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which is the most common bacterial disease in fres
Question:
Which is the most common bacterial disease in freshwater aquaculture?
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Columnaris → bacterial → common in warm water fish.
ICAR AIEEA (PG) - 2025
ICAR AIEEA (PG)
Updated On:
Jul 4, 2025
Columnaris
Argulosis
Ichthyophthiriasis
Dactylogyrosis
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The Correct Option is
A
Solution and Explanation
Step 1:
Columnaris is caused by Flavobacterium columnare.
Step 2:
It affects gills, fins, skin — causes lesions, ulcers.
Step 3:
Argulosis is parasitic (Argulus), Ichthyophthiriasis = white spot (protozoan), Dactylogyrus is monogenean parasite.
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