Table 4.

TUNEL assay results for the bursa of Fabricius

Figures in columns marked with the same lowercase superscript letters are not significantly different (p > 0.05) while those marked with the different lowercase superscript letters are significantly different according to age (p < 0.05). Different capital superscript letters (A, B) indicate significant differences in the apoptotic lymphocyte density between the follicular cortex and medulla in the same age group. On E24, only some lymphoid follicles were found to have a distinct medulla and cortex. Asterisks (^*) indicate that the data were estimated for lymphoid follicles with a distinct medulla and cortex. ALD: apoptotic lymphocyte density.