Persistent activity and therapeutic efficacy of Delcid® 7.5 against scab mites (Psoroptes ovis) in sheep
https://doi.org/10.31016/1998-8435-2022-16-4-468-474
Abstract
The purpose of the research is to study persistent activity and therapeutic efficacy of Delcid® 7.5 against scab mites Psoroptes ovis in sheep.
Materials and methods. The studies were performed in the Bukhty peasant farm enterprise in November 2021 on the Kizlyarsky District winter pastures in the Republic of Dagestan. Three groups of sheep were formed, of which two groups (second and third) had a confirmed clinical diagnosis of psoroptic mange (P. ovis) and one group (first) was free from scab mites. Sheep from the first and second groups were treated with Delcid at a dose of 10 ml of the drug per animal. After 10 days, sheep from the second group were treated with the drug repeatedly at the same dose. Sheep from the first and second groups were treated with the drug applied on dry and intact skin of the back along the spine using the drop method. The third control (infected) group of animals was not treated. All experimental groups of sheep were kept in a common flock. The Delcid persistent activity and thera-peutic efficacy were evaluated by clinical examination and microscopy of the skin for P. ovis mites before the experiment started and at 1, 3, 7, 10, 14, 21, 25 and 30 days after treatment in the first group and at 1, 3, 7, 11, 13, 17, 20, 24, 31, 35 and 40 days in the second and third groups of sheep.
Results and discussion. It was found that Delcid 7.5 showed persistent activity in sheep against psoroptic mange pathogens for 21 days after a single treatment at a dose of 10 ml per animal. Delcid acaricidal effect after double treatment against P. ovis was 31 days.
About the Authors
S. V. Engashev
Moscow State Academy of Veterinary Medicine and Biotechnology – MVA named after K. I. Skryabin
Russian Federation
Russian Federation
Engashev Sergey V., academician of the RAS, professor
109472, Moscow, Academician Scriabin Str., 23
E. S. Engasheva
Federal Scientific Centre VIEV
Russian Federation
Russian Federation
Engasheva Ekaterina S., candidate of veterinary science
109428, Moscow, Ryazansky prospect, 24 (1)
V. I. Kolesnikov
North Caucasian Federal Scientific Agrarian Center
Russian Federation
Russian Federation
Kolesnikov Vladimir I., doctor of veterinary science, professor
355017, Stavropol, Zootekhnichesky lane, 15
B. M. Bagamaev
Stavropol State Agrarian University
Russian Federation
Russian Federation
Bagamaev Bagama M., doctor of veterinary science, assistant professor
355017, Stavropol, Zootechnichesky lane
R. J. Ustarov
Federal Agrarian Research Center of the Republic of Dagestan
Russian Federation
Russian Federation
Ustarov Rasul J.
367014, Republic of Dagestan, Makhachkala, Dakhadaeva Str., 28
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Review
For citations:
Engashev S.V., Engasheva E.S., Kolesnikov V.I., Bagamaev B.M., Ustarov R.J. Persistent activity and therapeutic efficacy of Delcid® 7.5 against scab mites (Psoroptes ovis) in sheep. Russian Journal of Parasitology. 2022;16(4):468-474. (In Russ.) https://doi.org/10.31016/1998-8435-2022-16-4-468-474
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