Eimeria

Symptoms

Disproportionate head
Head has grown much larger in proportion to body than normal.
Muscular atrophy
Muscles of fish show evident wasting away.
Abdomen sunken
The lower part of the fish's body is hollow and wasted.
Dark pigment on head
The head of the fish is abnormally dark in colour.
Growth poor
Parasite infested fish show very slow or no growth, as parasite is taking the food.
Reluctant to feed
Fish comes to eat but with evident lack of appetite.
Dark body colouration
The colours of the fish are darkened beyond their normal shade.
Listless and lethargic
Fish moves very lazily in water, much less than normal, lacks interest.

Causes

Several different Sporozoans of the phylum Apicomplexa. Each spore contains 4 sporocysts. Usually infects the intestines and liver.

Prognosis

Generally, outlook is not good. Tests with different substances have given inconclusive results, so success is far from certain.

Treatment

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Prevention


DNA and RNA diagnostic references 

DNA barcoding identifies Eimeria species and
contributes to the phylogenetics of coccidian parasites ( Emeriorina,
Apicomplexa, Alveolata). 
 

From Int. J. Parasitol 2011 July  Ogedengbe J.D. et al. 

Pictures

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Videos

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