The effects of silage additive on the microbial succession and fermentation products during ensiling period and in corn silage

Abstract

This study was conducted to determine the effect of additive teatment on microbial succession and fermentation characteristics during d 8 (0,2,4,8) of ensilimng period of com for silage and changes of nutrients contents, fermentation products and in vitro digestibbility of dry matter were investigated after d 45 of ensiling. Corn tor silage treated with addivite was divided into groups. These group. These groups were control group (K) no addivıte. AİV group (AİV) with %8 AİV solution, formic acid group (F) with %5 formic acid and HCIgroup with %5 HCI (H). The fermentation products, e.g., lactic, acetic acid and ammonia-N increased, but counts of mold and aerob bacteria decreased as ensiling time advanced. This increasing or decreasing was lower in treatment group than control group. Lactic, acetic acid and ammonia-N concentrations were lowered by addition acids, but counts of toial aerob bacteria and mold were hgher in control group than in treatment gdoups in silage (p0.05) between groups, but organic matter, crude protein, nitrogen free extract were higher than control group (P<0.05). Crude fiber content was lowered by addition acids (p<0.05). The in vitro digestibility of dry matter in silage were 61,76, 64,83, 66.34 and 65,21% in K, AİV, F ve H groups, respectively (p<0.05).

Keywords

• con silage
• additive
• filling time
• bacteria
• mold
• digestibility