Video: Papillomatosis Of Fish
Papillomatosis is a viral disease of predominantly labyrinth fish (dwarf gourami, lalius, lyabiosis, striped coliseus). The disease is characterized by the formation of tumors in various parts of the body. Disease is rare in aquariums.
Etiology. The causative agents of the disease are papillomaviruses, the way of life of which has been little studied. Papillomatosis is a benign tumor consisting of connective tissue, which is covered on top with keratinized skin.
Epizootological data. Papillomas (warts) in aquarium fish appear more or less simultaneously and sequentially over a certain period of time (in different species), while in a pond the disease usually occurs only in one species of fish living with other species in the same pond and in those the same weather conditions. Tumor growths appear simultaneously or one after another. But still, aquarium fish suffer from this disease a little less often than pond fish. The disease is not fatal, but contagious. The source of infection is infected fish kept in the general aquarium. The incubation period of the disease is 2-3 weeks.
Fish with papillomatosis
Symptoms The disease is expressed in the formation of a tumor growth of a gray-white color ranging from millet to lentil grain on the fins, in the region of the gill covers, along the edges of the mouth opening, on the fins. The number, size and appearance of tumors vary considerably.
In carp fish (koi), papillomas are outwardly similar to carp smallpox - they appear in large numbers on the ribs, especially around the anterior hard rays. The average size of papillomas can reach 5 mm.
Diagnosis. Placed after histological examinations.
Treatment. Treatment methods have not been developed. Some aquarists resort to surgery or gently cauterize papillomas.
Prevention. Fish do not die. However, individuals with tumor growths should be removed from the aquarium in order to prevent the spread of the disease among its other inhabitants. The aquarium must be disinfected.