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Home / Equine Research Bank / Can Vet J / Does examination of fecal samples 24 hours after cestocide t...
The Canadian veterinary journal = La revue veterinaire canadienne2011; 52(2); 158-161;

Does examination of fecal samples 24 hours after cestocide treatment increase the sensitivity of Anoplocephala spp. detection in naturally infected horses?

Abstract: Fecal samples were examined immediately before and 24 to 48 h after cestocide treatment for a comparative detection of tapeworm-positive horses. In early winter, 17 weanlings, 20 yearlings, 15 2-year-old horses, 24 breeding mares, and 2 stallions were treated with praziquantel in combination with a macrocyclic lactone. The horses were presumed to be naturally infected with tapeworms after pasture grazing. Fecal samples were collected before treatment (Day 0), at 24 or 48 h after treatment (Day 1-2), and 16 to 21 d after treatment (Day 16-21). A Wisconsin test was done on all fecal samples. Odds of detection of infection for all age groups increased by a factor of 2.04 [95% confidence interval (CI): 1.30 to 3.20] from Day 0 to Day 1-2 (P = 0.002). L’examen des fèces 24–48 heures après le traitement avec un cestocide fut comparé à l’examen des fèces juste avant le traitement dans leur capacité à détecter la présence de vers plats chez des chevaux canadiens exposés de façon naturelle. Deux protocoles furent comparés pour leur efficacité à identifier les chevaux infestés par des vers plats. En début d’hiver, 17 poulains sevrés, 20 poulains d’un an, 15 poulains de 2 ans, 24 juments poulinières et 2 étalons présumés être infectés naturellement par des vers plats après une saison au pâturage furent traités avec du praziquantel combiné avec un lactone macrocyclique. Des échantillons fécaux furent aussi prélevés avant le traitement (Jour 0), à 24 ou 48 heures (Jour 1–2) et à 16–21 jours (Jour 16–21) après le traitement. Un test Wisconsin fut fait sur tous les échantillons fécaux. Le risque d’infection pour l’ensemble des chevaux augmenta d’un facteur de 2.04 (95% IC: 1.30–3.20) du Jour 0 au Jour 1–2 ( = 0,002). (Traduit par les auteurs)
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Publication Date: 2011-05-03 PubMed ID: 21532821PubMed Central: PMC3022452
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  • Comparative Study
  • Journal Article
  • Research Support
  • Non-U.S. Gov't

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.

The research investigates whether examining fecal samples 24 hours after administering a tapeworm treatment increases the chances of detecting Anoplocephala spp. infection in horses. The study finds a significant increase in detection rates of infection post-treatment.

Study Design and Population

  • The study sample comprised 17 weanlings, 20 yearlings, 15 2-year-old horses, 24 breeding mares, and 2 stallions. These horses were presumed to be naturally infected by tapeworms after spending a season grazing in a pasture.
  • The horses were treated with praziquantel (a medication used to fight parasitic worm infections) combined with a macrocyclic lactone in the early winter.

Sampling and Testing Protocol

  • Fecal samples were collected from the horses immediately before they were treated (Day 0), at 24 or 48 hours after treatment (Day 1-2), and 16 to 21 days after treatment (Day 16-21).
  • All the collected fecal samples were examined by using a Wisconsin test.

Findings

  • The likelihood of detecting Anoplocephala spp. infection increased by a factor of 2.04 (with a 95% confidence interval of 1.30 to 3.20) from Day 0 (before treatment) to Day 1-2 (24 or 48 hours after treatment).
  • This increase in likelihood of detection was statistically significant (P = 0.002), suggesting that the probability of detecting tapeworm infection was greater when the fecal samples were examined 24 to 48 hours after tapeworm treatment as compared to before treatment.

Cite This Article

APA
Elsener J, Villeneuve A. (2011). Does examination of fecal samples 24 hours after cestocide treatment increase the sensitivity of Anoplocephala spp. detection in naturally infected horses? Can Vet J, 52(2), 158-161.

Publication

The Canadian veterinary journal = La revue veterinaire canadienne
ISSN: 0008-5286
NlmUniqueID: 0004653
Country: Canada
Language: English
Volume: 52
Issue: 2
Pages: 158-161

Researcher Affiliations

Elsener, Johanne
  • Wyeth Animal Health, Ontario, Canada. jelsener@live.ca
Villeneuve, Alain

    MeSH Terms

    • Animals
    • Anticestodal Agents / therapeutic use
    • Cestoda / drug effects
    • Cestoda / isolation & purification
    • Cestode Infections / drug therapy
    • Cestode Infections / parasitology
    • Cestode Infections / veterinary
    • Feces / parasitology
    • Female
    • Horse Diseases / drug therapy
    • Horse Diseases / parasitology
    • Horses
    • Lactones / therapeutic use
    • Male
    • Parasite Egg Count / veterinary
    • Praziquantel / therapeutic use
    • Prevalence
    • Species Specificity
    • Time Factors
    • Treatment Outcome

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    Citations

    This article has been cited 2 times.
    1. Nielsen MK. Apparent treatment failure of praziquantel and pyrantel pamoate against anoplocephalid tapeworms.. Int J Parasitol Drugs Drug Resist 2023 Aug;22:96-101.
      doi: 10.1016/j.ijpddr.2023.06.002pubmed: 37354849google scholar: lookup
    2. Misuno E, Clark CR, Anderson SL, Jenkins E, Wagner B, Dembek K, Petrie L. Characteristics of parasitic egg shedding over a 1-year period in foals and their dams in 2 farms in central Saskatchewan.. Can Vet J 2018 Mar;59(3):284-292.
      pubmed: 29599559
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