Evidence map›Paper›PMID 34468310›Full record

ArticleParasite (Paris, France)2021

Treatment against helminths in Norwegian sheep: a questionnaire-based survey.

Maiken Gravdal, Lucy J Robertson, Kristoffer R Tysnes, Johan Höglund, Christophe Chartier, Snorre Stuen

Open access · goldAbstract read
In one paragraph

Article in Parasite (Paris, France), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.3field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 20 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 3 countries.

Maiken GravdalInstitute for Production Animal Clinical Science, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Sandnes 4325, Norway.
Lucy J RobertsonInstitute for Production Animal Clinical Science, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Sandnes 4325, Norway.ORCID 0000-0001-5186-4421
Kristoffer R TysnesInstitute for Production Animal Clinical Science, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Sandnes 4325, Norway.
Johan HöglundSwedish University of Agricultural Sciences, Department of Veterinary Public Health, Section for Parasitology, P.O. Box 7036, Uppsala, Sweden.ORCID 0000-0002-1129-6615
Christophe ChartierBIOEPAR, INRAE, Oniris, 44307 Nantes, France.
Snorre StuenInstitute for Production Animal Clinical Science, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, Sandnes 4325, Norway.
Norwegian University of Life Sciences · NOInstitut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement · FRSwedish University of Agricultural Sciences · SE

Funding

animalianmbu
6 · The paper itself

Abstract

A questionnaire was distributed to 5487 farmers throughout Norway in order to obtain information about management practices regarding helminth infections in sheep. In addition, the farmers' perceptions of helminths and anthelmintic efficacy were investigated. Most farmers (80%) treated prophylactically against nematodes, and 24% also used prophylactic treatment against Fasciola hepatica. Overall, few farmers (11%) used parasitological analysis as a tool to assess the timing of treatment, but rather based it on other factors such as previous experience (70%). In the surveyed sheep flocks, the use of benzimidazoles was reduced from 2018 (52%) to 2019 (47%) (p < 0.01), whereas the use of macrocyclic lactones increased from 2017 (23%) to 2019 (36%) (p < 0.001). Poor anthelmintic efficacy was suspected by 10% of the farmers, and 11% reported that helminths were an increasing problem in their flocks. The majority of farmers (72%) considered their veterinarian as the most important advisor for treatment of parasites, but reported a high level of uncertainty regarding which parasites were present in their flocks, with unknown status most frequently reported for Haemonchus contortus (71.5%). This is probably related to the fact that very few farmers (15%) regularly test their animals for parasites. The present study provides up-to-date information on treatment practices for helminths in Norwegian sheep flocks.

Indexed as

AnthelminticsHelminthsSheep DiseasesAnimalsDrug ResistanceFecesSheepSurveys and QuestionnairesAnthelminticsAnthelmintic resistanceGastrointestinal nematodesLiver flukeParasite controlQuestionnaire surveySheep

Identifiers

PMID34468310
PMCPMC10649840
OpenAlexW3198010539

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.