Effect of Microbial and Chemical Combo Additives on Nutritive Value and Fermentation Characteristic of Whole Crop Barley Silage.
This study was conducted to assess the effects of microbial and chemical combo additives on nutritive values, fermentation indices and aerobic stability of whole crop barley silage. Barley forage (Youngyang) was harvested at about 30% dry matter (DM) by treatments, chopped to 5 cm length and treated with distilled water only (CON), Lactobacillus plantarum (INO), propionic acid (PRO) or an equal mixture of INO and PRO (MIX). Barley forages were ensiled in 4 replications for 0, 2, 7, and 100 days. On 100 days of ensiling, MIX silage had higher (p<0.05) in vitro DM digestibility than CON silage, but lower (p<0.05) acid detergent fiber concentration. The pH in all treated silages was lower (p<0.05) than CON silage. The MIX silage had higher (p<0.05) lactate concentration and lactate to acetate ratio than in CON, but lower (p<0.05) yeast count. Aerobic stability in CON, PRO, and MIX silages were higher (p<0.05) than in INO silage. It is concluded that microbial and chemical combo additives using L. plantarum and propionic acid could efficiently improve nutritive values of barley silage in terms of increased in vitro DM digestibility compared to other treatments. In addition, all treatments except CON reduced yeast count which is the initiate microorganism of aerobic spoilage.
Division of Applied Life Science (BK21 Plus & Institute of Agriculture and Life Science), Gyeongsang National University, Jinju 660-701, Korea.
Dong Hyeon
DH
Kim
Division of Applied Life Science (BK21 Plus & Institute of Agriculture and Life Science), Gyeongsang National University, Jinju 660-701, Korea ; Bangladesh Livestock Research Institute, Dhaka 1314, Bangladesh .
Sardar M
SM
Amanullah
Division of Applied Life Science (BK21 Plus & Institute of Agriculture and Life Science), Gyeongsang National University, Jinju 660-701, Korea.
Hyuk Jun
HJ
Lee
Division of Applied Life Science (BK21 Plus & Institute of Agriculture and Life Science), Gyeongsang National University, Jinju 660-701, Korea.
Young Ho
YH
Joo
Division of Applied Life Science (BK21 Plus & Institute of Agriculture and Life Science), Gyeongsang National University, Jinju 660-701, Korea.
Sam Churl
SC
Kim
Aerobic Stability; Barley Silage; Fermentation Indices; Lactobacillus Plantarum; Propionic Acid