Abstract
Parasitic diseases cause significant economic losses in swine, including free-range swine farms, the number of which in Romania has increased in the last decades. The current study aimed to identify the parasitic profile of swine raised on two free-range (low-input) farms from Transylvania. Nine hundred sixty samples collected from weaners, fatteners, and sows were investigated by flotation, centrifugal sedimentation, modified Ziehl-Neelsen stained fecal smear, modified Blagg technique, and oocyst/egg cultures. The number of oocysts (OPG), cysts (CPG), and eggs (EPG) were counted per gram of fecal matter. The examination revealed parasitic infections with Balantidium coli, Eimeria spp., Ascaris suum, Trichuris suis, Oesophagostomum spp., Strongyloides ransomi and Cryptosporidium spp. Prevalence (P) and the mean intensity (MI) of the infections varied according to age, swine category, farm, and season. The overall prevalence in both free-range farms according to the age category was 63.2%—Eimeria spp., 70.31%—B. coli, 9.38%—Oesophagostomum spp., 3.75% S. ransomi, and 18.12% Cryptosporidium spp. in weaners. In fatteners Eimeria spp. revealed a prevalence of 50.93%, B. coli—72.5 %, A. suum—63.13%, T. suis—39.06%, and in sows Eimeria spp.—39.06%, B. coli—62.19%, A. suum—34.06%, Oesophagostomum spp.—27.19%, S. ransomi—1.56% and Cryptosporidium spp.—9.38%. The study revealed statistically significant (p < 0.05) differences between age groups, seasons, and farms for all diagnosed parasites. Further research is required to better understand the epidemiology of these infections in swine from Transylvania.
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