UTILISATION OF NATIVE FORAGES FOR THE ELABORATION OF REGIONAL NUTRICIONAL BLOCKS AS A GOAT FEED SUPPLEMENT

Abstract

Using a completely randomized experimental design with three treatments and three repetitions, an experimental trial was carried to evaluate the technical-productive and economic viability of incorporating foliage from the tree called graft (Psittcanthus calyculatus) in regional nutritional blocks (BNR).  In phase I, BNR-1 (Urea 5%, molasses 40%, common salt 4%, cal 6%, cement 4%, sorghum mill stubble 24%, minerals 2% and mill foliage from tree called graft 15%) and BNR-2 (Urea 5%, molasses 40%, common salt 4%, lime 6%, cement 4%, sorghum ground stubble 14%, minerals 2% and mill foliage from tree called graft 25%) were elaborated. The treatments were: T-0: Goats that did not receive any type of BNR; T-1: Goats that received BNR-1 and T-2: Goats that received BNR-2. The BNR-2 showed better physical (hardness) and chemical characteristics (24.70% crude protein and 10.65% crude fiber), with costs of MN $4.40/Kg.  In Phase II the test of productive behavior was carried out, being the different BNR preferred in the same way by the goats and the supplementation with any of the BNR improved the weight gains (P<0.05). The artisanal elaboration of BNR was simple and economic and promotes the efficient use of regional natural resources. It emphasizes the importance of rescuing and strengthening the roots of the rural population in local productive agricultural activities under schemes of sustainability and technological innovation and with own resources.