Studying of disinvasion action of the disinfectant Virosan for eggs Nematodes genus Trichuris parasitizing in sheep

Today sheep breeding in the world is gaining important socio-economic significance. In the conditions of the Ukrainian market, the sector provides the population with food products, industry – raw materials for production. One of the criteria for the efficiency of the industry is the epizootic well-being of farms in relation to invasive diseases, especially the most common ones – nematodoses of the gastrointestinal tract of sheep, which cause areas of significant economic losses. One of the factors of transmission of invasive diseases are objects of the environment, contaminated with eggs and larvae of pathogens of parasitic diseases. Therefore, the disinvasion of these sites is considered one of the decisive measures in the fight against parasites, since the destruction of the invasive elements in the external environment leads to a break in the epizootic chain of parasitic diseases of sheep, including trichurosis. Due to the presence of species diversity of nematodes of the genus Trichuris, parasitizing in sheep, high resistance of their exogenous stages of development to the action of environmental factors and chemicals, it is important to study the disinvasive effect of modern chemical agents on eggs of trichurosis pathogens. The purpose of the work was to study in a laboratory the disinvasive properties of the means of domestic production “Virosan” in the case of eggs of nematodes of the genus Trichuris parasitizing in sheep. The results of the research revealed that Virosan (LTD “BioTestLab”, Ukraine), using its solutions in 0.5% and 1% concentrations for exposures of 10–60 minutes, exhibited pronounced disinvasive properties (DE – 91.80–100% respectively) in relation to the test culture of eggs nematodes of the genus Trichuris, isolated from sheep. The investigated drug causes destructive changes in the form of destruction of the egg shell on one side of the poles and the termination of the development of the embryo at various stages. It has been experimentally established that the use of the means for the test culture of eggs of trichuryses of sheep of different species has its own differences. High level of disinfestation efficiency is registered for the following modes of application of the product: for the species Trichuris globulosa – a solution of 0.25% concentration (exposure of 60 minutes), as well as 0.5% and 1.0% concentration (exposures 10, 30 and 60 minutes), DE is 93.48–100.00%; for the species T. skrjabini – a solution of 0.5% and 1.0% concentration for all proposed exposures DE is 92.31–100.00%; For the species T. ovis – for use of 0.5% and 1.0% of working solutions (exposure 30, 60 and 10–60 minutes) DE is 90.59–100.00%.