Modelo de simulación para el cálculo de la densidad de los recursos forrajeros en un sistema silvopastoril para ganadería doble propósito en Norte de Santander.

Abstract

The use of technological offerings a high impact issue. The objective of this study was to develop an analysis of the density and quality of forage resources in a silvopastoril system in dual-purpose livestock in the municipality of Salazar de las Palmas, which had as an input the use of technological offers such as nirS near-infrared spectroscopy, used for the analysis of the chemical composition of tropical fodder and the AlimenTro,information system, offered by the Colombian Agricultural Research Corporation (AGROSAVIA). Nutritional analysis was carried out of the main forage resources of a Silvopastoril system composed of: Low stratum: Brachiaria (Brachiaria decumbens) and Estrella (Cynodon nlemfuensis); medium stratum: Kingrass (Pennisetum purpureum), Gold button (Tithonia diversifolia) and high stratum: Guácimo (Guazuma ulmifolia) and Leucaena (Leucaena leucocephala), the fractions analyzed were: MS, PB, E.E., FDN, Tannins, CNF, CF, Ca, P, Mg, Digestibility of MS, Lignin, EB, ENm, ENg, ENl, which, by means of a variance analysis, were determined to be different (P<0.05) with the exception of the component CNF(P>0.05), in terms of their availability was estimated by double sampling and tiered technique, determining an availability of 5825.4; 3412,2; 15609; 904.4; 6.95; 51.03 Kg MS for B. decumbens, C. nlemfuensis, P. purpureum, T . diversifolia, G. ulmifolia and L. leucocephala respectively, with the application of the simulation model it was obtained that an optimal density of 3,717 or 2,295 trees/ha of G. ulmifolia and L. leucocephala respectively is required, depending on the scenarios and objectives raised concluding that the nutritional composition, availability and density of these resources were determined by their taxonomic classification, time of year, age of cut and management.