Newcastle Poultry:
Clinical symptoms
The first symptom (which is common to most diseases) is decreased appetite and general weakness, followed by meningitis symptoms. encephalitis and other symptoms such as tilting of the head, neck muscle tics, involuntary head pulling back and intermittent movements of the third eyelid. In this disease, respiratory symptoms such as shortness of breath (respiratory distress) along with neurological symptoms such as twisting and uncontrollable movements of the neck, bending Cervical neck and finally the inability to hold the head and as a result it falls on the ground, lameness, inability to stand, muscle cramps, paralysis, looseness and tilting of the tip, and edema are observed, which are similar to the symptoms of the Beach form of the disease in chickens. Their condition is dire, they often die after 3-4 days.
Autopsy symptoms
In the respiratory system, symptoms similar to pneumonia can be observed with bleeding in the mucous membrane of the trachea. In the digestive system, swelling of the liver, inflammation and bleeding in the intestine, bleeding at the tips of the glands in the secretory area of the stomach, layering of the inner membrane of the gall bladder (quiline) are among the effects of this disease. In the cardiovascular system, bleeding spots. Large on the pericardium and coronary groove, as well as spot bleeding on the pericardial fat. In examining the carcasses of ostriches that died due to fighting with this disease. No typical pathological and histopathological lesions were observed.
This post is written by Mohammadkhojandy