The effect of biological additive on the fermentation quality of whole-crop rye silage

Abstract

The aim of this research was to find out the changes in fermentation parameters of whole-crop rye silage after adding the biological additive. Two variants of rye silage were used in the experiment: variant C (control without additive) and variant A (silage with the addition of additive). The wilted whole-crop rye was treated with strains of lactic acid bacteria (Pediococcus acidilactici, Lactobacillus paracasei and Lactococcus lactis 1.25•10 11 CFU g -1 ) in a dose of 2 g of additive + 25 ml of water per 1 ton of matter. Both silage variants were ensiled with a vacuum pack device and after 2 months of storage, average samples were taken to determine the dry matter content, fermentation products, acidity of water extract, pH and the degree of proteolysis by appropriate methods. Treatment of rye silage with a microbial silage additive affected the quality of rye silage by a statistically significant (P <0.05) higher content of lactic acid and acidity of water extract. The lower content of acetic acid, alcohols, pH value and the degree of proteolysis were also statistically significant (P <0.05). The results confirmed the positive effect of the addition of Pediococcus acidilactici, Lactobacillus paracasei and Lactococcus lactis on the quality of the fermentation process of rye silage.

Effects of sodium diacetate and microbial inoculants on fermentation of forage rye

“…Despite the high concentration of soluble sugars in small-grain forages, the likelihood of producing high-quality silage can be increased by using biological and chemical additives, particularly when the forage dry matter (DM) concentration at ensiling is suboptimal [5,10,11]. Moreover, the hollow stems of winter forage rye may provide air space during ensiling and create aerobic environment in silo [12].…”