Avaliação da silagem realocada de gergelim adicionada de leite fermentado em diferentes períodos de armazenamento.

Abstract

The relocation of silage involves moving silage from one location and/or silo to another, aiming to meet the needs of the rural producer. The use of inoculant in reallocated silage can improve the fermentative profile, and fermented milk can be a source of inoculant and beneficial lactic acid for fermentation in reallocated silage. Thus, this study aimed to evaluate the use of fermented milk in the quality of sesame silage reallocated in different storage periods. A completely randomized design with five replications was used, in a factorial scheme (3 × 4). The first factor of reallocated sesame silage: without additive, with commercial inoculant, and with fermented milk. The second factor was determined by the silo opening time after the silage was relocated: at 15, 30, 60 and 90 days after relocation. Experimental silos (PVC tube) with a capacity of 500 kg/m³ of silage storage were used. Data were subjected to analysis of variance and means analyzed by the Tukey test compared with significance (P <0.05). To characterize the quality of the silage, the parameters analyzed were: losses and recovery of dry matter; buffer capacity and soluble carbohydrates; pH and ammoniacal nitrogen, volatile fatty acids; microbiological population; chemical composition. For dry matter, an average of 24.61 kg-1 DM was observed with the use of the inoculant L. buchneri in the period of 60 days, for protein it presented a higher value in the opening of 15 days with 12.17 kg- 1 DM with the use of fermented milk, for mineral matter the lowest value for the treatment without additive with 7.57 kg-1 DM. As for pH, it presented lower values for the treatment with L. buchneri and fermented milk with 4.22 and 4.01, respectively. For lactic acid bacteria, the best result was obtained after opening of 15 and 30 days for treatment with L. buchneri inoculant with 6.74 and 5.80 CFU/g. It is recommended to use a commercial inoculant in the relocated sesame silage, as it presents better results.