Effect of Regulation of Whole-Plant Corn Silage Inoculated with <i>Lactobacillus buchneri</i> or <i>Bacillus licheniformis</i> Regarding the Dynamics of Bacterial and Fungal Communities on Aerobic Stability

Abstract

Enhancing the aerobic stability of whole-plant corn silage is essential for producing high-quality silage. Our research assessed the effect of inoculation with Lactobacillus buchneri or Bacillus licheniformis and its modulation of the bacterial and fungal microbial community structure in an aerobic stage of whole-plant corn silage. Following treatment with a distilled sterile water control, Lactobacillus buchneri, and Bacillus licheniformis (2 × 105 cfu/g), whole-plant corn was ensiled for 60 days. Samples were taken on days 0, 3, and 7 of aerobic exposure, and the results showed that inoculation with Lactobacillus buchneri or Bacillus licheniformis improved the aerobic stability of silage when compared to the effect of the control (p Bacillus licheniformis attenuated the increase in pH value and the decrease in lactic acid in the aerobic stage (p Lactobacillus buchneri or Bacillus licheniformis increased the diversity of the fungal communities (p Acetobacter and Paenibacillus in bacterial communities, and inhibiting the tendency of Monascus to replace Issatchenkia in fungal communities, thus delaying the aerobic spoilage process. Due to the prevention of the development of aerobic spoilage microorganisms, the silage injected with Lactobacillus buchneri or Bacillus licheniformis exhibited improved aerobic stability.

Keywords

• whole-plant corn silage
• aerobic stability
• <i>Lactobacillus buchneri</i>
• <i>Bacillus licheniformis</i>
• bacterial community
• fungal community