Screening the Effectiveness of Insecticides and Repellents against Zoophilic Flies in Cattle

Shamgunov N. Aubakirov M. Aliyeva G. Oshakbayeva N. Raketsky V. Domatsky V. Aubakirov D. Ergazina A.
Nov-Dec 2025 Unique Scientific Publishers

International Journal of Veterinary Science
2025 #14 Issue 6 1196 - 1204 pp.

Flies spread infectious and invasive diseases, disturb farm animals, and reduce their productivity during the summer pasture grazing. The study aims to investigate the species composition and test the effectiveness of insecticides and repellents against zoophilic flies in cattle on livestock farms and pastures in the Kostanay Region, North Kazakhstan. The research subject was Holstein cattle kept in feedlots of two types: open, where animals were kept in open enclosures, and semi-closed, where cattle stayed in enclosures equipped with sheds, in summer camps, or enclosures near cowsheds. The effectiveness of insecticides and a repellent preparation was tested to determine the duration of cattle protection in the Karabalyk, Mendykara and Sarykol Districts of the Kostanay Region of Kazakhstan. Experiments were conducted to determine the comparative effectiveness of insecticides against zoophilic flies in cattle. Delcid® and Cyperil® insecticides were applied in different concentrations to assess their insecticidal effectiveness, along with Oxarep® repellent. The use of synthetic pyrethroid insecticides reduced milk productivity losses caused by zoophilic fly attacks on cows, which had previously reached 13.68%. Spraying the cows with Delcid®, Cyperil®, and Oxarep® during the pasture period to protect against zoophilic flies led to increased milk production in livestock farms in the Kostanay Region. Each cow produced an additional 0.23L (1.45%) of milk, reducing losses from insect attacks by more than half. Among the tested agents, Delcid® demonstrated the highest insecticidal effectiveness, maintaining strong protective action over 72 hours. Cyperil® and the Oxarep® repellent were also effective, though with slightly lower and shorter-lasting activity.

Cattle , Effectiveness , Pest infestation , Productivity , Synthetic pyrethroids , Zoophilic flies

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Department of Veterinary Medicine, Akhmet Baitursynuly Kostanay Regional University, 99/1 bld. 4, Mayakovsky str., Kostanay, 110000, Kazakhstan
Department of Veterinary Sanitation, Akhmet Baitursynuly Kostanay Regional University, 99/1 bld. 4, Mayakovsky str., Kostanay, 110000, Kazakhstan
Kostanay branch of KazNIVI LLP, 94 Dulatov str., Kostanay, 110000, Kazakhstan
Federal State Budgetary Educational Institution of Higher Education Northern Trans-Ural State Agrarian University, ASRIVEA-branch of the Tyumen Scientific Center of the Siberian Branch of the Russian Academy of Sciences, 2 Institutskaya str., Tyumen, 62504, Russian Federation
Information Systems Department, Akhmet Baitursynuly Kostanay Regional University, 28 bld. 3, Abay str., Kostanay, 110000, Kazakhstan

Department of Veterinary Medicine
Department of Veterinary Sanitation
Kostanay branch of KazNIVI LLP
Federal State Budgetary Educational Institution of Higher Education Northern Trans-Ural State Agrarian University
Information Systems Department

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