Onions are food for people, but poison for dogs because they contain n-propyl disulfide. It can oxidize hemoglobin and form Heinz corpuscles. Red blood cells containing a large number of these corpuscles can be swallowed up by reticuloendothelial system cells and cause anemia. It can also damage bone marrow. The experiment confirmed that Heinz corpuscles could be found in red blood cells by feeding dogs a medium-sized cooked onion or cooked food mixed with onion juice continuously, and severe anemia appeared on the 7th 7- 10/0 day. The oral dose of onion poisoning in dogs is 15-20g/kg body weight, which may occur when dogs are fed cooked food with onion and onion juice.

Poisoned dogs have two symptoms:

1. Acute poisoning generally occurs 0-2 days after eating 65438+. There is obvious red urine, and the color of urine varies from light red to dark red. When severely poisoned, the dog's urine is brown or soy sauce-colored, with symptoms such as loss of appetite, depression, palpitation, vomiting and diarrhea, which can lead to death if not treated in time.

2. Chronic poisoning is more common in dogs that feed a small amount of onion or onion juice for a long time, and often manifests as mild anemia and jaundice.

Diagnosis method: (1) According to the cooked food fed with onion or onion juice and the history of typical hemoglobinuria, the diagnosis can be basically made. (2) Laboratory examination: routine blood examination (acute poisoning: the plasma is pink, the number of red blood cells, hemoglobin and Ht value are moderately decreased, reticulocytes are increased, red blood cells are different in size, obviously stained, and the total number of white blood cells is slightly increased. Chronic poisoning: polychromatic erythrocytes and erythrocytosis with a large number of Heinz bodies. ), blood biochemistry and urine test are helpful to the diagnosis of the disease.

Treatment:

Dogs with mild poisoning can recover naturally after stopping feeding onions immediately; For dogs with severe hemolysis, glucose solution or Ringer's solution, ATP, coenzyme A, VC, etc. Can be injected intravenously; Oral or intramuscular injection of vitamin B and vitamin E complex. Subcutaneous injection of caffeine sodium and furosemide; Dogs with severe anemia can receive blood transfusion or blood supplement. According to the condition of the sick dog, antibiotics, prednisone and dexamethasone can be given appropriately.

Experience:

1. This disease usually occurs two days after eating onions, and many occur a week later.

2. Dog owners don't know that onions will be poisoned, and they won't tell doctors that they have been fed onions. Doctors often ignore this consultation. This disease is easy to be misdiagnosed.

3. The history of feeding onion, anemia and hemoglobinuria are the key to diagnose the disease.

4. Blood transfusion can greatly improve the cure rate of diseases when necessary.

If the ingredient is 8.3%, half an onion ring is fine, but the landlord should pay attention to it in the future and don't feed it again.

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