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Leah VPH > Fish practical > Flashcards

Fish practical Flashcards

1
Q

Label

A
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2
Q

Label

A
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3
Q

What is this

A

Gills

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4
Q

What is this

A

diseased gills

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5
Q

What histopathology samples are collected for fish

A

Gill, heart, liver, pyloric caecae, spleen, hindgut, kidney, skin/muscle

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6
Q

From where are blood samples collected in fish?

A

Blood can be sampled from caudal/tail vein

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7
Q

What are signs of disease seen on a fish farm

A

Elevated mortality

Inappetance

Poor growth/ill thrift

Moribund/lethargic individuals (best for diagnostic sampling!)

Signs of respiratory distress/gasping

Erratic swimming behaviour (e.g. corkscrewing)

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8
Q

What are external signs of disease in fish

A

Discolouration (pale or dark)

Congestion/bleeding skin (especially fin bases)

Exophthalmia or hyphaema

Skin ulcers or wounds

Gil pathology- pale, mucus patches, bleeding etc

Presence of external parasites

Fin erosion

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9
Q

What sign of disease is seen here?

A

Furuncle in skin

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10
Q

What sign of disease is seen here?

A

external ulcer

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11
Q

What sign of disease is seen here?

A

ulcerative jaw lesions

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12
Q

What sign of disease is seen here?

A

exophthalmia

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13
Q

What sign of disease is seen here?

A

skin haemorrhage/congestion (cardiomyopathy syndrome)

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14
Q

What sign of disease is seen here?

A

gill mucus plaques

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15
Q

What sign of disease is seen here?

A

sea lice

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16
Q

What are internal signs of disease in fish?

A

Congestion/discolouration of tissues

Bleeding/haemorrhage (petechiae to frank bleeding)

Ascites

Focal lesions in viscera or muscle

17
Q

What sign of disease is seen here?

A

Swim bladder haemorrhage (bacterial septicaemia)

18
Q

What sign of disease is seen here?

A

Petechial bleeding on swim bladder surface (bacterial - Aeromonas salmonicida)

19
Q

What sign of disease is seen here?

A

Ecchymotic haemorrhage in liver (bacterial - Moritella viscosa)

20
Q

What sign of disease is seen here?

A

Blood clot obscuring heart due to ruptured atrium (Viral - Cardiomyopathy syndrome)

21
Q

What sign of disease is seen here?

A

Congested liver with fibrinous pseudomembrane (viral - Cardiomyopathy syndrome)

Leah VPH (28 decks)

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