Эпизоотический мониторинг зараженности товарной рыбы гельминтозоонозами в Алтайском крае

Abstract

Fish is a valuable food product, but for all its usefulness it may become a source of poisoning and infection for hu-mans. On the territory of the Russian Federation, a number of parasitic diseases are registered; their causative agents are transmitted to humans through fish and its processed products. The research goal is the epizootic monitoring of marketable fish infection with helminthozoonosis in the Altai Region to evaluate the risk of infection in humans and ani-mals. The research targets are different species of fresh-water and marine fish. The research subject was the epizoot-ic situation regarding helminthozoonosis in commercial fish in the Altai Region. To detect the helminthic fauna in market-able fish and study the infestation dynamics, we conducted our own research and used the data from state reporting on veterinary and sanitary examination of slaughter products on farms, at slaughterhouses and meat processing plants, at cold storage plants and markets in the Altai Region. The studies were carried out according to common research methods. The epizootic monitoring has found that two out of nine parasites registered in marketable fish are dangerous to humans. They are the causative agents of opisthorchiasis and anisacidosis. Analysis of long-term dynamics of market-able fish infestation revealed that the frequency of anisaci-dosisregistration in fish decreased in recent years, and opis-thorchiasiswas not recorded at all in the Region over the past six years. Despite the steady tendency of reducedinfes-tation of marketable fish, veterinary control should not be weakened. The factors accompanying the spread of the invasion are still present in the Region. To evaluate the epi-zootic situation in the Region and the effectiveness of pre-ventive measures to improve the health of the population regarding helminthic helminthozoonosis, it is necessary to further monitor the dynamics of fish infection by means of veterinary and sanitary examination of fish as a possible source of human infection.