Analyze Diet
Journal of veterinary pharmacology and therapeutics2022; 45(5); 473-480; doi: 10.1111/jvp.13084

Control of ticks on horses using abamectin-impregnated ear tags. A pharmacokinetic and pharmacodynamic study.

Abstract: Several different tick species are known to infest horses. Aside from causing serious health and welfare issues, including anaemia, ill thrift, and immunosuppression, ticks can transmit a variety of important, sometimes zoonotic, pathogens. The successful prevention and treatment of tick infestations have been described, but the information is scarce and, in many instances, anecdotal. Here we describe a practical and affordable prevention of tick infestation by using abamectin-impregnated cattle ear tags affixed to a safety collar. We have assessed the radial distribution of abamectin by analyzing hair samples, as well as its efficacy against tick infestations. The study results show that abamectin distributes across horse skin from the site of application and its associated effectiveness in reducing the tick burden.
Publication Date: 2022-06-28 PubMed ID: 35762629DOI: 10.1111/jvp.13084Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
  • Journal Article

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This study investigates the use of abamectin-impregnated ear tags, originally designed for cattle, as a potential solution for controlling tick infestations in horses. Involving the pharmacokinetics and pharmacodynamics of abamectin, the research shows that this technique can be both practical and affordable, and provides evidence of successful reduction in tick burden on horses.

Research Focus and Methodology

  • The objective of this study was to explore a potential technique for preventing tick infestations in horses. For this purpose, researchers employed the use of ear tags impregnated with abamectin, a drug customarily used in cattle, fixed to a safety collar for horses.
  • The research process involved scrutiny of both the pharmacokinetics and pharmacodynamics of abamectin. Pharmacokinetics refers to the movement of drugs within the body, whereas pharmacodynamics involves the study of the biochemical and physiological effects of drugs and their mechanism of action.
  • Part of the methodology featured analyzing hair samples from horses, which helped the scientists assess the radial distribution of abamectin across the skin of the horses from the point of application.

Key Findings of the Study

  • The results from the study suggest that abamectin was effectively distributed from the site of application across the skin of the horses. This led to a successful prevention of tick infestations and demonstrates a promising potential for the use of abamectin-impregnated ear tags as a practical and cost-effective solution against ticks in horses.
  • The findings of this study also provide valuable data and insights to supplement the arguably scarce existing literature on the successful prevention and treatment of tick infestations. Given the significant health problems that ticks can cause in horses, including anaemia, ill thrift, and immunosuppression, as well as transmission of pathogens, this research offers an accessible preventive strategy.

Implications of the Study

  • The implications of this research extend beyond just horses. If proven effective and safe, the methodology tested in this study could be applied to other animals afflicted by tick infestations.
  • Due to its practical nature, this preventive strategy could be rolled out on a large scale and used by animal healthcare providers and owners alike. Its affordability ensures it is accessible for wealthier and poorer regions alike.
  • The study could stimulate related research into improving the delivery technology of anti-tick treatments, which could lead to even better protection mechanisms against tick-borne diseases.

Cite This Article

APA
Werners A, Karasek I, Butler C, Yeatts J, Enomoto H, Baynes R. (2022). Control of ticks on horses using abamectin-impregnated ear tags. A pharmacokinetic and pharmacodynamic study. J Vet Pharmacol Ther, 45(5), 473-480. https://doi.org/10.1111/jvp.13084

Publication

ISSN: 1365-2885
NlmUniqueID: 7910920
Country: England
Language: English
Volume: 45
Issue: 5
Pages: 473-480

Researcher Affiliations

Werners, Arno
  • Department of Anatomy, Physiology and Pharmacology, School of Veterinary Medicine, St. George's University, St. George's, Grenada.
Karasek, Inga
  • Large Animal Medicine and Surgery Department, School of Veterinary Medicine, St. George's University, St. George's, Grenada.
Butler, Catherine
  • Large Animal Medicine and Surgery Department, School of Veterinary Medicine, St. George's University, St. George's, Grenada.
Yeatts, James
  • Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA.
Enomoto, Hiroko
  • Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA.
Baynes, Ronald
  • Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA.

MeSH Terms

  • Animals
  • Cattle
  • Cattle Diseases
  • Ear, External
  • Horse Diseases / drug therapy
  • Horse Diseases / prevention & control
  • Horses
  • Ivermectin / analogs & derivatives
  • Tick Infestations / drug therapy
  • Tick Infestations / prevention & control
  • Tick Infestations / veterinary
  • Ticks

Grant Funding

  • St. George's University Small Research Grant Initiative

References

This article includes 30 references
  1. Baynes RE. In vitro dermal disposition of abamectin (avermectin B1) in livestock. Research in Veterinary Science 76(3), 235-242.
  2. Berger J, Valdez S, Puschner B, Leutenegger CM, Gardner IA, Madigan JE. Effects of oral tetrachlorvinphos fly control (Equitrol) administration in horses: Physiological and behavioural findings. Veterinary Research Communications 32(1), 75-92.
    doi: 10.1007/s11259-007-9004-zgoogle scholar: lookup
  3. Borges LMF, Oliveira PR, Ribeiro MFB. Seasonal dynamics of the free-living phase of Anocentor nitens at Pedro Leopoldo, Minas Gerais, Brazil. Veterinary Parasitology 87(1), 73-81.
  4. Bradley AE, Shoenfelt JL, Durda JL. Carcinogenicity and mode of action evaluation for alpha-hexachlorocyclohexane: Implications for human health risk assessment. Regulatory Toxicology and Pharmacology 76, 152-173.
  5. Bretveld RW, Thomas CM, Scheepers PT, Zielhuis GA, Roeleveld N. Pesticide exposure: The hormonal function of the female reproductive system disrupted?. Reproductive Biology and Endocrinology 4(1), 30.
    doi: 10.1186/1477-7827-4-30google scholar: lookup
  6. Davey RB, Pound JM, Lohmeyer KH. Suppression of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) on pastured cattle using an abamectin-lmpregnated cattle ear tag. Journal of Entomological Science 48(2), 99-113.
  7. Drummond R, Graham O. Insecticide tests against the tropical horse tick, Dermacentor nitens, on horses. Journal of Economic Entomology 57(4), 549-553.
    doi: 10.1093/jee/57.4.549google scholar: lookup
  8. Drummond R, Ossorio J. Additional tests with insecticides for the control of the tropical horse tick on horses in Florida. Journal of Economic Entomology 59(1), 107-110.
    doi: 10.1093/jee/59.1.107google scholar: lookup
  9. Estrada-Peña A, Ayllón N, de la Fuente J. Impact of climate trends on tick-borne pathogen transmission. Frontiers in Physiology 3, 64.
    doi: 10.3389/fphys.2012.00064google scholar: lookup
  10. French D, Craig T, Hogsette J, Pelzel-McCluskey A, Mittel L, Morgan K, Pugh D, Vaala W. External parasite and vector control guidelines. American Association of Equine Practitioners .
  11. Gall VLL, Klafke GM, Torres TT. Detoxification mechanisms involved in ivermectin resistance in the cattle tick, Rhipicephalus (Boophilus) microplus. Scientific Reports 8(1), 12401.
  12. Gokbulut C, Cirak V, Senlik B, Aksit D, Durmaz M, McKellar Q. Comparative plasma disposition, bioavailability and efficacy of ivermectin following oral and pour-on administrations in horses. Veterinary Parasitology 170(1-2), 120-126.
  13. Gokbulut C, Loria A, Gunay N, Masucci R, Veneziano V. Plasma disposition, concentration in the hair, and anthelmintic efficacy of eprinomectin after topical administration in donkeys. American Journal of Veterinary Research 72(12), 1639-1645.
    doi: 10.2460/ajvr.72.12.1639google scholar: lookup
  14. Gokbulut C, Ozuicli M, Aksit D, Aksoz E, Korkut O, Yalcinkaya M, Cirak VY. Comparative plasma and milk dispositions, faecal excretion and efficacy of per os ivermectin and pour-on eprinomectin in horses. Journal of Veterinary Pharmacology and Therapeutics 39(6), 584-591.
    doi: 10.1111/jvp.12308google scholar: lookup
  15. Grimalt S, Pozo ÓJ, Marín JM, Sancho JV, Hernández F. Evaluation of different quantitative approaches for the determination of noneasily ionizable molecules by different atmospheric pressure interfaces used in liquid chromatography tandem mass spectrometry: Abamectin as case of study. Journal of the American Society for Mass Spectrometry 16(10), 1619-1630.
  16. Hansford KM, Gillingham EL, Cull B, McGinley L, Medlock JM, Phipps LP, Peaty M. Disease and ticks on horses. Veterinary Record 184(19), 592.
    doi: 10.1136/vr.l2056google scholar: lookup
  17. Jongejan F, Uilenberg G. The global importance of ticks. Parasitology 129(S1), S3-S14.
    doi: 10.1017/s0031182004005967google scholar: lookup
  18. Kamran K, Ali A, Villagra C, Siddiqui S, Alouffi AS, Iqbal A. A cross-sectional study of hard ticks (Acari: Ixodidae) on horse farms to assess the risk factors associated with tick-borne diseases. Zoonoses and Public Health 68(3), 247-262.
    doi: 10.1111/zph.12809google scholar: lookup
  19. Little S, Braff J, Place J, Buch J, Dewage BG, Knupp A, Beall M. Canine infection with Dirofilaria immitis, Borrelia burgdorferi, Anaplasma spp., and Ehrlichia spp. in the United States, 2013-2019. Parasites & Vectors 14(1), 10.
  20. Magnusson BM, Walters KA, Roberts MS. Veterinary drug delivery: Potential for skin penetration enhancement. Advanced Drug Delivery Reviews 50(3), 205-227.
  21. Mills PC. Vehicle effects on the in vitro penetration of testosterone through equine skin. Veterinary Research Communications 31(2), 227-233.
    doi: 10.1007/s11259-006-3446-6google scholar: lookup
  22. Mills PC, Cross SE. Regional differences in the in vitro penetration of hydrocortisone through equine skin. Journal of Veterinary Pharmacology and Therapeutics 29(1), 25-30.
  23. Mills PC, Cross SE. The effects of equine skin preparation on transdermal drug penetration in vitro. Canadian Journal of Veterinary Research 70(4), 317-320.
  24. Mills PC, Cross SE. Regional differences in transdermal penetration of fentanyl through equine skin. Research in Veterinary Science 82(2), 252-256.
  25. Pfister K, Armstrong R. Systemically and cutaneously distributed ectoparasiticides: A review of the efficacy against ticks and fleas on dogs. Parasites & Vectors 9(1), 436.
    doi: 10.1186/s13071-016-1719-7google scholar: lookup
  26. Schuntner CA, Roulston WJ, Wharton RH. Toxicity of piperonyl butoxide to Boophilus microplus. Nature 249(5455), 386.
    doi: 10.1038/249386a0google scholar: lookup
  27. Schwint ON, Knowles DP, Ueti MW, Kappmeyer LS, Scoles GA. Transmission of Babesia caballi by Dermacentor nitens (Acari: Ixodidae) is restricted to one generation in the absence of alimentary reinfection on a susceptible equine host. Journal of Medical Entomology 45(6), 1152-1155.
  28. Stahl J, Niedorf F, Kietzmann M. Characterisation of epidermal lipid composition and skin morphology of animal skin ex vivo. European Journal of Pharmaceutics and Biopharmaceutics 72(2), 310-316.
  29. Stiller D, Coan ME. Recent developments in elucidating tick vector relationships for anaplasmosis and equine piroplasmosis. Veterinary Parasitology 57(1-3), 97-108.
  30. Wise LN, Butler CM, Karasek IE, Gemmell G, Werners AH, Kappmeyer LS, Knowles DP. Analysis of Theileria equi and Babesia caballi in equine populations of the West Indies. Journal of Equine Veterinary Science 39, S99-S100.

Citations

This article has been cited 0 times.