Table 1 Body weight (BW), body weight gain (BWG), Median clinical signs scores (CSS), HI antibody titers (log2) and mortality % of vaccinated quails and supplemented with vitamin C and Arabic gum (AG) (Mean ± S.D)

Initial BW (g) (49 days old)

198.0 ± 1.9^a

201.6 ± 4.6^a

199.7 ± 7.5^a

199.8 ± 3.2^a

205.1 ± 5.9^a

Final BW (g) (5 weeks PV)

221.9 ± 3.8^c

212.3 ± 3.2^d

236.4 ± 7.5^b

221.5 ± 4.1^c

245.2 ± 2.3^a

BWG (g)

23.9 ± 0.26^c

10.7 ± 0.38^d

36.7 ± 0.29^b

21.7 ± 0.12^c

40.1 ± 0.35^a

 2nd

0.0 ± 0.0^e

0.35 ± 0.21^a

0.22 ± 0.17^b

0.15 ± 0.21^c

0.07 ± 0.01^d

 5th

0.0 ± 0.0^e

0.42 ± 0.21^a

0.32 ± 0.07^b

0.26 ± 0.16^c

0.09 ± 0.02^d

 9th

0.0 ± 0.0^c

0.23 ± 0.81^a

0.15 ± 0.02^b

0.12 ± 0.21^b

0.0 ± 0.0^c

 14th

0.0 ± 0.0^c

0.07 ± 0.01^a

0.03 ± 0.01^b

0.02 ± 0.01^b

0.0 ± 0.0^c

  0

0.0 ± 0.0

0.0 ± 0.0

0.0 ± 0.0

0.0 ± 0.0

0.0 ± 0.0

  1st

0.0 ± 0.0^c

0.0 ± 0.0^c

0.0 ± 0.0^c

2.8 ± 0.5^b

4.2 ± 0.7^a

  2nd

0.0 ± 0.0^c

0.0 ± 0.0^c

0.0 ± 0.0^c

3.6 ± 1.4^b

5.6 ± 0.5^a

  3rd

0.0 ± 0.0^c

0.0 ± 0.0^c

0.0 ± 0.0^c

4.3 ± 1.8^b

6.3 ± 0.9^a

  1st

0.0 ± 0.0^e

2.6 ± 0.1^d

3.5 ± 0.4^c

4.6 ± 0.4^b

6.6 ± 1.2^a

  2nd

0.0 ± 0.0^e

2.9 ± 0.4^d

4.1 ± 0.2^c

5.3 ± 0.6^b

7.1 ± 0.3^a

Mortality % PC with H9N2

0/30 (0)^d

3/30 (10)^a

2/30 (6.7)^b

1/30 (3.3)^c

0/30 (0)^d