PMID: 6411460Jul 1, 1983Paper

"Haysickness" in Icelandic horses: precipitin tests and other studies

Equine Veterinary Journal
T AsmundssonT Johannesson

Abstract

Blood samples were taken from 18 healthy horses (Group A), 15 horses clinically diagnosed to have "haysickness" ("farmer's lung") (Group B), 10 closely related horses (Group C) and 14 inbred horses (Group D). Precipitins in sera were measured by double gel diffusion test against Micropolyspora faeni, Thermoactinomyces vulgaris, Aspergillus fumigatus, Alternaria, Penicillium and Rhizopus species. In Group A, all the horses were precipitin negative except one with a faint reaction to Rhizopus species. In Group B all had precipitin against M faeni. One horse also had precipitins against Rhizopus species and another against A fumigatus. In Group C, seven of the 10 horses had precipitins against M faeni. Of these, five had a history of respiratory signs, but two horses with a faint reaction had no such history. In Group D, four out of 14 horses had positive precipitin tests against M faeni. Of these four horses, three also had a faint reaction to A fumigatus and one a faint reaction to Alternaria species. All were asymptomatic. These results indicate that "farmer's lung" in man and "haysickness" in horses are of the same origin. However, further studies are necessary to substantiate the diagnostic or prognostic value of these precip...Continue Reading

References

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Citations

Oct 1, 1993·Veterinary Immunology and Immunopathology·R E HalliwellP M Dixon
Nov 26, 2008·Veterinary Immunology and Immunopathology·L TahonE Marti
Mar 16, 2007·Journal of Veterinary Medicine. A, Physiology, Pathology, Clinical Medicine·F KünzleE Marti
Jul 26, 2005·Veterinary Immunology and Immunopathology·A van der HaegenE Marti
Mar 15, 2015·The Veterinary Clinics of North America. Equine Practice·Pamela A Wilkins, Kara M Lascola
Mar 1, 1995·Zentralblatt für Veterinärmedizin. Reihe A·D DesmechtP Lekeux

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