UDC: 579.64/579.62
DOI 10.36461/NP.2023.67.3.015

MICROBIOTA OF TURKEY INTESTINES AND LITTER MATERIALS: FEATURES AND SIGNIFICANCE IN THE POULTRY WASTE DEGRADATION
D.Yu. Ilyin, Candidate of Biological Sciences, Associate Professor, G.V. Ilyina, Doctor of Biological Sciences, Professor, L.L. Oshkina, Candidate of Agricultural Sciences, Associate Professor, A.V. Ostapchuk, Candidate of Biological Sciences, Associate Professor
Penza State Agrarian University, Penza, Russia, tel. (8412)628-151, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Annotation. The intestinal microflora of a healthy bird is an important component of the body's natural resistance and immune reactivity, that is, the key to productivity. The safety of droppings to be stored is also related to the composition of the intestinal microflora of poultry. The degradation of waste such as litter masses, determined by the activity of microorganisms, is an important environmental aspect. In addition, it should be remembered the importance of microflora, including resident microflora, in subsequent processes of natural degradation of droppings at storage sites. The aim of the study was to determine the composition of the intestinal microflora of turkey based on the analysis of manure and the native microbiota of litter masses to assess the role of microorganisms in the degradation of these materials. The identification of microorganisms was carried out using generally accepted microbiological methods. The biological safety of litter materials was assessed by analyzing the content of pathogenic and oopportunistic pathogenic microflora. The composition of the native microflora of litter masses was studied, during which the predominance of the proportion of resident bacteria in the gastrointestinal tract of poultry was found. The representation of bacteria, fungi and actinomycetes in substrates at different stages of decomposition was evaluated. The initial stage of destruction of the nitrogen-rich waste mass is the processes of ammonification, in the initiation of which the native microflora plays an important role. The dynamics of the microbiota of litter masses during the annual storage period has been studied. Aspects of substrate degradation with the participation of native and zymogenic microflora have been studied. Significant differences in the degree of destruction of samples taken from different sites of the waste storage landfill have been established, which may be explained by the heterogeneity of the microflora. The expediency of developing technological methods of controlled degradation based on the use of degraders with known functional properties in the condition of controlled physico-chemical parameters of the substrate has been established.
The research was carried out at the expense of a grant from the Russian Science Foundation No. 23-26-10059, http://rscf.ru/project/23-26-10059/.
Keywords: intestinal microflora of birds, biological safety, microflora of manure, biodegradation of poultry waste.

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