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Archivos de Zootecnia

On-line version ISSN 1885-4494Print version ISSN 0004-0592


SILVA, G.W.V. et al. In situ degradability of sugarcane varieties ensiled with additives. Arch. zootec. [online]. 2014, vol.63, n.241, pp.171-182. ISSN 1885-4494.

The aim of this work was to evaluate the in situ degradability of the dry matter, crude protein and neutral detergent fiber of two sugarcane varieties ensiled with additives. The evaluation of the degradability was carried out according to a random blocks design, in factorial scheme 2 x 6, being two cane varieties (IAC 86-2480 and RB 86-7515), and five additives (urea, NaOH, CaO, corn and Lactobacillus buchneri), plus the control silage, with 3 blocks (animals). The NaOH and the CaO increased the values of soluble fraction and the effective degradability of dry matter. The soluble fraction and the effective degradability of the crude protein were higher with urea. The effective degradability of the neutral detergent fiber of the two varieties was higher in the silages with NaOH and CaO. The silages treated with NaOH and CaO are the best in nutritional value, because of the highest effective degradability of dry matter and neutral detergent fiber. The IAC 86-2480 variety presents better nutritional value than RB 86-7515, due to the highest effective degradability of dry matter.

Keywords : Effective degradability; Potential degradabilbity.

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