Exogenous fibrolytic enzymes in ruminal degradation in situ of king grass (Pennisetum hybridum) pasture in two cutting ages
The effect of an exogenous fibrolytic enzyme compound (Fibrozyme® 0 and 1.50 g enzyme/kg DM enzyme) on ruminal digestibility and fermentation was evaluated in a diet and king grass hay forage cut at 5 and 70 days. Nylon bags were incubated in the rumen fistulated sheep with king grass hay sa...
| Autores: | , , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2016 |
| País: | Ecuador |
| Recursos: | Universidad Técnica Estatal de Quevedo |
| Repositorio: | Revista Ciencia y Tecnología |
| Idioma: | inglés |
| OAI Identifier: | oai:revistas.uteq.edu.ec:article/148 |
| Acesso em linha: | https://revistas.uteq.edu.ec/index.php/cyt/article/view/148 |
| Access Level: | acceso abierto |
| Palavra-chave: | DEGRADABILIDAD IN SITU RUMEN INCUBACIÓN EDAD DE COSECHA IN SITU DEGRADABILITY INCUBATION |
| Resumo: | The effect of an exogenous fibrolytic enzyme compound (Fibrozyme® 0 and 1.50 g enzyme/kg DM enzyme) on ruminal digestibility and fermentation was evaluated in a diet and king grass hay forage cut at 5 and 70 days. Nylon bags were incubated in the rumen fistulated sheep with king grass hay samples at 0, 12, 24, 48 and 72 h, feces and urine samples were taken to quantify the nitrogen retained. In situ degradability of MS king grass hay for 12, 24, 48 and 72 h was not affected by exogenous fibrolytic enzyme compound for both complete diets and for forage. In vivo digestibility (p>0.05) of nutrients was higher in hay 35 d compared to 70 d hay which was not influenced by exogenous fibrolytic enzyme compound. Nitrogen retention was higher for 35 d hay without being influenced by the enzyme compound. We conclude that exogenous fibrolytic enzymes do not affect digestion of nutrients king grass hay pasture. |
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