Yurdumuzda Avian Encephalomyelitis Olayları ve Göz Bulguları

Yıl 1971, Cilt: 3 Sayı: 11-12, 1 - 26, 01.12.1971

Hamdi Girgin

Öz

Avian encephalomyelitis ilk olarak Türkiye'de klinik, epidemiyolojik,
histopatolojik yoklamalar ve hastalığı nakletme denemeleri
ile Ocak- 1971 de teşhis edildi. Bugüne kadar hastalık Ankara'da
iki tavuk çiftliğinde görüldü. Enfeksiyonun yetiştirme - materyal
ile yurda sokulduğu sanılmaktadır.
Bu çalışmada, 2 - 4 haftalık iken hastalığa yakalanan ve Etlik
Veteriner Araştırma ve Kontrol Enstitüsüne gönderilen hastalıklı
50 civcivin- 100 gözü incelenmiştir.
Yapılan yoklamalarda; a - iritis, iridocyclitis, choroiditis,
chorioretinitis, uveitis ve endophthalmitis; b - katarakt benzeri
lezyonlar; c - retinanın ganglion gözeleri katında nöronların soysuzlaşma
ve nekrozisi, optik sinir telleri katının dış kesiminde vakuolleşme, fotoreseptörlerin dış segmentlerinde lamina'lı yapının
bozulması ve büyük küçük vakuolleşme, retina ayrılması ve anormallikleri;
d - optik sinirde gliosis; e - irisin arka yapışıklığı;f - keratik çökelekler; ve g - gözkapaklarında lenfoid adacıklar bulunmuştur.
Hastalığın patogenezisi tartışılmıştır. Bu konuda fazla çalışma yapılmasına rağmen henüz açıklanmayan taraflar bulunmaktadır.

Anahtar Kelimeler

Avian Encephalomyelitis, Göz, 1971, Hamdi GİRGİN, göz bulguları

The First Recorded Cases of Avian Encephalomyelitis in Turkey and the Studies on Ocular Lesions

Öz

Two outbreaks of avian encephalomyelitis were detected for
the first time in two poultry farms in Balgat and Gölbası, Ankara,
Turkey. The disease was diagnosed by clinical, epidemiological,
histopathological examinations and transmission experiments in
January 1971. The infection was probably introduced into Turkey
with iınported breeding ınaterial from abroad.
In this study, 100 eyes taken from 50 diseased chicks aged 2-4
weeks were examined histopathologically.
In the examination, a - iritis, iridocyclitis, choroiditis, chorioretinitis,
uveitis and endophthalmitis; b - cataractous lesions; c-
euronal degeneration and necrosis with lass of neurons in the ganglion
cell layer, and large vacuoles in the outer portion .of the optic
nerve fiber layer, fragınentation of the outer segments of the photoreceptors
with disorientation .of their laminated structures', and
retirral detachment and retİnal abnormalities; d - gliosis in the
optic nerve; e - posterior synechiae; f ~ keratic precipitates and
g ..,.- lymphoid islands in the eyelids wer~ found.
The pathogenesis .. of the disease was discussed. Althought its
pathogenesis has been the subject of much study, it is stili not
clear. Much study is needed on the possible effect of the avian encephalomyelitis
virus upon ocular structure.

Kaynakça

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