senescence Tiller categories
ISSN:	1806-9290
Is part of:	Revista Brasileira de Zootecnia
Language:	eng
Publisher / Institution :	Sociedade Brasileira de Zootecnia
Citation:	SOUSA, B. M. L. et al. Dynamics of forage accumulation in Elephant grass subjected to rotational grazing intensities. Revista Brasileira de Zootecnia, Viçosa, v. 42, n. 9, p. 629-638, 2013. Disponível em: https://www.scielo.br/j/rbz/a/k5QNJ7yWvZhrtBfYmxzdPSc/?lang=en. Acesso em: 31 out. 2025.
License:	Creative Commons Atribuição-NãoComercial 4.0 Internacional (CC BY-NC 4.0)
URI:	https://ri.ufs.br/jspui/handle/riufs/23669
Appears in Collections:	DZO - Artigos de periódicos

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