Shrimp diseases diagnosis - Microscopic

GILL

Black gill is a common manifestation of a number of disease syndromes (Vibriosis, fouling organisms, mycosis, mycobacterium infection, ascorbic acid deficiency). In addition to an infectious or nutritional etiology, a number of heavy metals (e.g. cadmium or copper used in shrimp ponds as algaecides) and certain other chemicals (e.g., ammonia, nitrite, chlorine, potassium permanganate) may cause malaise lesions. This etiology must be differentiated from black gills that arise from the accumulation of organic matter, which can easily occur in highly turbid water.

Gill of Shrimp

Cut Shrimp for checking

Filamentous Bacteria in Shrimp Gill

Zoothamnium sp.in Shrimp Gill

Iron (Fe+) stick in shrimp gill (red gill)

Shrimp with dirty gum and rot tail

 

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