Fermentation parameters, quality and losses in sugarcane silages treated with chemical additives and a bacterial inoculant

Revista Brasileira de Zootecnia

André De Faria Pedroso¹  Armando De Andrade Rodrigues¹  Waldomiro Barioni Júnior¹  Gilberto Batista De Souza¹ 

[1] ,Embrapa Pecuária Sudeste SP ,Brazil

关键词: ammonium sulfate;    ethanol;    L. buchneri;    sodium benzoate;    urea;    volatile fatty acids;   

DOI  :  10.1590/S1516-35982011001100006

来源: SciELO

【 摘 要 】

The objective of this trial was to evaluate chemical additives and a bacterial inoculant on the inhibition of alcoholic fermentation and reduction of losses in sugarcane silages. Treatments were (doses on a fresh forage basis): without additive (control); urea (10 g/kg); urea (5 g/kg) + sodium benzoate (0.5 g/kg); sodium benzoate (1 g/kg); urea + ammonium sulfate in a 9:1 relation (10 g/kg); Lactobacillus buchneri (5 × 10(4) cfu/g). Silages were produced in 10.16- × 30-cm PVC tubes, provided with tight lids adapted with Bunsen valves for gas losses quantification. Minisilos were opened 139 days after ensiling. Ethanol content (227 g/kg dry matter - DM) and total DM loss (30%) were high in the control silage. All additives, except benzoate, decreased ethanol concentration in silages. Inoculation with L. buchneri increased acetic acid content in the silage, resulting in a 41% reduction in ethanol content and the lowest gas loss among treatments (15.2%). There was synergistic effect between additives for the combined use of urea and benzoate. Silage treated with urea + ammonium sulfate has higher content of total digestible nutrients than the silage treated with urea exclusively.

【 授权许可】

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