Prevalence of Anoplocephala perfoliata in horses and ponies in Clwyd, Powys and adjacent English marches

Owen, R; Jagger, D W; Quan-Taylor, R

doi:10.1136/vr.123.22.562

Cited by 29 publications

(24 citation statements)

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“…These observations are in agreement with other investigators (Lyons et al, 1983;Owen et al, 1988;Fogarty et al, 1994). These observations are in agreement with other investigators (Lyons et al, 1983;Owen et al, 1988;Fogarty et al, 1994).…”

Section: Discussionsupporting

confidence: 94%

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The prevalence and epidemiology ofAnoplocephala perfoliata infection in Norway

Ihler¹,

Rootwelt²,

Heyeraas

et al. 1995

Vet Res Commun

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The caecum and the adjacent 30 cm lengths of ileum and large colon of 201 horses from two different regions of Norway (Ostlandet and Trøndelag) were examined for the presence of Anoplocephala perfoliata. In all, 20% of the horses were infested with the cestode (27% in Ostlandet and 7% in Trøndelag). The mean number of worms in infected horses from the two regions was 18 and 6, respectively. Information was obtained on the age, sex, breed, type of pasture and anthelmintic treatment after the grazing season for 183 of the 20 horses. The degree of infestation with A. perfoliata was not influenced by age, breed or sex. The odds ratio (confidence limits) for using permanent pastures that had been grazed by horses for at least the 5 last years in succession was 8.8 (3.2-24.4). There was a significantly higher prevalence of A. perfoliata infestation in Ostlandet (odds ration 3.1 (1.1-9.1). The relatively low prevalence of A. perfoliata infestation in Norwegian horses compared to the reported prevalences in other countries and the differences in the prevalence between Ostlandet and Trøndelag are discussed. Gross pathological examination identified lesions such as mucosal thickening, hyperaemia and/or erosions. These lesions were found in all of the infected horses, compared with only 5% of the non-infected horses. Examination of faecal samples from 26 of the infected horses detected cestode eggs in only three cases. It was concluded that faecal examination is an inadequate method for the diagnosis of A. perfoliata infestation.

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Section: Discussionsupporting

confidence: 94%

“…The percentage of horses infected with A. perfoliata was considerably lower than that reported by other investigators (Owen et al, 1988;Bain and Kelly, 1977;Ljungstr0m et al, 1993;Fogarty et al, 1994). Climatic differences between Norway and other countries may be one reason for the difference in prevalence.…”

Section: Discussionmentioning

confidence: 62%

The prevalence and epidemiology ofAnoplocephala perfoliata infection in Norway

Ihler¹,

Rootwelt²,

Heyeraas

et al. 1995

Vet Res Commun

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“…Despite the relatively limited data reported in this study, the percentage of horses infected with A. perfoliata (64.5% detection rate) was similar to that reported in previous studies (Slocombe, 1979;Imrie and Jacobs, 1987;Owen et al, 1988;Pearson et al, 1993;Fogarty et al, 1994;Williamson et al, 1997). Mean abundance and mean intensity, as defined by Bush et al (1997), were 49.7 and 77, respectively.…”

Section: Discussionsupporting

confidence: 83%

“…However, since the 1980s the increasing number of case reports describing a close association between specific causes of equine colic, such as ileal impaction, ileocecal and cecocaecal intussusception, caecal rupture and spasmodic colic and A. perfoliata infection (Barclay et al, 1982;Beroza et al, 1985;Cosgrove et al, 1986;Owen et al, 1988;Proudman and Edwards, 1992;Proudman et al, 1998;Biglietti and Garbagnati, 2000) has focussed interest on the role that this parasite plays as a risk factor for specific types of equine intestinal ailments (Boswinkel and Sloet van Oldruitenborgh-Oosterbaan, 2007).…”

Section: Introductionmentioning

confidence: 97%

Pathological changes caused by Anoplocephala perfoliata in the mucosa/submucosa and in the enteric nervous system of equine ileocecal junction

Pavone¹,

Veronesi²,

Genchi³

et al. 2011

Veterinary Parasitology

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“…With some species variation, oribatid mites appear to prefer certain habitats over others and exhibit peak abundance at specific times during the year (van Nieuwenhuizen et al 1994). Anoplocephala perfoliata, however, is highly prevalent in numerous countries on several continents, representing a wide range of possible habitats (Bain and Kelly 1977;Slocombe 1979;Lyons et al 1983Lyons et al , 2000Reinemeyer et al 1984;Owen et al 1988;Benton and Lyons 1994;Fogarty et al 1994;Bucknell et al 1995;Borgsteede and van Beek 1996;Hinney et al 2011;Rehbein et al 2013;Tomczuk et al 2015). Anoplocephala perfoliata, however, is highly prevalent in numerous countries on several continents, representing a wide range of possible habitats (Bain and Kelly 1977;Slocombe 1979;Lyons et al 1983Lyons et al , 2000Reinemeyer et al 1984;Owen et al 1988;Benton and Lyons 1994;Fogarty et al 1994;Bucknell et al 1995;Borgsteede and van Beek 1996;Hinney et al 2011;Rehbein et al 2013;Tomczuk et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Equine tapeworm infections: Disease, diagnosis and control

Nielsen

2015

Equine Veterinary Education

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Summary Equine tapeworm infection has gained increasing attention over the past few decades and a number of research studies have already been published. These focus primarily on the most common of the 3 tapeworm species, Anoplocephala perfoliata, although some new information has also been generated for the other two species, Anoplocephala magna and Anoplocephaloides mamillana. The preponderance of research studies have focused on development and validation of diagnostic techniques for tapeworm detection and the role of these parasites in equine gastrointestinal disease. Several diagnostic techniques have been found useful for diagnosis of A. perfoliata but each has its strengths and weaknesses. Egg counting techniques have been modified to achieve acceptable to good diagnostic performance but the trade‐off is often a more time‐consuming method. Validation studies indicate that these methods can reliably detect tapeworm burdens above 10 worms. Several enzyme‐linked immunosorbent assays (ELISAs) have been developed and made commercially available. These can generate useful information about tapeworm exposure on the herd level but are less reliable for individual diagnosis. Unfortunately, none of the available diagnostic techniques are useful for evaluating anthelmintic treatment efficacy. Coproantigen testing may find use as a future diagnostic modality but further characterisation is required. The large body of scientific evidence supports an association between A. perfoliata infection and certain types of equine colic, although some discrepancy exists between studies. Tapeworm surveillance and control should be considered as part of the overall parasite control strategy. When properly used, the currently available diagnostic tools can guide the veterinarian to make strategic decisions regarding tapeworm control.

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Prevalence of Anoplocephala perfoliata in horses and ponies in Clwyd, Powys and adjacent English marches

Abstract: The prevalence of Anoplocephala perfoliata in 103 horses and ponies from Clwyd, Powys and the adjacent English marches, slaughtered during January 1987, was 69 per cent.

Cited by 29 publications

References 0 publications

The prevalence and epidemiology ofAnoplocephala perfoliata infection in Norway

The prevalence and epidemiology ofAnoplocephala perfoliata infection in Norway

Pathological changes caused by Anoplocephala perfoliata in the mucosa/submucosa and in the enteric nervous system of equine ileocecal junction

Equine tapeworm infections: Disease, diagnosis and control

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