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Archivos de Zootecnia

versión impresa ISSN 0004-0592

Resumen

OLIVEIRA, H.C. et al. Losses and nutritive value of urea ammoniated tanzânia grass silage. Arch. zootec. [online]. 2009, vol.58, n.222, pp.195-202. ISSN 0004-0592.

The aim of this experiment was to evaluate the effluent and gas losses and the alterations of bromatologic composition and in vitro dry matter digestibility of ammoniated Tanzânia grass (Panicum maximum) silage. The experimental design used was the completely randomized in a 4 x 2 factorial scheme, being (four urea doses 0.0, 0.25, 0.5 and 0.75% dry matter basis and two treatment periods 30 and 60 days), with four repetitions. The silage gases losses were influenced, showing negative quadratic effect (p<0.05) as function of urea doses. The effluent losses were greater in 60 days period, without effect of urea doses. The ammoniation at the doses used did not alter the dry matter, neutral detergent fiber, acid detergent fiber, neutral detergent insoluble nitrogen, acid detergent insoluble nitrogen, celluloses, hemicelluloses and lignin contents. The crude protein and in vitro dry matter digestibility values increased as function of the applied doses.

Palabras clave : Effluent; In vitro dry matter digestibility; Panicum maximum.

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