Shrimp diseases diagnosis - Microscopic
INTESTINE
Gut (intestine) fullness color are often used
as gross indicators of shrimp health status. Since the abdominal muscle of
shrimp is translucent, the mid gut can be seen running along the top of the
abdominal segments, by holding a pond reared shrimp specimen up to the light.
This process reveals whether the gut it empty or full and done shortly after
feeding, it can reveal whether the shrimp are eating or not. An empty mid gut
indicates that the shrimp are not eating and this, in turn, requires some
investigation to determine the cause, In addition to emptiness and fullness,
abnormal color of the gut may also indicate that tests are needed to determine
the cause. White larval gut has been described related to Baculovirus Midgut Necrosis
Virus (BMNV) infections. Yellowish gut has been described related to
gregarine infection, malaise posterior midgut
cecum and hemolytic enteritis.

Shrimp intestine

Take out intestine for checking

Intestine checking

Medium magnification of a
Gregarine in squash mount of mid-gut contents
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