Avaliação de duas variedades de cana-de-açúcar submetidas a diferentes tempos de armazenamento Evaluation of two varieties of sugar cane submitted to different storage times

Abstract

Foram estudadas duas variedades de cana-de-açúcar (CO 413 e RB 72 454), com o objetivo de verificar o efeito do armazenamento pós-corte sobre suas características tecnológicas e bromatológicas. As variedades foram cortadas e armazenadas durante zero, 1,5, 3,0 e 4,5 dias. Utilizou-se o delineamento inteiramente casualizado em esquema fatorial 2 x 4 . A variedade RB 72 454 apresentou melhor maturação que a variedade CO 413. O armazenamento proporcionou aumento no teor de açúcares redutores (PA study was carried out to investigate the effects of four different storage times on technology and bromatologic characteristics in two sugar cane varieties (CO 413 and RB 72 454). The varieties were cut and stored during zero, 1.5, 3.0 and 4.5 days. It was used a completely randomized design according to a 2 x 4 factorial scheme. The RB 72 454 variety showed better dry matter level than the CO 413 variety. The storage time increased (P<0.01) the reducters sugar levels and decreased (P<0.01) the crude protein levels. When they were stored during 4.5 days, a significative (P<0.01) reduction of 14.66 and 4.04% in the levels of crude protein and gross energy, respectively, was observed.

Keywords

• Saccharum officinarum
• bovino
• composição química
• nutrição animal
• Saccharum officinarum
• bovine
• chemical composition
• animal nutrition