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Archivos de Zootecnia

versión impresa ISSN 0004-0592

Resumen

PADUA, F.T. et al. Effect of the level of urea and period of treatment on composition of paspalum notatum hay. Arch. zootec. [online]. 2011, vol.60, n.229, pp.57-62. ISSN 0004-0592.  http://dx.doi.org/10.4321/S0004-05922011000100007.

This study was conducted to evaluate the effects of doses of urea and periods of treatment on the crude protein (PB), neutral detergent fiber (FDN), acid detergent fiber (FDA), hemicellulose (HCEL) and mineral matter (MM) of hay of Paspalum notatum. Were used levels of 0 (control treatment), 0.5, 1.0, 1.5, 2.0 and 2.5% of urea based on natural matter and storage periods of 21, 28 and 35 days. The experiment was conducted in a completely randomized design in a design in a split plot, with those randomized in the plot and the doses in the sub-plot. There was no effect of interaction between level and the period of storage (p>0.001) for the variables. For the content of FDN, FDA, HCEL and PB the regression effect was observed (p<0.001) depending on the dose of urea applied. For the content of MM was not evident effect of regression. The level of urea applied provided improvements with respect to the reduction of cell wall constituents, however, the storage periods studied did not influence the behavior of variables.

Palabras clave : Ammonization; Forage conservation; Grass; Nutritional value.

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