Over the recent 20 years, for the first time, the disease of swine perfringens has been studied in the Aragatsotn region of RA and related epidemiological analysis has been conducted. To identify A, C, and D serological types of Cl. Perfringens and special diagnostic sera produced by the Kursk biofactory were used. It has been found that the main serological infection type of swine perfringens is C and sometimes A and D subtypes. In the pig breeding farms of the mentioned region about 6887 heads of swine (aging from 3 days to 1 year old) were registered. Per the research results, about 45 out of 72 communities were recognized as insecure/vulnerable. As to the above-stated animal number, it should be mentioned, that 1722 heads of swine fell down, whereas 5510 were considered bacteria carriers. Thus, as a result of epidemiological analysis, the morbidity (bacteria carrying rate), mortality, insecurity/vulnerability, and focality coefficients (indicators) have made 0.80 (80 %), 0.25 (25 %), 0.63 (63 %), and 122 animals, respectively.
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