Antibody Response in Broiler Chickens Infected with Different Developmental Stages of Eimeria Tenella

Antibodies (IgG or IgY) titre values were higher in broilers sera infected with sporulated oocyst and merozoites reaching a peak on day 10 of post primary and secondary infections and day 5 post tertiary infection in sera of broilers (treated and non- treated). At tertiary infection, antibodies increases at day 5, 7, 11 and 14 indicating that antibodies increases in broilers infected with the invasive or zoite stages, (sporozoite and merozoite) of the parasite.. There was a significant difference in the antibody output between the sera of the broiler groups (p< 0.05).