Abstract
The intensive development of domestic poultry farming determines the urgent need to achieve the environmental safety of the industry's products, which excludes the introduction of feed antibiotics into the poultry diet. In addition, the existing instability in the market for domestic biological products, whose share is currently no more than 40% and continues to decline steadily, dictates the need to search for approaches to import substitution. An example of a current trend in poultry farming is the use of domestic veterinary drugs of natural origin, which include probiotic feed additives containing cultures of live lactic acid microorganisms, typical representatives of which are enterococci. A wide search for bio-technologically valuable microorganisms among representatives of the genus Enterococcus allowed us to isolate and characterize the Enterococcus faecium ICIS 96 strain, which is promising for creating a probiotic feed additive. It is known from the literature that lactic acid microorganisms are able to regulate the metabolism of poultry. It is appropriate to assume that the culture of E. faecium ICIS 96, when introduced into the diet of poultry, can have a beneficial effect on energy metabolism. Clarification of this assumption determined the purpose of our work.
Highlights
The poultry industry is one of the most intensive and dynamic sectors of the agroindustrial complex in many countries and in the future, a further increase in the production and consumption of poultry products is expected
The main indicator of carbohydrate metabolism is the concentration of sugar in the blood, mainly glucose, which is an important, though not the only source of energy [14]
The results of our research showed that the concentration of glucose in the blood of broilers was not unambiguously dependent on the use of E. faecium ICIS 96 culture in the diet
Summary
The poultry industry is one of the most intensive and dynamic sectors of the agroindustrial complex in many countries and in the future, a further increase in the production and consumption of poultry products is expected. The use of feed antibiotics has been banned in many countries, since this creates a threat of the emergence and spread of antibiotic-resistant strains of microorganisms, contributes to the development of dysbacteriosis, metabolic disorders in poultry, and leads to the contamination of livestock products with residual amounts of antimicrobial drugs [2]. To increase the yield of marketable products per unit area and reduce the fattening time in poultry farming all over the world, various feed additives are used [3,4,5,6]. An example of the current trend in poultry farming is the use of domestic veterinary preparations of natural origin, which include probiotic feed additives containing cultures of live lactic acid microorganisms, typical representatives of which are enterococci
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