Data/hora: 06/06/2024 02:22:21

Provedor de dados: | 2
País: | Brazil
Título: | Defoliation patterns and tillering dynamics in Italian ryegrass under different herbage allowances
Autores: | Graminho, Larissa Arnhold; Rocha, Marta Gomes da; Pötter, Luciana; Rosa, Aline Tatiane Nunes da; Bergoli, Tuani Lopes; Machado, Marcela.
Data: | 2014-09-24
Ano: | 2014
Palavras-chave: | Zootecnia / Pastagens e forragicultura accumulated thermal sum; Intermittent grazing; Defoliation intensity; Defoliation interval; Lambs; Lolium multiflorum.
Resumo: | This work was carried out in order to generate information on the tillering process and to contribute for the understanding of the defoliation process on Italian ryegrass (Lolium multiflorum Lam.) grazed by lambs under different herbage allowances: 6, 8 and12 kg  of dry matter  per100 kg of animal live weight  per day. The grazing method was intermittent. The experimental design was completely randomized following a repeated measure arrangement, with three treatments and two area replications. The intensity of defoliation is greater at 6 and 9% herbage allowances. The defoliation interval is higher at 12% herbage allowance, intermediate at 9% and lower at 6%. The rates of tiller emergence, survival and death, stability index the tiller population are similar for the different herbage allowances and differ according to the phenological stage of ryegrass. Structural changes caused by canopy management with low herbage allowance and/or due to the advance in developmental stage of ryegrass alter defoliation strategies, with more intense and frequent grazing.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24021

10.4025/actascianimsci.v36i4.24021

Editor: | Editora da Universidade Estadual de Maringá
Relação: | http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24021/pdf_49
Formato: | application/pdf

Fonte:

Acta Scientiarum. Animal Sciences; v. 36, n. 4 (2014); 349-356

Acta Scientiarum. Animal Sciences; v. 36, n. 4 (2014); 349-356

1807-8672

1806-2636