ECONOMIC EFFICIENCY OF DISINSECTION MEASURES AGAINST ZOOPHILIC FLIES IN LIVESTOCK FACILITIES IN THE KOSTANAY REGION

Abstract

The article presents the results of the economic effectiveness of disinfestation and larvicidal treatment in young cattle facilities using the Delcid insecticide. To determine the economic impact, data on the productivity of young cattle before and after treatment against zoophilic flies was initially collected. It was established that on the territory and premises of the Abdibekov farm, animals were disturbed by six species of flies: Musca domestica L., Muscina stabulans FII., Fannia canicularis L., Calliphora vicina, Calliphora uralensis, and Sarcophaga carnaria, belonging to five genera from four families. Fly control in the premises, in the absence of animals, was carried out using a Colorado hand-held backpack sprayer with Delcid at concentrations of 0.04% and 0.25%, applied to non-absorbent and absorbent surfaces at a rate of 50 and 100 ml/m² of aqueous emulsion. Interior walls, windows, and entrance gates were treated. Simultaneously, fly breeding sites were treated. Prior to this, the substrate larval count was determined, reaching an average of 197 individuals/kg. Delcid was applied at a concentration of 0.06% (active substance) w.e. to treat the straw bedding and manure accumulation areas in the calf barn at a rate of 2 l/m². The day after treatment, 29 live larvae were detected per kg of substrate, indicating a treatment efficacy of 85.2%. Disinfestation and larvicidal treatment carried out in the experimental calf barns prevented a decline in meat productivity, increasing it by 16.5% compared to calf productivity in the control barn in the Zhdanovka village.