Composición Química y Digestibilidad In Vitro de Algunas Especies Arbóreas Establecidas en el Piedemonte Amazónico

Actually, livestock production systems depend on low-quality foods, for which foliage of trees and shrubs can be used as an alternative fodder to supplement due to higher content of protein and minerals. This study assessed the chemical composition and nutritional value of Erithryna fusca , Clitoria fairchildiana , Trichantera gigantea , and Cratylia argentea established in two soil types in the Colombian Amazonia piedmont. The chemical composition (crude protein-CP, neutral detergent fiber-NDF, acid detergent fiber-FAD) and in vitro digestibility were determined in fodder. The results showed a high variability (P<0.01) in quality due to the species and to the site which were sown. The contents of the PC, NDF, and ADF ranged from 15.51 to 22.42%, 49.27 to 78.64%, and 41.27 to 74.26%, respectively. The concentration of Ca and P ranged from 0.18 to 8.29%, and 0.21 to 0.47%, respectively. In vitro digestibility ranged from 17.47 to 46.92%, which is very low. Among species, Trichanthera gigantea stood out for its high quality. This species presented the highest DIVMS and Ca (44.46% and 7.16%) and the lowest contents of NDF (54.7%) and ADF (49.5%).En la actualidad los sistemas de producción ganadera dependen de alimentos bajos en calidad, por lo que el follaje de árboles y arbustos forrajeros puede servir como alternativa como suplemento debido a los mayores contenidos de proteína y minerales. En este trabajo se evaluó la composición química y el valor nutritivo de Gliricidia sepium , Erithryna fusca , Clitoria fairchildiana , Trichantera gigantea y Cratylia argentea establecidas en dos suelos del piedemonte amazónico colombiano. La composición química (proteína cruda-CP, fibra detergente neutro- FND, fibra detergente acida-FAD) y la digestibilidad in vitro fueron determinados en los forrajes. Los resultados mostraron una alta variabilidad (P