Nazarenko S. Sanitary and hygienic assessment of carp cultivation and measures to provide quality of carps.

The results of the study of the sanitary and ecological condition of the rivers and ponds of the fish farms of the Dniper river on the territory of Sumy region by hydrochemical, toxicological and microbiological parameters have been given in the thesis. The exceeding of the tolerance limit concentration (TLC) by CCO (chemical consumption of oxygen), as well as the content of ammonium salt, manganese and iron has been revealed in the water in the rivers; in the ponds - by OMN (overall microbial number) in addition to the above mentioned. It has been determined that OMN of the water in the ponds was higher than in the rivers, the lowest indices of the OMN of water in the ponds were in winter, the highest indices were revealed in spring. It has been proved that fishing methods has an impact on the microbial contamination of the cover of fish body. The dynamics of the sanitary and bacteriological condition of the soil on the bed of the ponds in summer has been examined. It has been determined that cultivation of clover (Melilotus albus) in the soil of the bed of the pond during the treatment at intensive decreases its contamination by microorganisms by 8,43 times (p?0,001) as compared to the control pond. The effectiveness of the use of the chlorine oxide solution (IV) as a disinfectant of fishing devices, fish breeding equipment and live fish container has been substantiated in the comparative examination. The above disinfectant has an advantage over formalin as an ecological safe product. It has been shown that ultraviolet radiation effectively disinfects the test-surfaces contaminated by microorganisms that prove its high efficacy as a fish breeding equipment disinfection method. The efficacy of the use of the disinfecting product VetOx-1000 for prophylactic treatment of carps after transportation before the release into the pond has been experimentally proved. High economic efficiency of the clover (Melilotus albus) cultivation has been detected during the treatment of ponds to disinfect the soil and to increase its productivity.