The goal of this study was to evaluate effects of various microbial and organic additives on chemical compositions, fermentation indices, and aerobic stability of barley silage. Youngyang barley harvested at 31.5% dry matter (DM), and ensiled into 20 L bucket silo for 0, 1, 3, 7, 48, and 100 d in quadruplicates with four additives following: sterile destilled water at 1% of fresh forage (CON); Lactobacillus plantarum at 1.2 x 105 cfu/g of fresh forage (CL); Lactobacillus buchneri at rate of 1.2 x 105 cfu/g fresh forage (LB); Fermented Persimmon Extract at 1% of fresh forage (FPE); and Essential Oil at 1% of fresh forage (EO). On 100 d of ensiling, CL and FPE silages had lower (p<0.05) DM than CON silage. Additionally, FPE silage had higher (p<0.05) crude protein than CON silage. All silages with additives, except EO, had higher (p<0.05) neutral detergent fiber (NDF) than CON silage. Silage treated with CL, LB, and FPE had lower in vitro DM digestibility than CON silage, and silages treated with LB and FPE had higher in vitro NDF digestibility (IVNDFD) on 100 d of ensiling. The PFE silage produced the highest (p<0.05) lactate during ensiling period, while LB silage produced the highest (p<0.05) acetate. All inoculated silages had higher (p<0.05) LAB count than control silage. Only CL silage had higher (p<0.05) yeast count than control silage, while the other silages were not differ compared to CON silage. The aerobic stability was higher (p<0.05) in LB and FPE silages than in CON silage. In conclusion, FPE could be an alternative additive to increase IVNDFD, fermentation indices, and aerobic stability of barley silage.

ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
    1. Silage production and sampling
    2. Chemical compositions
    3. Fermentation indices
    4. Microbial count analysis
    5. Aerobic stability analysis
    6. Statistical analysis
RESULTS
    1. Chemical composition
    2. Fermentation indices
    3. Microbial counts and aerobic stability
DISCUSSION
References

• Young-Ho Joo(Division of Applied Life Science (BK21Plus, Institute of Agriculture & Life Science), Gyeongsang National University)
• Dong-Hyeon Kim(Division of Applied Life Science (BK21Plus, Institute of Agriculture & Life Science), Gyeongsang National University/National Institute of Animal Science, Rural Development Administration)
• Hyuk-Jun Lee(Division of Applied Life Science (BK21Plus, Institute of Agriculture & Life Science), Gyeongsang National University)
• Seong-Shin Lee(Division of Applied Life Science (BK21Plus, Institute of Agriculture & Life Science), Gyeongsang National University)
• Dimas Hand Vidya Paradhipta(Division of Applied Life Science (BK21Plus, Institute of Agriculture & Life Science), Gyeongsang National University/Faculty of Animal Science, Universitas Gadjah Mada)
• In-Hag Choi(Joongbu University, Department of Companion Animal & Animal Resources Sciences)
• Sam-Churl Kim(Division of Applied Life Science (BK21Plus, Institute of Agriculture & Life Science), Gyeongsang National University) Corresponding author