Coccidiosis vaccination was effective in broilers challenged with Eimeria tenella but only after vaccinal oocysts cycled twice, Laura Tensa, DVM, told Poultry Health Today. Tensa and colleagues at the University of Georgia conducted a study after a poultry integrator reported problems with coccidiosis due to Eimeria tenelladespite the use of multiple coccidiosis vaccines and in-feed anticoccidial […]