Bursa yöresinde Avian encephalomyelitis salgını
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Date
1990
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Publisher
Uludağ Üniversitesi
Abstract
Bursa bölgesinde bulunan bir tavuk çiftliğinin 2 kümesinde titremeler, inkoordinasyon, tortikollis ve felçlerle seyreden bir hastalık ortaya çıkmıştır. Yapılan otopsilerde merkezi sinir sisteminde, özellikle hemisferlerin korteksinde 1-3 mm çapında, simetrik veya asimetrik, boz beyaz lekeler görüldü. İç organlarda bariz bir bozukluğa rastlanmadı. Histopatolojik yoklamada, beyinde perivasküler lenfosit infiltrasyonları, gliozis, kromatolizis ve nöron nekrozu ilk göze çarpan değişikliklerdi. İç organların, özellikle pankreas'ın histopatolojisinde, regioner lenf foliküllerinde hastalığa özgü olarak kabul edilen hiperplaziler saptandı. Ayrımsal tanı için gerekli bakteriyolojik, mikolojik ve serolojik testlerden olumsuz sonuçlar alındı. Hazırlanan inokulumun günlük duyarlı civcivlere inokülasyonu sonucu, bu civcivlerde ilk salgın hastalık lezyonlarının meydana geldiği görüldü. Bu bulgular ve sağıtım için antibiyoterapi ve E vitamini uygulamasından sonuç alınamaması; epideminin Avian encephalomyelitis için tipik olan bir aylık piliçlerde ani çıkış ve 2-3 haftada % 10 ölüm ile kendiliğinden sönmesi hastalığın tanımı için yeterli görüldü.
An outbreak with the clinical symptoms of shieviring, incoordination, torticollis and paralyses was noticed among two flocks on a chicken farm in Bursa. Upon the otopsies, symmetrical or asymetrical grayish-white spots with a diameter of 1-3 mm, were observed in the central nervous system, especially more frequent in the cortex of hemisfers. There were no significant lesions in visceral organs. Histopathologically, perivascular lymphocytic infiltrations, gliosis, chromatolysis and neuronal necrosis were readily detectable. Peculiar lymphocytic hyperplasiae and infiltrations were noted in the regioner lymph nodes of pancreas. Bacteriological, mycological and serological tests applied for differential diagnosis gave negative results. Inoculations to the susceptible one-day-old chicks produced lesions similar to those of the main disease seen in the flocks. The negative results from antibiotherapy and vitamin E administration, and the sudden outbreak and death of this epidemic in a month-old chicks with 10 % mortality were typical for Avian encephalomyelitis that is also known as Epidemic tremor in Turkey.
An outbreak with the clinical symptoms of shieviring, incoordination, torticollis and paralyses was noticed among two flocks on a chicken farm in Bursa. Upon the otopsies, symmetrical or asymetrical grayish-white spots with a diameter of 1-3 mm, were observed in the central nervous system, especially more frequent in the cortex of hemisfers. There were no significant lesions in visceral organs. Histopathologically, perivascular lymphocytic infiltrations, gliosis, chromatolysis and neuronal necrosis were readily detectable. Peculiar lymphocytic hyperplasiae and infiltrations were noted in the regioner lymph nodes of pancreas. Bacteriological, mycological and serological tests applied for differential diagnosis gave negative results. Inoculations to the susceptible one-day-old chicks produced lesions similar to those of the main disease seen in the flocks. The negative results from antibiotherapy and vitamin E administration, and the sudden outbreak and death of this epidemic in a month-old chicks with 10 % mortality were typical for Avian encephalomyelitis that is also known as Epidemic tremor in Turkey.
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Keywords
Bursa, Tavuk çiftliği, Chicken farm, Avian encephalomyelitis
Citation
Sönmez, G. vd. (1990). “Bursa yöresinde Avian encephalomyelitis salgını”. Uludağ Üniversitesi Veteriner Fakültesi Dergisi, 8-9(1-2-3), 7-16.