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Table 1 Relative expression of sialic acid in avian tissues.

From: Characterization of influenza virus sialic acid receptors in minor poultry species

Species

Age (Week)

Trachea

Lung

Large intestine

  

2,3

2,6

2,3

2,6

2,3

2,6

Duck

1

+

-

+

+

+

-

 

2

+

-

++

+

++

+

 

4

+

-

++

+

++

+

Goose

1

+

-

+

+

+

-

 

2

+

-

+

+

++

+

 

4

+

-

+

-

+

+

Pheasant

1

++

+

+

+

+

+

 

2

++

+

+

+

+

+

 

4

++

+

+

+

+

+

Turkey

1

++

+

+

+

+

-

 

2

++

+

+

+

+

-

 

4

++

++

++

++

+

-

Guinea fowl

1

+

+

+

+

+

-

 

2

+

+

+

+

+

-

 

4

+

+

+

+

+

-

Quail

1

+

+

+

+

+

-

 

2

+

+

+

+

+

-

 

4

+

+

+

+

+

-

  1. - no expression, + minimal expression, ++ moderate-high expression