Epidemiological observations on sarcoids in a population of donkeys (Equus asinus).
Abstract: An epidemiological study of equine sarcoid in a population of 4126 donkeys showed that the peak incidence of the disease was 15.2 cases per 100 animal-years and occurred in animals in their fourth year of life. The crude incidence of the disease was 0.6 cases per 100 animal-years. The disease occurred most frequently in younger, male animals during their first five years in the population. The lesions were observed most commonly in the paragenital region. Pre-entry quarantine procedures did not appear to play a significant role in the spread of the disease but there was an indication that close in-contact animals were more likely to have sarcoids than animals in the general population. This suggested that a transmissible agent might have been involved in the aetiopathogenesis or that the animals had encountered some event that had predisposed them to the disease.
Publication Date: 1994-02-26 PubMed ID: 8171807DOI: 10.1136/vr.134.9.207Google Scholar: Lookup
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- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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The research article discusses a study on the occurrence of equine sarcoid, a skin tumour, in a population of over 4000 donkeys. A higher occurrence was found in young, male donkeys, mainly within their first five years, with the most common site being the area around the genitals.
Observation and Participants
- The research focused on studying the occurrence and pattern of equine sarcoid – a type of skin tumour in a population of 4126 donkeys.
Findings
- The results showed a peak incidence of 15.2 cases per 100 animal-years in donkeys during their fourth year of life. This shows that younger donkeys were more prone to developing the disease.
- The general occurrence of the disease was found to be 0.6 cases per 100 animal-years across all the animals studied.
- The high frequency of the disease was noticed in young male donkeys within their first five years in the observed population. An element of the disease’s occurrence was related to the age and gender of the donkeys.
- The tumours were most often observed in the paragenital region (around the genitals) of the studied animals.
Implications
- The researchers found that pre-entry quarantine procedures did not seem to significantly influence the spread of the disease. This indicates that the method of transmission may not easily be preventable through the isolation of new or infected animals.
- There were indications that animals that were in close contact with each other were more likely to develop sarcoids than those in the wider population. This suggests that either an infectious/transmissible agent is involved in triggering the disease, or that exposure to certain shared circumstances or environmental factors predisposes them to developing it.
Conclusions and Further Study
- Based on these findings, the researchers suggested that there is a possibility of a transmissible agent being involved in the cause or progression of the disease.
- The shared circumstance or event that exposed animals to the disease requires further investigation to be definitively understood.
Cite This Article
APA
Reid SW, Gettinby G, Fowler JN, Ikin P.
(1994).
Epidemiological observations on sarcoids in a population of donkeys (Equus asinus).
Vet Rec, 134(9), 207-211.
https://doi.org/10.1136/vr.134.9.207 Publication
Researcher Affiliations
- Department of Veterinary Medicine, University of Glasgow Veterinary School, Bearsden.
MeSH Terms
- Age Factors
- Animals
- Female
- Incidence
- Male
- Papilloma / epidemiology
- Papilloma / veterinary
- Perissodactyla
- Risk Factors
- Scotland / epidemiology
- Skin Neoplasms / epidemiology
- Skin Neoplasms / veterinary
Citations
This article has been cited 6 times.- Gysens L, Vanmechelen B, Haspeslagh M, Maes P, Martens A. New approach for genomic characterisation of equine sarcoid-derived BPV-1/-2 using nanopore-based sequencing. Virol J 2022 Jan 6;19(1):8.
- Wilson AD, Hicks C. Both tumour cells and infiltrating T-cells in equine sarcoids express FOXP3 associated with an immune-supressed cytokine microenvironment. Vet Res 2016 May 9;47(1):55.
- Wobeser BK, Davies JL, Hill JE, Jackson ML, Kidney BA, Mayer MN, Townsend HG, Allen AL. Epidemiology of equine sarcoids in horses in western Canada. Can Vet J 2010 Oct;51(10):1103-8.
- Carstanjen B, Jordan P, Lepage OM. Carbon dioxide laser as a surgical instrument for sarcoid therapy--a retrospective study on 60 cases. Can Vet J 1997 Dec;38(12):773-6.
- Reid SW, Mohammed HO. Longitudinal and cross-sectional studies to evaluate the risk of sarcoid associated with castration. Can J Vet Res 1997 Apr;61(2):89-93.
- Broström H. Equine sarcoids. A clinical and epidemiological study in relation to equine leucocyte antigens (ELA). Acta Vet Scand 1995;36(2):223-36.
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