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En la mayoria de los sistemas ganaderos del tropico altoandino de Suramerica son escasas las especies de gramineas para alimentar el ganado, ademas la variabilidad climatica que afecta a estas regiones hace que disminuya la oferta y calidad del forraje para alimentacion animal. Por lo que se hace necesario implementar estrategias de suplementacion, con tecnicas como el ensilaje; que se caracteriza por ser de facil adopcion entre los productores. El uso de especies forrajeras arbustivas adaptadas a las zonas altoandinas podria ser una alternativa para almacenar alimento, y ser usado en epocas de escasez, por su buen aporte de biomasa y nutrientes. El objetivo de esta revision bibliografica fue recopilar estudios de calidad nutricional y/o respuesta animal, utilizando ensilajes a partir de arbustivas forrajeras en el tropico altoandino. La busqueda de informacion se realizo durante los meses de marzo a mayo del 2020, mediante terminos claves. Dentro de las especies mas utilizadas para elaborar ensilaje individual y/o mixto se encontraron Tithonia diversifolia , Sambucus nigra , Sambucus peruviana , Smallanthus pyramidalis y Acacia decurrens , usadas actualmente en arreglos silvopastoriles como bancos mixtos de forrajes, sistemas silvopastoriles intensivos (SSPi) para ramoneo directo, setos forrajeros y/o franjas en contorno. En los trabajos encontrados se destaca el aporte de proteina, energia, minerales y alta digestibilidad a la dieta de bovinos y especies menores, con mejora de parametros productivos. Se concluye que, a pesar de las cualidades de utilizar ensilajes a partir de forrajeras lenosas, aun es muy bajo el reporte de resultados en investigaciones para el tropico altoandino. Palabras claves: cambio climatico, conservacion de forrajes, ganaderia, nutricion, sistemas silvopastoriles ABSTRACT In most livestock systems in the high Andean tropics of South America, there are few species of grasses to feed livestock, and the climatic variability affecting these regions means that the supply and quality of fodder for animal feed is declining. It is therefore necessary to implement supplementation strategies, with techniques such as silage, which is characterized by easy adoption among producers. The use of shrub fodder species adapted to the high Andean areas could be an alternative to store food, and be used in times of shortage, for its good contribution of biomass and nutrients. The objective of this literature review was to compile studies of nutritional quality and/or animal response, using silage from shrub fodder species in the high Andean tropics. The search for information was carried out during the months of March to May 2020, using key terms. Among the species most used to make individual and/or mixed silage were Tithonia diversifolia, Sambucus nigra, Sambucus peruviana, Smallanthus pyramidalis and Acacia decurrens , currently used in silvopastoral arrangements such as mixed fodder banks, intensive silvopastoral systems (SSPi) for direct grazing, fodder hedges and/or contour strips. In the works found, the contribution of protein, energy, minerals and high digestibility to the diet of cattle and minor species is highlighted, with improvement of productive parameters. It is concluded that, in spite of the qualities of using silage from woody fodder, the report of results in research for the high Andean tropics is still very low. Keywords : Climate change, forage conservation, livestock, nutrition, silvopastoral systems

Ensilaje de arbustivas forrajeras para sistemas de alimentación ganadera del trópico altoandino