Chicken gizzard is an acute septic disease caused by the virus. More than the incidence of spring and autumn, rapid infection, high mortality. The disease is lurking for 3-5 days. The most acute type, acute type, chronic type three.

The main symptoms: elevated body temperature (43-44°C), eyes closed, loose hair, necking, hanging wings, gait instability or circling; crown black purple, mouth mucus, shaking his head, playing slightly, issued "reaction, "Squeaking, breathing difficulties, pulling green or yellow feces; late legs, numbness, high mortality.

Prevention and cure: 1. Do a good job of vaccination; 2. Dilute a 0.1-0.3% aqueous solution with chicken Newcastle disease III (F system) vaccine, allow the chicken to eat freely, and be immune for 7 months; 3. Strictly blockade the epidemic area and carry out Thorough disinfection; 4. Dead bodies, excrement, and bedding should be incinerated and buried deeply.

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