Research Article

Comparative Study of the Immune Response Induced by an Argentinian Classical Strain of IBDV in Two Chicken Breeds

Figure 1

Bursa/body weight (BB) ratios of Negra INTA and White Leghorn chickens infected with IBDV. Chickens were sacrificed and weighted at different times postinfection. Bursae were extracted and also weighted. Individual BB ratios were determined by the formula (bursa weight (g)/body weight (g)) × 1000. The box plots represent data distribution. Different letters indicate significant differences among groups (one-way ANOVA test and Tukey post-hoc test, ).