كتاب
Fungal diseases
- Dactylariosis ( Mycotic encephalitis)
Definition: Fungal disease characterized by nervous signs in turkey poults, quail chicks and chicks at 1-5 weeks old is the high susceptible age causing outbreaks.
Clinical signs:
Nervous signs: torticollis, incoordination, tremors, paralysis and death
Eye lesions and blindness also dyspnea may occur in rare cases.
P.M:
-Mycotic encephalitis
-Severe large, hardened, circumscribed cerebellar and cerebral lesion (necrosis is gray or yellow)
-Pulmonary granulomas are minimum
-Ocular lesion appear similar to aspergillosis
Diagnosis:
as signs, lesions, demonstration of brownish conidia and large number of gaint cells from brain.
Differential diagnoses include:
- Infectious Bronchitis Virus (IBV)
- Newcastle Disease (NCD)
- mycobacteriosis
- colibacillosis
- other mycoses (e.g., ochroconosis, zygomycosis)
- oncogenic tumors (e.g., Marek’s Disease, Avian Leukosis)
- nutritional encephalomalacia (Vit A ,E def.)
- post vaccinal reaction leads to gasping.
