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Effects of Microbial Additives on Chemical Composition and Fermentation Characteristics of Barley Silage

  • Amanullah, S.M. (Division of Applied Life Science (BK21Plus, Institute of Agriculture and Life Science), Gyeongsang National University) ;
  • Kim, D.H. (Division of Applied Life Science (BK21Plus, Institute of Agriculture and Life Science), Gyeongsang National University) ;
  • Lee, H.J. (Division of Applied Life Science (BK21Plus, Institute of Agriculture and Life Science), Gyeongsang National University) ;
  • Joo, Y.H. (Division of Applied Life Science (BK21Plus, Institute of Agriculture and Life Science), Gyeongsang National University) ;
  • Kim, S.B. (National Institute of Animal Science, RDA) ;
  • Kim, S.C. (Division of Applied Life Science (BK21Plus, Institute of Agriculture and Life Science), Gyeongsang National University)
  • Received : 2013.10.01
  • Accepted : 2013.11.29
  • Published : 2014.04.01

Abstract

This study examined the effects of bacterial inoculants on chemical composition and fermentation indices of barley silage. Barley forage (Youngyang) was harvested at 24% dry matter (DM) and wilted to 47.9% DM. The wilted barley forage was chopped to 3-5 cm length and applied with no inoculant (CON), L. plantarum ($1{\times}10^{10}cfu/g$, LP) or Effective Microorganisms ($0.5{\times}10^9cfu/g$, EM). Then the forages were ensiled in four replications for each treatment in 20 L mini silos and stored for 100 days. The contents of crude protein and ether extract were higher in CON silage ensiled for 100-d, while the contents of DM and crude ash were higher in EM silage (p<0.05). The contents of ADF, NDF and hemicellulose as well as the in vitro DM digestibility were not affected by microbial inoculation (p>0.05). The pH, ammonia-N concentration and lactate to acetate ratio were higher (p<0.05) in CON silage, while lactate concentrations were higher (p<0.05) in CON and LP silage. Acetate concentration and lactic acid bacteria was increased (p<0.05) by both inoculants (LP and EM), but propionate concentration and yeast was increased (p<0.05) by EM and LP, respectively. These results indicated that the fermentation quality of barley silage was improved by the application of bacterial inoculants.

Keywords

Aerobic Stability;Bacterial Inoculant;Barley Silage;Fermentation Indices

Acknowledgement

Grant : Cooperative Research Program for Agriculture Science and Technology Development

Supported by : Rural Development Administration

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