Etiology, epidemiological monitoring and therapeutic control of bacterial enteritis among suckling pigs in Bulgaria.
2010
Lyutskanov, M., Thracian University, Stara Zagora (Bulgaria) | Urumova, V., Thracian University, Stara Zagora (Bulgaria)
An analysis of the incidence of neonatal bacterial enteritis was performed in 12 intensive pig farms from different regions of Bulgaria. A total number of 380 faecal samples from live piglets and intestinal content of fresh carcasses were examined. Bacterial findings were observed in 89.2% of samples, and isolates belonged to 11 taxonomic categories. Enterotoxigenic E. coli - ETEC predominated - 58.1% of all samples, followed by C. perfringens with 14.1%. Colienterotoxicosis was observed mainly during the first week of piglets life and most commonly affected 50–75% of pigs from di¬seased litters. The mean lethality was 48.3%, and cumulative mortality – 18% for the respective epidemic outbreak. Autumn-winter and winter-spring prevalence was higher. The sensitivity of ETEC isolates towards gatifloxacin, levofloxacin and enrofloxacin, colistin, neomycin and gentamicin was preserved. A relatively high resistance was established towards doxycycline - 55.4% and spectinomycin - 42.4%.
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