In situ degradability of Mombaça grass strata with different sources of phosphorus under grazing - DOI: 10.4025/actascianimsci.v31i1.4226
This work was carried out with the objective of determining the degradability of strata of Panicum maximum Jacq cv. Mombaça. The experiment consisted of a random design with split-plot, with three repetitions. The treatments were phosphorus sources: Yoorin® and simple super phosphate + tripl...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2009 |
| País: | Brasil |
| Institución: | Universidade Estadual de Maringá (UEM) |
| Repositorio: | Acta Scientiarum. Animal Sciences (Online) |
| Idioma: | portugués |
| OAI Identifier: | oai:periodicos.uem.br/ojs:article/4226 |
| Acceso en línea: | https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4226 |
| Access Level: | acceso abierto |
| Palabra clave: | dry matter potential and effective degradability crude protein effective degradability degradabilidade potencial e efetiva da matéria seca degradabilidade efetiva da proteína bruta 5.04.00.00-2 |
| Sumario: | This work was carried out with the objective of determining the degradability of strata of Panicum maximum Jacq cv. Mombaça. The experiment consisted of a random design with split-plot, with three repetitions. The treatments were phosphorus sources: Yoorin® and simple super phosphate + triple super phosphate and Control (without phosphorus) and three pasture strata: 20-40; 40-60 and above 60 cm. In the treatments with phosphorus, 140 kg ha-1 of P2O5 was applied to the planting. After collection of the vegetative material, it was taken to the laboratory and separated into leaf lamina and stem + sheath fractions. After drying and grinding (5 mm) of the fractions, they were incubated in castrated male bovines, for the periods of 96, 48, 24, 6 and 0 hours. The phosphorus sources did not modify the dry mass, crude protein, potential and effective degradability (2, 5, 8% of flow rate) of Mombaça grass. In the strata, the dry matter and crude protein degradability of fractions a, b and c and the potential and effective dry matter degradability and effective crude protein degradability was higher in the strata (above 40 cm). |
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