Amonização do pseudocaule de bananeira pré-seco

Abstract

The pseudostem represents most of the waste from banana farming. Due to the great availability, and seeking to minimize the risks of environmental pollution, it is interesting to use them in animal feed. The objective of this experiment was to evaluate the chemical composition, fermentative characteristics and rumen degradability of the pre-drying of pseudocaule of the ammoniated banana with different doses of urea. The experimental design used was a randomized, pseudostem pre-dried banana with four urea levels (0.5%, 1.0%, 1.5%, 2.0% inclusion in the natural material) and the control treatment with 6 replicates. A linear increase in pH values was observed, increasing 0.5% for each percentage unit of added urea. There was a linear increase in crude protein, ethereal extract and lignin contents, with increments of 1.62; 81.77 and 0.78% respectively for each urea unit added. There was a linear reduction in neutral detergent fiber and total carbohydrates, with decreases of 1.58 and 2.96%, respectively. In the ruminal kinetics, a linear increase of fraction "a" and standard degradability was observed, being the increase of 5.38 and 3.81% respectively. There was also a linear reduction in the standard undegradable fraction of 3.83%. The ammonization of banana pseudostem with 2% urea improves the nutritive value and the degradability of the nutrients.