Table 3.

Body weight and relative immune organs weight (n = 20)

Virus	Body weight (g)	Relative thymus weight (%)	Relative bursa weight (%)
bac-GX0101	91.9 ± 9.1 a	0.21 ± 0.06 a	0.2 ± 0.07 a
GX0101ΔMeq	116.6 ± 11.9 b	0.42 ± 0.08 b	0.38 ± 0.08 b
Control	125.9 ± 16.7 b	0.48 ± 0.09 b	0.45 ± 0.12 b

All chickens were inoculated with 1000 PFU of the indicated virus by a subcutaneous route. The numbers in the table indicate: mean ± standard deviation. Same letters indicate that the differences were not significant (P > 0.05), different letters indicate that a significant difference (P < 0.05).