![]() ![]() ![]() The degree of amyloid deposition within each organ was divided into three grades according to Performed to detect AA protein using an anti-AA antibody (MX-Amyloid A, mouse monoclonalĪntibody, Kyowa Medix) and Histofine Simple Stain MAX-PO (MULTI) kit (Nichirei, Tokyo, TheĬongo-red stained sections were observed under polarized light. To the standard method and stained with hematoxylin and eosin (HE), and Congo red. Paraffin sections were prepared according The liver, spleen, and kidneys were immersed in 10% neutralīuffered formalin solution for the necropsy survey. Breeding colonies C, D, and E were outbred and parent birds were Breeding colonies A and B were inbred and parent birds were introduced intoĬolony B from colony A. The birds were found to have died without any clinicalĭescription. Two hundred and thirty-five dead Bengalese finches from 5 breeding colonies were collectedĪnd analyzed between 20. Investigation focused on the three visceral organs that are most frequently affected by avianĪmyloidosis, i.e., the liver, spleen, and kidneys [ 5, Incidence of amyloidosis in dead Bengalese finches in breeding colonies. Therefore, a retrospective necropsy survey was conducted to determine the The best known and most common pet among the order Passeriformes, in addition to being aīengalese finches with abdominal distension were occasionally found to have died in someīreeding colonies over the last several years, and amyloidosis was diagnosed in these birds domestica) species was createdĪrtificially in China or Japan, with roots in the white-rumped munia ( Lonchura The Bengalese finch ( Lonchura striata var. Was observed in a colony of zebra finches recently, but the actual incidence rate has not been The Anatidae family (e.g., swans, geese, and ducks) [ 3,Ĭontrast, amyloidosis is a relatively rare disease in other birds, including doves, finches,Īmyloidosis was reported in three finch species of the order Passeriformes: the GouldianĪustralian diamond firetail finch ( Stagonopleura bella), and the zebra finch ( Taeniopygia Although the true incidence of avian amyloidosis isĭifficult to assess, the highest recorded incidence in birds is in Anseriforms, especially in Amyloid-β protein deposition has also been described in the brain ofīirds. A majority of spontaneousĪmyloid cases have been characterized by amyloid A (AA) deposition in virtually all tissuesĮxcept the brain parenchyma. Amyloidosis can be classified into localized or systemic types, depending onĪmyloidosis is a well-recognized pathological disorder in birds. Amyloidosis is a group of diseases and is characterized by the extracellular deposition ofĪmyloid protein within various organs in humans and animals. ![]()
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