Hejlicek K. and 1. Literak: Prevalence of Toxoplasmosis in Pigs in the Region

The occurrence of antibodies against Toxoplasma gondii and of T. gondii itself were monitored in pigs in the district of Strakonice in South Bohemia (Czech Republic) during 1979-1990.. A total number of 2,635 slaughter pigs were examined. The antibodies were found in 5.9 % out of 2,616 samples by Sabin-Feldman test (SFT, titre ~ 4), in 0.3% out of 1,179 samples by complement fixation test (CFT, titre ~ 10), and in 0.1 % out of 2,306 samples by microprecipitation in agar gel (MPA). T. gondii was demon-strated in 1.6 % out of the total number of 2,447 examined animals. Altogether 57 pigs, which were slaughtered out of the slaughterhouse, were examined, and the antibodies were found in 35.1 % (SFT), and 14.0 % (CFT). T. gondii was detected in 10.2 % of the pigs. Samples of blood serum were examined in 230 pigs in 10 small-scale farms. The antibodies were detected in 30.9 % (SFT; out of 230 examined animals), in 9.5 % (CFT; out of 158 examined animals), and in 0.5 % (MPA; out of 202 examined animals). Most positive cases were found both by serological tests and by the isolation o