Evaluación de la producción de biomasa, calidad nutricional y digestibilidad in vitro de cuatro variedades de alfalfa (medicago sativa) en el municipio de Pamplona.

Abstract

The present research project was carried out at the Center for Research in Plant and Bio-inputs CISVEB of the University of Pamplona, where 12 plots of 9 m2 each were adapted in a total area of 108 m2. The first stage of the project consisted in the adaptation of the terrain and sowing of the same with the different alfalfa varieties (Cuf 101), (Moapa 69), (Sw-8210) and (Sw 8718), in which Soil analysis, previously performed to apply the correctives and nutrients necessary for normal development of alfalfa varieties. The second stage was included in the field data collection, through direct observations and measurements such as: amount of biomass in each plot during the first cut of alfalfa, in the stage comprising 10% of its flowering. To evaluate the nutritional quality of the four alfalfa varieties, a bromatological analysis was carried out in each of the samples, in order to establish the variety with the highest content and nutritional quality; In the same way to determine the digestibility in vitro. Samples were sent to the National University of Colombia - Bogotá headquarters, using the Tilley and Terrey method. It was evidenced that the results of this study show that there are no significant differences between the four varieties of alfalfa cultivars in nutritional qualities (biomass production, dry matter, PC, in vitro digestibility, NDF, FDA, ash, Ca and P) and Digestibility for ruminants. It was established that under Pamplona conditions alfalfa cultivation can be implemented in any of the four varieties with very good results in nutritional quality and digestibility.