Sidorenko M.L., Buzoleva L.S., Sleptsova N.A., Boyko A.N.
Вестник Алтайского государственного аграрного университета 2018; (4): 68-74
The intensive development of animal and poultry farming in Russia is associated with the increase in livestock head number, however, the problem of organic waste utilization generates a new range of problems caused by the formation of significant areas with an increased level of biological hazard areas around livestock and poultry operations. This paper presents the outcomes of experiments on chicken manure decomposition by microbial strains isolated from soil and water ecosystems contaminated by organic wastes including livestock and poultry manure. The strains with the greatest decomposing potential towards lipids, proteins and carbohydrates were identified. It was found that the identified microorganisms had the ability to decompose lipids in 82% of cases, carbohydrates in 64% and proteins in 73% of cases. The best overall activity was shown by the strain B. subtilis F-III-1; the lowest activity was observed in the strains of S. cerevisiae. Decontaminating and anthelmintic activity of cultures of microorganisms of the genera Bacillus and Trichoderma was proved. All the strains under study inhibited the growth of Listeria monocytogenes 4bNCTC10527 and Escherichia coli. Inhibitory effect on the growth of Yersinia pseudotuberculosis 512 and Salmonella typhimurium 13095 was exerted only by 50% of the studied strains. The highest inhibitory activity against pathogens was shown by the strain of Trichoderma Based TX-22, the lowest activity - by S. cerevisiae X-1 and S. cerevisiae N-1. The poultry manure samples became loose and much drier, and an unpleasant ammonia smell disappeared. Moisture content decreased from 63% to 24%, pH - from 9.4-9.6 to 7.0-7.5.
