Evidence map›Paper›PMID 36066737›Full record

ArticleVeterinary research communications2022

Causes of abortion in Iranian sheep flocks and associated risk factors.

Hossein Esmaeili, Amir Pasha Shakeri, Zia Nosrati Rad, Ehsan Baghal Arani, Sergio Villanueva-Saz, Héctor Ruiz, Delia Lacasta

Open access · hybridAbstract read
In one paragraph

Article in Veterinary research communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 15 citations in OpenAlex.

  1. Molecular detection ofVeterinary and animal science · 2026
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  3. Investigation ofArchives of Razi Institute · 2025
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  6. Review
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  14. Molecular detection of bacterial zoonotic abortive agents from ruminants in Turkey.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024
    Article
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

7 authors at 3 institutions in 2 countries.

Hossein EsmaeiliDepartment of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran. hesmaeli@ut.ac.ir.
Amir Pasha ShakeriDepartment of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
Zia Nosrati RadDepartment of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
Ehsan Baghal AraniDepartment of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
Sergio Villanueva-SazDepartment of Animal Pathology, Veterinary Faculty, University of Zaragoza, 50013, Zaragossa, Spain. svs@unizar.es.
Héctor RuizDepartment of Animal Pathology, Veterinary Faculty, University of Zaragoza, 50013, Zaragossa, Spain.
Delia LacastaDepartment of Animal Pathology, Veterinary Faculty, University of Zaragoza, 50013, Zaragossa, Spain.
University of Tehran · IRUniversidad de Zaragoza · ESCentro de Investigación y Tecnología Agroalimentaria de Aragón · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Abortion is a major issue in sheep husbandry. It can result in significant economic losses and a severe public health risk. This survey assessed the infectious and non-infectious causes of abortion in Iranian sheep flocks and determined the main risk factors. In this cross-sectional survey, causes of abortion were evaluated in 757 sheep flocks, and risk factors were analysed. A checklist containing general animal information for each abortion outbreak evaluated was filled in. Data were analysed using univariate tests and multivariable binary logistic regression analysis. In this sense, parity, gestational age of the aborted fetus, vaccination protocol, mineral supplementation and history of stillbirth showed significant associations with abortion. Infectious agents such as Coxiella burnetti (22.7%), Chlamydia abortus (12.3%) and Brucella melitensis (10.4%) were the most frequently isolated in the investigated flocks, with more than 2% of abortion rates. On the other hand, non-infectious agents such as trauma, pregnancy toxaemia and vitamin E/Se deficiency were involved in those flocks with low abortion rates (less than 10%). Results revealed multiple causes of abortion outbreaks among Iranian sheep flocks, which need careful investigation to identify possible aetiology and risk factors. Further studies are necessary to evaluate if these factors are similar to other countries in the same region.

Indexed as

Pre-EclampsiaSheep DiseasesAbortion, VeterinaryAnimalsCross-Sectional StudiesFemaleIranPregnancyRisk FactorsSheepAbortionIranRisk factorsSheepSmall ruminants

Identifiers

PMID36066737
PMCPMC9684225
OpenAlexW4294724194

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.