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Table 5 Experimental infections with ORT/chicken/Shandong/2011 and H9N2/chicken/Shandong/2011

From: Co-infection of broilers with Ornithobacterium rhinotracheale and H9N2 avian influenza virus

Groups

No.

No. survival

Survival rate (%)

ORT recovery

H9N2 recovery

1

10

3

30.0

3

3

2

10

2

20.0

2

2

3

10

7

70.0

7

7

4

10

5

50.0

5

5

5

10

9

90.0

9

9

6

10

10

100.0

0

0

  1. Indications:
  2. Group 1 chickens were inoculated intraperitoneally with 10 LD50 of ORT/chicken/Shandong/2011 in 0.5 ml, and 100 ELD50 of H9N2/chicken/Shandong/2011 was administrated intranasallyin 0.2 ml at the same time.
  3. Group 2 chickens were given 10 LD50 of ORT/chicken/Shandong/2011intraperitoneally in 0.5 ml and received 100 ELD50 of H9N2/chicken/Shandong/2011intranasallyin 0.2 ml three days later.
  4. Group 3 birds were inoculated intranasally with 100 ELD50 of H9N2/chicken/Shandong/2011in 0.2 ml and three days later received intraperitoneally with 10 LD50 of ORT/chicken/Shandong/2011in 0.5 ml.
  5. Group 4 birds were inoculated intraperitoneally with 10 LD50 of ORT/chicken/Shandong/2011in 0.5 ml.
  6. Group 5 chickens were given 100 ELD50 of H9N2/chicken/Shandong/2011intranasally in 0.2 ml.
  7. Group 6 birds received the sterile physiological saline intraperitoneally as a negative controlin 0.5 ml.