Disinvasive activity of modern disinfectants against Ascaridia galli nematode eggs

Abstract

Maintaining the well-being of poultry farms, increasing the number of birds, as well as enhancing their productivity depends on the implementation of therapeutic and preventive measures. Compliance with zoohygienic requirements and veterinary and sanitary rules for keeping chickens ensures veterinary well-being of farms, including with regard to nematodoses of the digestive tract. The aim of the research was to determine the disinvasive activity of modern disinfectants against eggs of the nematode Ascaridia galli, which parasitizes chickens. Under laboratory conditions, the destructive effect of domestically produced disinfectants was determined, including "Kristal-900" (active ingredients: glutaraldehyde, glyoxalaldehyde, benzalkonium chloride), "Creolin" (cresols, naphthalene, resin acids, pyridine bases and emulsifiers) and "Desirex Forte ParvoStop" (quaternary ammonium compounds, glutaraldehyde, non-inogenic surfactants) on a test culture of ascarid eggs isolated from the gonads of female nematodes. The conducted studies have established a high level of disinvasive effectiveness against A. galli nematode eggs of the following agents: "Krystal-900" – at 1.5 % concentration with exposure times of 1 h, 2 h and 3 h (90.3 %, 94.0 % and 100.0 % respectively); "Creolin" – at 4.0 % concentration for exposures of 2 and 3 h (92.9 and 100.0 % respectively) and at 5.0 % concentration for all exposure periods (100.0 %); "Desirex Forte ParvoStop" – at 0.5 % concentration with exposure times of 2 and 3 h (93.7 and 100.0 % respectively). Lower concentrations of the tested disinfectants, depending on the exposure duration, had either satisfactory or unsatisfactory levels of disinvasion efficiency against the eggs of the nematode A. galli. The destructive effect of disinfectants was accompanied by changes in the morphological structure of the eggs, which were characterized by the arrest of their development and loosening of the embryo; destruction and loosening of the eggshell, disintegration of both the embryo and shell, and larval death. The obtained research results allow us to recommend the disinfectants "Krystal-900", "Creolin" and "Desirex Forte ParvoStop" in specific application regimens for the effective control and prevention of ascaridiosis in chickens.