Table 4 Observed pathologies and their importance factor (w) and percentages (%) in catfish from São Marcos Bay

Liver

Inflammatory response

Profusion and dilation of blood vessels (L1)

1

A1 = 0/A2 = 93.33

A1 = 43.33/A2 = 66.66

Presence of melanomacrophages (L2)

1

A1 = 0/A2 = 93.33

A1 = 32.33/A2 = 66.66

Regressive changes

Nuclear pleomorphisms (L3)

2

A1 = 0/A2 = 66.66

A1 = 23.33/A2 = 66.66

Necrosis (L4)

3

A1 = 0/A2 = 90.00

A1 = 16.66/A2 = 86.66

Progressive changes

Lipidosis (L5)

1

A1 = 0/A2 = 66.66

A1 = 16.66/A2 = 86.66

Eosinophilic hepatocellular alteration (L6)

2

A1 = 0/A2 = 86.66

A1 = 16.66/A2 = 66.66

Granulomatous lesions (L7)

2

A1 = 0/A2 = 86.66

A1 = 43.33/A2 = 90.00

Presence of eosinophilic bodies (L8)

2

A1 = 0/A2 = 90.00

A1 = 66.66/A2 = 86.66

Gills

Circulatory disturbances

Lamellar capillary aneurism (L9)

1

A1 = 0/A2 = 63.33

A1 = 16.66/A2 = 96.66

Regressive changes

Epithelial lifting (L10)

1

A1 = 0/A2 = 63.33

A1 = 90.00/A2 = 86.66

Epithelial desquamation (L11)

1

A1 = 0/A2 = 23.33

A1 = 23.33/A2 = 43.33

Deformation of lamellae (L12)

1

A1 = 0/A2 = 90.00

A1 = 16.66/A2 = 66.66

Mucous (goblet) cell degeneration (L13)

2

A1 = 0/A2 = 90.00

A1 = 33.33/A2 = 86.00

Progressive changes

Hypertrophy of squamous epithelia (L14)

1

A1 = 0/A2 = 23.33

A1 = 23.33/A2 = 16.66

Lamellar fusion (L15)

1

A1 = 0/A2 = 93.33

A1 = 43.33/A2 = 93.33

Epithelial hyperplasia (L16)

2

A1 = 0/A2 = 93.33

A1 = 16.66/A2 = 86.33