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Table 1 Overview of gross pathology and bacteriology at the time of euthanasia.

From: Assessment of automated assays for serum amyloid A, haptoglobin (PIT54) and basic biochemistry in broiler breeders experimentally infected with Escherichia coli

 

Infected

(n = 14a)

Control

(n = 15)

 

Gross pathology

Microbiology

Gross pathology

Microbiology

Airways

Systemic

Airways

Systemic

Airways

Systemic

Airways

Systemic

2 dpi

5/5b

2/5

5/5

2/5

1/5

0/5

2/5c

0/5

4 dpi

3/5

1/5

5/5

3/5

0/5

0/5

3/5c

1/5c

6-7d dpi

4/4

2/4

3/4

0/4

0/5

0/5

0/5

0/5

  1. dpi: days post-infection, n number.
  2. aOne animal was euthanised preterm due to animal welfare concerns.
  3. bAt 2 days post-infection (dpi), lesions were evident in the airways of five out of five euthanised animals.
  4. cBacterial growth (sparse) consisting of mixed cultures.
  5. dAll infected birds were euthanised by the end of 6 dpi due to mild clinical signs.