Efeitos da adição de inoculantes bacterianos sobre a composição bromatológica e perfil fermentativo da silagem de girassol produzida em silos experimentais

ABSTRACT - Sunflower (20.0% DM and 10.0% CP) was ensiled in 16 plastic experimental silos, forming four treatments: control,Sil-All ( S. faecium , P. acidilactici , L. plantarum , amylase, hemicellulase, and cellulase), Silobac ( L. plantarum , S. faecium , and Lactobacillus sp.), and Pioneer 1174 ( S. faecium and L. plantarum ). Silos were opened 125 days after ensiling and sampled to proceedchemical analyses. Pioneer increased soluble carbohydrates, ethylic alcohol concentration, and buffering capacity. This inoculantdecreased pH, ammonia, and acetic acid concentration compared to control. Pioneer also increased starch content compared to con trol,but Sil-All decreased. The DM, CP, ADIN, NDF, ADF, and lignin contents, In vitro digestibility of the DM, DM losses, aerobic stability,propionic, butyric and lactic acids did not suffer influence of treatments.Key Words: additives, ensiling, Helianthus annus , lactic acid bacteria, organic acids 1 Projeto financiado pela Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP).