Effect of inoculation with preactivated Lactobacillus buchneri and urea on fermentation, aerobic stability characteristics of corn silage

This study was designed to determine the effects of the addition of Lactobacillus buchneri (LB CNCM I-4323, Lallemand) inoculant activated before ensiling to corn silage with urea on fermentation and aerobic stability. Corn was harvested during the milk stage period. Post-harvest materials were divided into 6 treatment groups. Treatment groups 1- Control, 2- Lactobacillus buchneri (LB) 1×105 cfu/g FM 3-Urea 1% DM 4- Lactobacillus buchneri + Urea (LB+Urea), 5- Activated Lactobacillus buchneri (ALB) 1×105 cfu/g FM 6- Activated Lactobacillus buchneri + Urea (ALB) + Urea). After adding the additives, the silage samples were vacuum packed into plastic bags with 3 replications in each treatment group. Chemical and microbiological analyzes were performed on silage samples opened on the 1st, 3rd, 7th, 14th and 75th days of fermentation. The aerobic stability test was applied to the silages opened on the 75th day for 7 days. In this study, the addition of Lactobacillus buchneri inoculant and urea activated before ensiling positively affected the fermentation and aerobic stability of corn silages. While it increased the CP, LA values of the silages in the ALB group, it caused a decrease in the AA, PA, pH, NDF, ADF and yeast contents. Adding ALB+ Urea to silages improved the aerobic stability of silages. As a result, activation of Lactobacillus buchneri and its use with urea can be used to improve the fermentation profile, chemical composition and aerobic stability of corn.