MySheen

Chicken encephalomyelitis

Published: 2024-11-23 Author: mysheen
Last Updated: 2024/11/23, Chicken encephalomyelitis is caused by virus, which mainly harms chicks under 1 month old. Diseased chickens gradually cannot stand, land on the ground with flying joints, sit on the ground, or lie on one side; some diseased chicks show paroxysmal tremors in their heads and necks, and sudden noise can induce tremors. Sick chicks always have an appetite, move the trough to the side to eat, most sick chicks do not have access to feed and drinking water, and finally die of exhaustion. The morbidity is generally 10-20%, and the average mortality rate is about 10%. There are many in the muscle layer of glandular stomach and muscular stomach.

Chicken encephalomyelitis is caused by virus, mainly harmful to chickens under 1 month of age, sick chickens gradually can not stand, to fly joint landing, sitting on the ground, or straighten a limb on the side; some sick chicks head and neck performance paroxysmal tremor, sudden noise can induce tremor. Sick chicks always have appetite, will feed trough moved to the side can feed, most sick chicks because of lack of feed and water, and finally exhaustion and death. Morbidity is generally 10- 20 per cent and mortality averages around 10 per cent.

[Necropsy] There are many small white lesions in the muscle layer of glandular stomach and muscle stomach, which are slightly larger than the needle tip and are not easy to observe. Cut thin slices from the muscle of muscle stomach with sharp blade and observe with magnifying glass under strong light. If very few exist, normal chickens also have them.

[Diagnostic Points]

(1)It is mainly harmful to chicks within 1 month of age.

(2)Weak legs, flying joints landing, head and neck tremor, sick chicks always have appetite.

[Prevention]

(1)Chickens have been confirmed when the disease, where the symptoms of chicks should be immediately eliminated, buried, protect other chicks.

(2)In the epidemic areas, breeders should be 100-120 days old inoculated with chicken encephalomyelitis vaccine, there is a good effect.

 
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