Improvement of technological methods of raw fodder grain preservation

Abstract

Increasing the efficiency of the livestock industry is largely determined by the quality of the most valuable component of diets - forage grain. The properties of reliable preservation of its quality today possess the technology of preservation of raw fodder grain with chemical and biological preparations. Biopreparations with strains of lactic acid bacteria are the cheapest and most environmentally safe. Among chemical preparations powdered sulphur is cheap and environmentally safe one. The two-component mixture of L. casei + L. lactis had a certain advantage for preserving raw barley grain from three strains of homofermentative lactic acid bacteria: Lactobacillus species (L. species), Lactobacillus casei (L. casei) and Lactococus lactis (L. Lactis). The mixture of L. casei + L. lactis in a ratio of 1:1 and a dose of 1 l/40t was called Biosil NN. When processing grain with a moisture content of about 35 % using Biosil NN, it was optimally acidified with lactic acid, which is dominant in the composition of fermentation products, and had a high energy value. Careful grain ramming enhanced the preservation effect of Biosil NN. A similar effect on the preserved grain was provided by powdered sulphur at a dose of 1 kg/t. The most preserving effect of preparation was at an average degree of compaction of the flattened grain with a moisture content of about 25 %. According to the quality of fermentation of preserved grain the chemical preservative Promir had worse results than those stimulated with Biosil NN and powdered sulfur.