Abstract
ABSTRACT This study examined the quality of silage from two cultivars of energy cane (Saccharum spontaneum) produced with different additives. The experiment was laid out in a completely randomized design with a 2×5 factorial arrangement of treatments consisting of two cultivars (VG3, VG1126) and four additives (1% urea; 1% NaOH; 1% CaO; and 1.0 × 1011 CFU g-1 of Lactobacillus plantarum- LP) + control, with eight replicates. Experimental mini-silos were used, which were opened 72 days after ensiling. The dry matter (DM), crude protein (CP), organic matter (OM), mineral matter (MM), ether extract (EE), neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents, and silage degradability were. We identified significant interactions effect between cultivar and type of additive for DM, CP, EE, NDF. ADF. Organic and mineral matter percentage were similar between the two cultivars. LP was the least beneficial additive for DM degradation.After 72 h of fermentation, in vitro NDF degradation of cultivar VG3 increased due to urea, NaOH, and CaO, whereas degradation cultivar VG1126 decreased when inoculated with LP or CaO. The NaOH and CaO improved silage degradability thus improving its quality. The use of LP in the present study did not benefit silage for energy-cane cultivars. The use of NaOH and CaO improves the quality of the silage, two varieties of sugarcane energy VG3 and VG1126, enabling its use with better efficiency for animal feed.
Highlights
In view of the demand for food and the need to intensify agricultural systems, several lines of research focus on the production scenario
The results found for mineral matter (MM) are opposite to those obtained for organic matter (OM)
Another important result was the reduction in neutral detergent fiber (NDF) contents of the silages from the two energy-cane cultivars when they were inoculated with NaOH or CaO (Table 3)
Summary
In view of the demand for food and the need to intensify agricultural systems, several lines of research focus on the production scenario One of these highly researched fields is the breeding of sugarcane, given its importance as the main raw material in the production of ethanol and sugar as well as its wide use as a forage for animal feed. When grown in low-fertility soils and in unfavorable environmental conditions, energy cane can produce more than twice as much as conventional cane in the same conditions (Matsuoka et al, 2014; Antonini et al, 2017) Another important characteristic of energy cane is high fiber production. The present study was developed to examine the chemical composition and degradability of silage from two cultivars of energy cane treated with different additives
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