Use of Animal Product Processing Waste in Oyster Mushroom Production Technology

Abstract

The article presents a study of the possibility of using animal husbandry processing waste as a nutrient additive to compositions of synthetic fermented substrate for the cultivation of oyster mushrooms. Wastes that are of low value for use in other branches of agriculture and industry and are mainly disposed of as solid waste by burial were investigated. In modern economic conditions, it is important to reduce the cost of the substrate, one of the possible ways to achieve this goal is the use of cheaper raw materials. Meals and bran are traditionally used to balance the substrate in terms of nitrogen content. These products are waste products from the processing of agricultural crops and are also classically used to balance the rations of farm animals and poultry. This creates competition between industries and increases the price of raw materials, which ultimately causes an increase in product prices. Therefore, the search and research of alternative balancing components for the preparation of oyster mushroom substrate, which are not competitive for animal husbandry, is relevant. The analysis of the obtained results made it possible to form the following conclusions: their use as additives for the preparation of the substrate will allow them to be used in further processing, with the obtaining of additional products of mushroom production, the study of the growth of colonies of oyster mushrooms using the selected additives made it possible to determine the best options: yes, the addition of skin shavings and the addition of pores It does not inhibit the colonization of these additives, but, on the contrary, increases the growth rate of colonies compared to colonies developed without additional nutrition; the obtained data of the laboratory experiment can be considered primary and those that require further research, including when using other methods of preparation of additives (sterilization, solid-state fermentation), as well as verification in scientific and economic experiments on the determination of technological properties in substrate compositions and the calculation of biological effectiveness and productivity of oyster mushrooms and other saprophytes.