Shkromada O. Experimental substantiation of the use of complex disinfectants in pig-breeding enterprises

The theoretical generalization and experimental substantiation of the integrated use of the new disinfecting preparations "Bi-destm" and "Biotsidin" in pig-breeding have been presented in the thesis. It has been stated that the disinfectants used on the pig-breeding farms of Ukraine have insufficient efficacy and it proves the necessity of the search of new preparations. The species composition of conditionally pathogenic microflora in pig-breeding premises of various technological groups had different dynamics. In the farrowing, rearing and fattening pens the relative content of E. coli reduced with the age but the content of Iersinia increased. It has been stated that the preparations "Bi-destm" and "Biotsidin" of mark G belong to safety class IV, "Biotsidin" of mark D - to safety class III. With the appropriate concentration and exposure the preparation "Bi-destm" completely destroys the viruses of Aujeszky's and Teschen diseases, causes the retardation of the growth of E. coli and S. аureus cultures, completely disinfects test - objects contaminated with the causative agents of tuberculosis M. fortuitum, destroys the eggs of helminths of Ascaris suum and coccidian oocytes of Eimeria debliecki. Disinfectant "Biotsidin" of mark G completely inactivates microorganisms E. coli and S. aigai on the working surface of the test-objects; it causes the absolute lysis of oocysts of swine eimeria Eimeria debliecki. The preparation "Biotsidin" of mark D completely destroys micro-organisms S. faecalis, S. choleraesuis, P. vulgaris, S. enterіtіdіs, E. coli, and microscopic fungi of the genera Aspergillus, Cladosporium, Fusarium and Penicillium on the working surface of the test-objects. The use of complex disinfectants has a positive impact on the microclimate condition of the pig premises. When the premises were treated by the preparation "Biotsidin" of marks G and D the parameters of relative humidity, the content of ammonia, hydrogen sulfide and the total microbial contamination decreased. When using disinfectants the average daily live weight gain and the indices of nonspecific resistance of piglets increased. When treating the premises with complex disinfectants the pork was in conformity with the requirements of good-quality meat. When using disinfectants no morphological changes in the parenchymal organs of the piglets were detected. The production test proved the economic efficiency of the disinfection treatment of pig-breeding premises by the disinfectants "Bi-destm" and "Biotsidin".