The influence of bacterial cultures on the conservation of green fodders

Abstract

Properties of microbial cultures were carefully studied and strains of lactic and propionate bacteria, which meet requirements imposed to the preserving medicines, are chosen. The following strains were selected: Bifidobacterium bifidum N1 as a lyophilizate, Propionibacterium freudenreichii subsp. shermanii - KM 186 in the form of a liquid preparation, Lactobacillus plantarum 8P-A3 in the form of lyophilizate. To obtain this bacterial concentrate, a series of experiments was conducted to select the necessary concentrations and to create the optimal composition of the starter for each type of silicate raw material. A positive result was the absence of extraneous micro flora in the stored biomass after a month. The quality of harvested silage was judged by the content of organic acids in the herbaceous mass. The main indicator of the effectiveness of lactic acid bacteria for leaven is the accumulation of lactic acid, propionic acid - propionic acid. The content of acids in the siloing of the labor-prone (amaranth red in the phase of the milk-wax ripeness, quinoa) and light-sown crops (corn at the beginning of the phase of wax ripeness (end of the phase of milky wax ripeness), sunflower one-year-old oilseed at the beginning of flowering) was determined in accordance with GOST. The high content of lactic and propionic acids guarantees good preservation of the silage. Their low content means a lack of sugars in the mass or indicates that oxygen penetrates into the mass.