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Trichodiniasis

 

 

A. Causes: Trichodina spp., Trichodinella spp., And Tripartiella spp.

 

B. Characteristics of pathogens:

- This disease is a protozoan from the ciliate group, round, symmetrical and lives in freshwater, brackish and marine ecosystems.

 

- Trichodina spp. measuring 45-78 μm,

- Trichodinella (24-37μm) and Tripartiella measuring more than 40μm.

- Has a disc denticle ring, this ring functions as a sticking device.

- Parasite hosts are all fish seeds that live in fresh, brackish and sea water.

- Infecting the skin, fins and gills of newly hatched fish until the age of 1 month.

- This group of parasites is generally more commensal than true parasitic, because it only eats dead / destroyed fish skin cells. However, due to the structure of a hard sticking device (chitin), it often results in irritation and injury to the skin of the fish.

- Fish deaths resulting from this disease will reach 50% of the total population, mainly due to secondary infections by bacteria and / or fungi.

 

 

C. Clinical Symptoms:

- The body color of the fish becomes pale, the appetite of the fish decreases, the body becomes thin, restless and the movement of the fish becomes sluggish.

- Fish often rub the body on the surrounding objects (itching).

- Increased breathing frequency and fish often jumping to the surface of the water.

- There is irritation of the skin epithelial cells, excessive mucus production so that it is brownish or bluish.

- There has been damage, tapping or falling out.

 

 

 

D. Diagnosis:

- Visual observation of behavior and clinical symptoms that arise and / or increase the frequency of new water changes.

   - Fish attacked by trichodiniasis with low prevalence and intensity levels,


  

 Fish treatment can be done with several types of disinfectants, including:

 1. Immersion of fish in kitchen salt solution (for freshwater fish) at a concentration of 500-10,000 mg / liter (depending on the type and age of fish) for 24 hours;

    2. Herbal treatment: using Garlic (AlliumsativumL) by: the same as for controlling ichthyophthiriasis