[Inhibitory effect of oil emulsions on the oocyst infectiveness of Eimeria tenella].

Comparative studies were carried out on the inhibitory effect of some oleoemulsions on the acute course of an experimental coccidial infection caused by Eimeria tenella. Such effect was demonstrated with the oral application of sporulated oocysts both with the complete and incomplete Freund's adjuvant and with oleum ricini and oleum helianthi in combination. The results of histopathologic investigations showed that the two types of Freund's adjuvant inhibited the rapid and joint excysting of a large number of oocysts. Inhibited was the invasion of sporozoits in the epithelial cells of the mucous membrane and thus the acute course of the coccidial infection caused by Eimeria tenella.