| Registro completo |
| Provedor de dados: |
Animal Sciences
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| País: |
Brazil
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| Título: |
Defoliation patterns and tillering dynamics in Italian ryegrass under different herbage allowances
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| Autores: |
Graminho, Larissa Arnhold
Rocha, Marta Gomes da
Pötter, Luciana
Rosa, Aline Tatiane Nunes da
Bergoli, Tuani Lopes
Machado, Marcela
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| Data: |
2014-09-24
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| Ano: |
2014
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| Palavras-chave: |
Zootecnia / Pastagens e forragicultura accumulated thermal sum
Intermittent grazing
Defoliation intensity
Defoliation interval
Lambs
Lolium multiflorum
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24021
10.4025/actascianimsci.v36i4.24021
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| Editor: |
Editora da Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24021/pdf_49
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| Formato: |
application/pdf
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| 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
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