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Prevalence of some internal parasites recovered at necropsy of Thoroughbreds born in 1982 in Kentucky.
Abstract: A total of 89 Thoroughbreds, 14 to 333 days old (born in 1982), were examined at necropsy for certain internal parasites during a 1-year-period, Mar 1, 1982, to Feb 28, 1983. The eyes of 73 of the horses and the cranial mesenteric arteries of 71 were examined. Specific interest was on prevalence of parasites according to month of the year and age of the horses at necropsy. Parasites recovered (first month-last month infected horse found) were as follows: Thelazia lacrymalis (eyes) immature and mature (June - February); Habronema/Draschia (lungs) immature (May - September); Habronema muscae (stomach) immature (July - February) and mature (September - February); Draschia megastoma (stomach) immature (August - December), mature (August - February), and lesions (September - February); Gasterophilus intestinalis (stomach) 2nd instars (July - February) and 3rd instars (August - February); Gasterophilus nasalis (stomach) 2nd instars (August - November) and 3rd instars (August - February); Parascaris equorum (lungs) immature (March - November), P equorum (small intestine) immature (March - February), and mature (July - February); Strongyloides westeri (small intestine) mature (March - September); Anoplocephala perfoliata (cecum) immature and mature (August - February); Strongylus vulgaris (cranial mesenteric artery) immature and mature (May - February). Other parasites recovered, but only from 1 or 2 horses each (months found in infected horses) were: Thelazia skrjabini (eyes) (October), Dictyocaulus arnfieldi (lungs) (January); Trichostrongylus axei (stomach) (October); Anoplocephala magna (small intestine) (October, November); S vulgaris (cecum) (November); Strongylus edentatus (cecum) (January); Setaria spp (abdominal cavity) (January). Influence of probable chemotherapy of the horses on prevalence of the parasites is discussed.
Publication Date: 1985-03-01 PubMed ID: 3994134 The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
Summary
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This research study investigates the occurrence of certain internal parasites in Thoroughbred horses born in Kentucky in 1982. The study paid specific attention to the parasites present during different months of the year and the age of the horses at the time of autopsy.
Study Methodology
- 89 Thoroughbreds aged between 14 to 333 days old and born in 1982 were examined at necropsy (the post-mortem examination of a corpse).
- The research was conducted over one year from March 1, 1982, to February 28, 1983.
- The eyes of 73 of the horses and the cranial mesenteric arteries of 71 horses were examined for specified parasites.
Parasites Identified
- Parasites found included Thelazia lacrymalis in the eyes, Habronema and Draschia in the lungs, Habronema muscae, and Draschia megastoma in the stomach.
- In the stomach, the larvae of two types of Gasterophilus species (G. intestinalis and G. nasalis) were found.
- Other parasites were found in the lungs, the small intestine, the cecum (a part of the large intestine), and the abdominal cavity.
- In addition to these parasites, a few other parasites were only found in one or two horses each.
Parasite Prevalence and Chemotherapy
- The research examined the prevalence of these parasites according to the time of year and the age of the horses at necropsy.
- The times when each type of parasite was found were mentioned, with most parasites present in multiple months.
- The potential influence of probable chemotherapy on the prevalence of the parasites was also discussed, suggesting that some horses may have been treated with anti-parasitic drugs before their death which may have affected the dispersion of parasites.
Cite This Article
APA
Lyons ET, Tolliver SC, Drudge JH, Swerczek TW, Crowe MW.
(1985).
Prevalence of some internal parasites recovered at necropsy of Thoroughbreds born in 1982 in Kentucky.
Am J Vet Res, 46(3), 679-683.
Publication
Researcher Affiliations
MeSH Terms
- Age Factors
- Animals
- Eye / parasitology
- Female
- Horse Diseases / transmission
- Horses / parasitology
- Intestine, Small / parasitology
- Kentucky
- Lung / parasitology
- Male
- Mesenteric Arteries / parasitology
- Parasites
- Parasitic Diseases / transmission
- Parasitic Diseases, Animal
- Seasons
- Species Specificity
- Stomach / parasitology
Citations
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