Page 18 - Disease Manual of Japfa
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Marek’s Disease
Caused by : Herpes Virus
Age of infection : Any age. Usually 6 weeks or older.
Symptoms : Paralysis of bird, feather follicles, weight loss, eye contarct,twisted neck.
PM lesions :
Tumours in liver, kidney & spleen
Bursa diffuse enlargement or atropy
Nodular ovary
Eye Catract Twisted neck
Paralysis of legs Tumor lesions on liver
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