Prevalence of strongyle nematodes in naturally infected ponies of different ages and during different seasons of the year in Louisiana

The Journal of Parasitology
M R ChapmanT R Klei

Abstract

One hundred and seventeen ponies were surveyed for the seasonal prevalence of strongyloid parasites, particularly cyathostomes, and for host- and age-related differences in these infections. For 56 ponies, all stages of the cyathostome life cycle, both mucosal and luminal, were enumerated. Total numbers of cyathostomes and percentage of developing larvae (DL) encysted in the mucosa remained constant in all 4 seasons of the year, whereas a significant increase in the percentage of adults in the cyathostome population occurred in fall. In yearling ponies, encysted early third-stage larvae constituted a significantly lower percentage of the cyathostome population, and DL and adults formed a significantly higher percentage, compared with those stages in older ponies, 2-5 yr of age. More species of cyathostomes were present in yearling ponies than in older ponies. Significant differences occurred in fecal egg counts at different seasons of the year, even though adult cyathostome and large strongyle numbers remained constant. Twenty-four species of cyathostomes were found year-round, and 2 rare species were found in only 2 or 3 seasons of the year. Prevalences for these 24 species were not significantly different during any season, a...Continue Reading

References

Jan 1, 1989·Australian Veterinary Journal·M W Mfitilodze, G W Hutchinson
Jun 1, 1985·International Journal for Parasitology·M W Mfitilodze, G W Hutchinson
Jul 1, 1984·Veterinary Parasitology·C R ReinemeyerR P Herd
Jun 1, 1995·International Journal for Parasitology·D G BucknellI Beveridge
Sep 15, 1999·Veterinary Parasitology·S LoveD Mellor
Sep 15, 1999·Veterinary Parasitology·T R Klei, M R Chapman
Sep 15, 1999·Veterinary Parasitology·C R Reinemeyer
Sep 15, 1999·Veterinary Parasitology·C H Courtney
Sep 15, 1999·Veterinary Parasitology·T M Craig
Apr 7, 2000·The Veterinary Clinics of North America. Equine Practice·T R Klei
Jan 10, 2002·The Journal of Parasitology·M R ChapmanT R Klei

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Citations

Apr 8, 2014·Veterinary Parasitology·M K NielsenG von Samson-Himmelstjerna
Jan 18, 2014·Veterinary Parasitology·M K NielsenR M Kaplan
Sep 26, 2009·Parasites & Vectors·Martin K Nielsen
Nov 26, 2010·Parasitology Research·Tetiana A KuzminaEugene T Lyons
Sep 11, 2012·Parasitology Research·M B StudzińskaK Szczepaniak
Aug 4, 2011·Equine Veterinary Journal. Supplement·P FogM K Nielsen
Feb 4, 2014·Veterinary Parasitology·Andrew S PeregrineMartin K Nielsen
Sep 10, 2014·Veterinary Parasitology·Eugene T LyonsKaren J McDowell
Jan 17, 2015·International Journal for Parasitology·Sławomir KornaśJacques Cabaret
Mar 1, 2019·International Journal for Parasitology. Parasites and Wildlife·Andrea M HarveyJan Šlapeta
Sep 7, 2019·International Journal for Parasitology. Drugs and Drug Resistance·Dave M LeathwickMartin K Nielsen
Jan 23, 2021·Veterinary Parasitology·Martin K NielsenAshley E Steuer
Apr 22, 2018·Veterinary Immunology and Immunopathology·A E SteuerM K Nielsen

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