Effect of ammoniation and moisture content on the quality of signal grass (Brachiaria decumbens Stapf) hay
DOI:
https://doi.org/10.1590/S1678-3921.pab1993.v28.3906Keywords:
anhydrous ammonia, forage grasses, moisture levels, tropical grasses, chemical composition, fungi developmentAbstract
The experiment was carried out to evaluate the effects of two moisture levels (18--20% and 13-15%) and three anhydrous ammonia levels (0.0; 1.5; 3.0% of NH3) on the quality of Brachiaria decumbens Stapf hay. The hay was bailed in April and weighed and treated under plastic cover during 30 days. The hay presented a similar chemical composition when bailed with high or low moisture. The percentages of NDF (80.59; 77.61; 76.10%); hemicellulose (32.56; 29.48; 28.76%) and lignin (9.53; 8.21; 7.54% decreased and the percentages of crude protein (4.04; 11.35; 13.22%) and IVDNM (36.78; 49.72; 54.33%) increased as the NH3 level increased. The fractions ADF, cellulose, and ADIN did not change due to the ammoniation. The incidence of fungi decreased with application of NH3 being the better results obtained with the 1.5% treatments.
