Food value and basic parasitosis of fish used in food by indigenous populations of Yakutia

Abstract

The article presents the results of studies of nutritional value and the degree of infection with parasitoses of Siberian vendace (Coregonus sardinella Vallenciennes, 1848) and Yakut crucian carp (Carassius carassius jacuticus Kirillov, 1972). By the amount of protein, the Siberian vendace is classified as medium-protein, in terms of fat content, it is especially fatty fish and of high calories. It has been established that a distinctive feature of the Yakut crucian carps compared to European ones is high fat content (up to 10 % versus 2.5 %), high content of polyunsaturated fatty acids, macro- and microelements, vitamins, and have high energy value. The most common parasitic diseases of the crucian carp and vendace, affecting the quality and appearance of the fish, are myxosporidioses caused by Myxobolus, digramosis and phylometroidosis, the negative impact on the quality of which depends on the parasite infection intensity.