Silagem de milho ou de cana-de-açúcar com lactobacillus buchneri exclusivamente ou em associação com l. plantarum

Abstract

The objective of this work was to evaluate the effect of Lactobacillus buchneri applied alone or associated with L. plantarum on the fermentation profile, aerobic stability, and nutritive value of corn and sugarcane silages. A completely randomized experimental design was used with four replicates. Treatments for corn silage were: a control without lactobacilli; 1x105 cfu g-1 of L. buchneri; and 1x105 cfu g-1 of L. buchneri and L. plantarum. For sugarcane silage, treatments were: a control; and 1x105 cfu g-1 of L. buchneri. Silages were stored for 150 days. Corn silage treatment did not affect most of the variables related to nutritive value, fermentative parameters, microbiological profiles, losses, and aerobic stability. In sugarcane silages, treatment with L. buchneri showed a higher dry matter content, with no differences for the other nutritive value variables. Furthermore, other typical results regarding L. buchneri addition were observed: lower total dry matter loss and lower losses due to gas production. Addition of L. buchneri, alone or associated with L. plantarum, does not change quality and conservation efficiency in corn silages. However, in sugarcane silages the application of L. buchneri decreases conservation losses.