Vania Klein
Abstract:
Six sugarcane varieties were analyzed for their agronomic, chemical and bromatological characteristics, aiming to determine the most recommended for cattle feeding. The varieties evaluated were: RB72454, RB835486, SP80-1816, SP79-1011, RB855536 and RB835054. The production of natural matter (MN) and dry matter (MS), viable and non-viable stems per meter (CV and CNV/m), total stem internodes (TI), percentage of discovered internodes (PID), stem length (CC), diameter (DC) and density (DEC), percentage of stem in the plant (PC), Brix, Pol, reducing sugars (AR) and total reducing sugars (ART), crude protein (PB), matter mineral (MM), neutral detergent fiber (FDN) and acid detergent fiber (FDA). The experiment was carried out in a randomized block design with six treatments and five replications. The cut occurred 17 months after planting. The RB835054 variety presented higher yield (P <0.05), reaching 115.54 and 33.01 t/ha of MN and MS, respectively. MN and MS productions were positively correlated with CV/m. For the FDN and FDA contents, the SP79-1011 variety presented the lowest contents, 44.32% and 24.63, respectively, not differing (P> 0.05) from RB835054 in FDN. For use in animal nutrition, the varieties RB835054 and SP79-1011 showed higher viability.
