Fig. 3From: Immunological aspects of the efficiency of protectotype vaccination strategy against chicken infectious bronchitisMean IgY serum level (a - data expressed as mean S/P), IgY TW level (b - data expressed as mean S/P) and IgA TW level (c - data expressed as mean OD) in different groups and day post vaccination. * Significant differences at different DPV (Kruskal-Wallis test, * as p < 0,05) in comparison to the control groupBack to article page