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| Format: | Artículo científico |
| Language: | es |
| Published: |
Universidad Austral de Chile
2002
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| Online Access: | https://www.redalyc.org/articulo.oa?id=173013743005 |
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Table of Contents:
- Efecto del ensilado sobre la composición química y degradabilidad ruminal de la pomasa de manzana RENE ANRIQUE G. MARIA PAZ VIVEROS Veterinaria silage chemical composition Apple pomace degradability evaluated. Rumen degradability was determined in situ by the nylon bag technique at 2, 6, 12, 24 and 36 hrs fermentation with 6 replicates per time and apple pomace type. Ensiling increased the relative contents of DM, crude protein (CP), crude fiber (CF) and acid detergent fiber (ADF) (43.7, 13.0, 14.3 and 18.4% respectively) and reduced the metabolizable energy content (4.9%). Degradability was greater in fresh compared to ensiled apple pomace (p<0.05), however, the advantage decreased from 26% at 2 hrs to 3.3% at 36 hrs fermentation (84.9 vs 82.2 %), 93-95% of the potential degradability was obtained at 36 hrs fermentation. Values for soluble, slowly degradable and undegradable fractions of fresh and ensiled pomace, respectively were: 26.5 and 13.8%; 62.3 and 75.7%; 11.2 and 10.5%; potential degradability and degradation rates were: 88.8 and 89.5%; 0.076 and 0.065 hr-1, respectively. In ensiled pomace the insoluble fraction contributed more to DM degraded at 36 hrs (73.4 vs 92.1%) suggesting a greater fiber degradability and a more uniform degradation pattern with time. Due to its higher fiber and insoluble fraction content, effective degradability was lower in ensiled apple pomace 2002 artículo científico 0301-732X https://www.redalyc.org/articulo.oa?id=173013743005 es http://www.redalyc.org/revista.oa?id=1730 Archivos de Medicina Veterinaria application/pdf Universidad Austral de Chile Archivos de Medicina Veterinaria (Chile) Num.2 Vol.XXXIV