A Quantitative Study of the Nematodes from a Selected Group of Equines in Panama

Foster, A. O.

doi:10.2307/3271692

Cited by 20 publications

(11 citation statements)

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“…Similar to our results and those of other publications, the dorsal colon and the ventral colon were preferred by most species (Le ROUX, 1924;FOSTER, 1936;FOSTER & ORTIZ, 1937;OGBOURNE, 1976;RODRIGUES et al, 2000;ANJOS & RODRIGUES, 2006). The preference of C. nassatus (P< 0.01) for the …”

Section: Discussionsupporting

confidence: 92%

“…certain location within the intestine, the occurrence in the three compartments is commonly recorded, which can be explained by seasonality (OUGBOURNE, 1976) and the phase of development of the parasites (OUGBOURNE, 1976;FOSTER, 1936), which could occur anywhere in the intestine, with later migration of newly hatched adults to their favourite habitat (FOSTER, 1936). In spite of the fact that this is subject to speculation, biochemical and nutritional conditions are other factos which, according to OGBOURNE (1976), would explain the preference for certain locations in the intestine, as also the co-existence of several different species as parasites on the same host.…”

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confidence: 99%

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Ecological aspects of small strongylids in the Paraíba Valley Region, State of São Paulo, Brazil

Pereira

Vianna

2008

Cienc. Rural

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Section: Discussionsupporting

confidence: 92%

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confidence: 99%

Ecological aspects of small strongylids in the Paraíba Valley Region, State of São Paulo, Brazil

Pereira

Vianna

2008

Cienc. Rural

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“…Foster (1937) and Ward (1948) reported a reduction in numbers with host age but the present results, though not amenable to statistical analysis, do not suggest marked age differences in adult worm burden. Foster (1937), in Foster (1936) 18-2 54-5 62 22-2 68 38 26-7 3-2 95-2 58-7 10-5 6 0 0…”

Section: Discussionmentioning

confidence: 99%

The prevalence, relative abundance and site distribution of nematodes of the subfamily Cyathostominae in horses killed in Britain

Ogbourne

1976

J. Helminthol.

131

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A total of 21 species of Cyathostominae was found in the lumen of the large intestine of 86 mature horses of various ages and breeds killed in south-west England during 1972–1974. Cylicostephanus longibursatus, C. goldi, C. calicatus, Cyathostomum catinatum, C. coronatum and Cylicocylus nassatus were found in over 80% of the horses, while 12 of the remaining species were detected in less than 30%. Quantitative studies on 55 horses showed the adult cyathostome burdens to rise to a sharp peak (average over 400,000/horse) in April-June and a lower one in November-December. Parallel fluctuations occurred in the lumen populations of 4thstage larvae. The most numerous cyathostomes were generally those species with the highest prevalence. The five most plentiful (C. nassatus, Cyathostomum catinatum, Cylicostephanus longibursatus, C. minutus and C. goldi) comprised over 90% of the total number of adult cyathostomes recovered. The three regions of the large intestine had adult cyathostome faunas of different composition. That of the dorsal colon was dominated by C. longibursatus and C. goldi, the ventral colon by Cylicocyxlus nassatus and Cyathostomum catinatum, while the sparsely inhabited caecum accommodated several equally numerous species. Each species showed a characteristic site distribution, 11 occurring predominantly in the ventral colon, eight in the dorsal colon and two in the caecum. Seasonal changes in the site distributions of C. catinatum and Cylicocyclus nassatus and in the size of the cyathostome burdens are discussed in relation to the epidemiology of cyathostome infections.

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“…However, in literature searches, the current authors were not successful in finding specific references of C. hybridus in the USA although such publications may have been overlooked. Foster (1936) and Ortiz (Foster and Ortiz 1937) found C. hybridus (prevalence 16%) in a few equids in Panama; they were owned by the Panama Canal Department of the U.S. Army. He states that all of the equids were imported and had been in the Canal Zone for several years; whether some came from the USA is not mentioned.…”

Section: Cylicostephanus Bidentatus (Ihle 1925) Lichtenfels 1975mentioning

confidence: 99%

Three recently recognized species of cyathostomes (Nematoda: Strongylidae) in equids in Kentucky

2010

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Three species of cyathostomes--Cylicocyclus ashworthi, Cylicostephanus bidentatus, and Cylicostephanus hybridus were identified recently in horses in Kentucky. General characteristics and distinguishing description of these species are presented. Distribution of these species and their role in the horse strongylid community are discussed. The importance of examining the entire contents of the large intestine or alternatively a high number of specimens in order to recover and identify species residing in low numbers is stressed.

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A Quantitative Study of the Nematodes from a Selected Group of Equines in Panama

Cited by 20 publications

References 0 publications

Ecological aspects of small strongylids in the Paraíba Valley Region, State of São Paulo, Brazil

Ecological aspects of small strongylids in the Paraíba Valley Region, State of São Paulo, Brazil

The prevalence, relative abundance and site distribution of nematodes of the subfamily Cyathostominae in horses killed in Britain

Three recently recognized species of cyathostomes (Nematoda: Strongylidae) in equids in Kentucky

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