Influence of the composition of the oak bark extract and chlortetracycline on hematological blood parameters of broiler chickens

Poultry farming is one of the most profitable and highly productive branches of agriculture. However, despite the achievements, there are many unresolved problems remaining in industrial poultry breeding. In particular, violating technological rules of feeding and housing and an amiss environmental state lead to deterioration of the immune system and development of a number of pathologies, which heavily reduces the productivity of this area of agriculture. Based on the above, much attention is focused on the search for drugs that would optimize the metabolism in the bird’s organism, struggle with infectious agents, and increase the productivity of an organism. The study allows to comprehensively examine the properties of plants containing phytobiotic components and the use of modern technologies for producing and standardizing these components, when their experimental and manufacturing approbation lets widely apply plant extracts to animal feeding as dietary supplements of the latest generation based on raw materials of natural origin.