Application of nanosilver based preparation in ammonia reduction in broiler house

Abstract. The aim of the study was to determine the dose of a nanotechnological-mineral preparation based on nanosilver and vermiculite for an effective ammonia reduction, and the influence of the preparation on physical properties of litter and air. The preparation used was obtained by spreading water nanosilver suspension on vermiculite with an addition of 5 % of humodetrynite. Research animals were broiler chickens divided into three groups. The particular groups were differentiated regarding the prepared application. The measurements of ammonia concentrations were conducted in upper litter layer and about 30 cm above the litter. Litter temperature, humidity and pH, and air humidity and temperature were monitored. The measurements were conducted at day 5, 10, 15, 20 and 25 of the experiment. Ammonia content above the litter was reduced in group I and II. The highest ammonia concentration was observed in the control group at sampling four while the lowest one was noted in group II at sampling two. In all groups an influence of the preparation on ammonia content above the litter was visible. Decrease in ammonia concentration in experimental groups compared to the control group was more distinct than in the case of ammonia concentration above the litter. Based on the results it is difficult to determine unequivocally an influence of the preparation on litter temperature, pH and humidity, and also on air temperature and humidity. Taking into account the level of ammonia reduction, the results may be a premise for further studies in the range of nanosilver application for the sanitization of animal buildings.