ICHTHYOBODO NECATOR PDF

PDF | Ichthyobodo necator is a parasitic flagellate that attacks fishes, causing disease problems in freshwater worldwide. Findings of similar. Ichthyobodo necator or Costia necatrix as it is more commonly known is a very important protozoan parasite of cultured fish throughout the world. Its importance . Ichthyobodo necator or Costia necatrixas it is more commonly known is a very important protozoan parasite of cultured fish throughout the world. Its importance .

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Search form Search this site. Infectious and parasitic diseases of fish and shellfish.

This fish pathogen is a um flagellated protozoan parasite and is called both Ichthyobodo necator and Ichthyobodo pyriformis in scientific literature. Efficacy of green tea extract on removal of the ectoparasitic flagellate Ichthyobodo necator from chum salmon, Oncorhynchus ketaand masu salmon, O. The free, non-feeding form has an oval body and swims by 2 rarely 4 unequal flagella.

The ectoparasite is observed by light microscopy Fig. Since this parasite is not infectious to human, it is harmless in food hygiene. Ichthyobodo also known as: Aquaculture, Common disease signs include listlessness, anorexia and flashing behavior, and in more advanced cases a blue-gray film will appear on the surface of ichthyobdo fish.

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Ichthyobodo necator

Heavily infested fish exhibits anorexia and petechial haemorrhagic lesions in the skin Fig. Gill filaments are fused. Haemorrhagic lesions caused by I. Parasite Ichthyobodo necator Taxonomy Sarcomastigophora, Ichthyobodonidae Host Salmonid fishes Infection site Skin, fin, gill Clinical signs Heavily infested fish exhibits anorexia and petechial haemorrhagic lesions in the skin Fig.

Ichthyobodo infection does not pose any human health concerns. Widespread – especially in fish in poor quality water.

Other information A new control method using green tea extract and its active ingredient a kind of catechin is investigated because the pharmaceutical law in Japan prohibited the therapeutic use of formalin for food fish Suzuki et al.

Juvenile fish are the most susceptible to the parasite.

A new control method using green tea extract and its active ingredient a kind of catechin is investigated because the pharmaceutical law in Japan prohibited the therapeutic use of formalin for food fish Suzuki et al. Lom, J and I. Widespread – especially in fish in poor quality water Hosts: Ichthyobodo necator Kinetoplastida — a complex of sibling species. A review of Ichthyobodo infection in marine fishes.

Skip to main content. The pathogen is spread from one fish to another, making it a significant disease in fish aquaculture. Diagnosis Check the flagella in a wet-mount preparation.

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Click image to view at maximum resolution. The parasite body is pyriform and m m in size Fig. Though many Ichthyobodo which infect freshwater or marine fishes were described as Ichthyobodo necatorit was indicated by transmission experiments and gene analyses that most of them are different species from I.

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Epithelial or epidermal cells become necrotic followed by sloughing of them and haemorrhages. Wet mount of I. Health hazard Since this parasite is not infectious to human, it is harmless in food hygiene. Gills and body surfaces. Disease caused by an organism in the genus Ichthyobodo also known formally as Costia is commonly referred to as Ichthyobodiasis or Costiasis.

If the gills are infested, gill hyperplasia and lamellar fusion can be seen, as well as secondary fungal infections. Gills and body surfaces References: Pathology Epithelial or epidermal cells become necrotic followed by sloughing of them and haemorrhages.

Check the flagella in a wet-mount preparation. Parasitology The parasite body is pyriform and m m in size Fig.