Symptoms of Chicken Flu

Chicken flu has been more common in recent years. It mainly occurs in the poultry we raise. If chickens and ducks are infected, we should isolate or bury them so as not to affect human health. Currently, the main symptom of the disease, avian flu, is high lethargy in chickens. There may be symptoms such as tears, runny nose, bleeding, edema, and head and neck twisting, so if you find such symptoms, you should isolate yourself immediately.

For a terrible disease like fowl flu, we should treat it in time in our lives so that we can deal with the disease of fowl flu in our lives. We should also have some understanding of its symptoms so that we can discover the existence of fowl flu in our lives.

Acute septicemic avian influenza (typical avian influenza)

The main symptoms of sick birds are extreme depression, lethargy, gasping with open mouth, tears and runny nose (in waterfowl, pus-like fluid can sometimes be seen flowing out of the eyes and nose), cyanosis and hemorrhage of the crown and beard, swelling of the head and neck, and acute death. Some cases present with neurological symptoms such as ataxia, tremor, head tilt, and neck twisting.

The characteristic pathological changes are corneal opacity, conjunctival hemorrhage and ulcers; red and black patchy hemorrhages on the skin surface of wings and crop; calf hemorrhages (reddish-brown hemorrhagic patches on the calf scales) and edema are also common; subcutaneous edema (especially subcutaneous of the head, neck and chest) or gelatinous infiltration; lung hemorrhage and edema, grayish-white mottled necrosis of the spleen, brown mottled hemorrhage, degeneration and necrosis of the pancreas; bursal hemorrhage; bleeding and ulcers in the mucosa of the entire digestive tract from the mouth to the cloaca, or grayish-white spots and striped membranes (necrotic pseudomembranes); other tissues and organs may also have bleeding, and obvious fibrinous peritonitis and air sacitis are often seen.

Acute respiratory avian influenza (typical avian influenza)

The main symptoms of sick birds are runny eyes and nose, rapid breathing, coughing, sneezing, swollen sinuses, diarrhea, and some deaths (the mortality rate is higher when co-infected with Newcastle disease virus or other avian type I paramyxovirus strains). The main pathological changes are laryngeal and tracheal bleeding, accumulation of secretions in the sinuses, conjunctival edema and bleeding, and sometimes pathological changes similar to acute septicemic avian influenza are also seen.

Atypical avian influenza

Sick birds generally show symptoms of tearing, coughing, panting, diarrhea, a significant drop in egg production (a decrease of 50% to 80%), and sporadic deaths. The gross pathological changes are some exudative inflammation in the sinuses, trachea, air sacs, and intestines. Sometimes fibrinous exudates are seen in the air sacs, the cyst walls are thickened, yolk peritonitis occurs in the hens, and inflammatory exudates are present in the oviducts.

I believe that after reading the symptoms of chicken flu introduced in this article, you all know what the symptoms of chicken flu are like. The disease of fowl flu has a relatively large impact on poultry, and if we eat chickens infected with fowl flu, we will get avian influenza, so it is best to eat less chicken when avian influenza breaks out.