Table 7.

Mean values of body weights of chickens after challenge with IBVs.^a,b

Strain	Group	Before immunization	10 Days after immunization	Before challenged	10 Days after challenged
LHLJ04XI	Vaccinec	147.80 ± 12.66d	250.60 ± 21.15	404.90 ± 55.06	672.40 ± 42.27
	Controle	141.70 ± 15.82	241.10 ± 24.19	413.50 ± 40.66	590.80 ± 66.26
LHB	Vaccine	143.10 ± 18.36	229.10 ± 25.41	420.00 ± 38.59	620.20 ± 46.07
	Control	120.70 ± 21.18	248.20 ± 28.47	406.00 ± 53.39	523.33 ± 48.27
LSC99I	Vaccine	113.33 ± 23.76	235.90 ± 18.79	425.30 ± 40.47	645.28 ± 81.84
	Control	152.22 ± 14.59	228.10 ± 36.98	403.10 ± 51.69	595.57 ± 78.84
LTJ95I	Vaccine	153.90 ± 18.40	242.80 ± 28.02	444.40 ± 48.92	574.50 ± 72.83
	Control	143.40 ± 17.72	227.70 ± 33.26	398.70 ± 67.95	540.00 ± 115.97
LX4	Vaccine	145.40 ± 16.45	247.15 ± 26.14	436.85 ± 46.24	648.24 ± 65.25
	Control	137.82 ± 15.24	238.40 ± 22.40	419.74 ± 41.25	602.45 ± 50.14

^aEach chicken was challenged with 0.2 mL of allantoic fluid containing 10,000 EID₅₀ of virulent IBV strain on day 21 post-immunization.

^bData were analyzed by ANOVA using the STATISTICA software. There was no significant difference between mean values of body weights of immunized chickens and the control chickens measured on the same day in the same group in this study (all p > 0.05).

^cChickens were immunized with recombinant fowlpox virus (rFPV-IFNγS1) co-expressing the infectious bronchitis virus (IBV) S1 gene and the chicken interferon-γ gene.

^dMean value of body weights ± standard deviation (g).

^eChickens were immunized with PBS.