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bursal |
Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson | 0.01 sec. |
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bursal emanating from or pertaining to bursa. infectious bursal disease a disease of 3- to 6-week-old chickens caused by an Avibirnavirus which primarily and selectively destroys B lymphocytes in the bursa of Fabricius resulting in a secondary immunodeficiency. Clinical signs are variable and include diarrhea, feather ruffling and droopiness. Death is often a consequence of septicemia associated with normally nonpathogenic strains of bacteria such as Escherichia coli or Salmonella spp. The morbidity in an initial outbreak will be 100% and the mortality up to 30%. Called also Gumboro disease, infectious avian nephrosis. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Involvement of free-flying wild birds in the spread of the viruses of avian influenza, Newcastle disease and infectious bursal disease from poultry products to commercial poultry. This is an inflamed bursal sac located between the Achilles tendon and the bony prominence on the calcaneus. The penguins examined did not appear to be sick, but the researchers found antibodies to the pathogen, known as infectious bursal disease virus, in blood samples of 65 percent of 52 emperor penguin chicks. |
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