Diagnosis and treatment of black swan gout

Avian gout is a nutritional disease caused by nuclear protein metabolism disorder in birds. It is characterized by accumulation of a large amount of urate in various organs (visceral type) and joint tissues (joint type). Clinically, it is manifested as slow movement, swelling of legs and wings, anorexia, diarrhea, etc. White swans, blue peacocks, white peacocks, black pheasants, white pheasants and other birds in our garden have had gout. A case of black swan gout in our garden is reported as follows.

I. Incidence of disease 10 white swans, 6 black swans and dozens of wild ducks are raised in the swimming bird lake in our garden. On January 10, 2004, keepers discovered that a female black swan bred in the first half of last year showed poor spirits, loose stools and reluctance to move. Caught inspection, found that the body emaciated, crop without food, temperature 42℃. Then intravenous injection of 5% glucose and sodium chloride injection, amikacin, vitamin C, dexamethasone sodium phosphate injection, etc., but the condition did not improve, the next morning died.

II. Clinical symptoms: sick birds are listless, lying on the ground, or standing on one side, unwilling to walk, rarely active in water; mouth opening and closing weakness, loss of appetite; stool is watery, white, perianal feathers adhere to white loose stool.

III. Autopsy changes There are a lot of white urate deposits in knee and wing joints; epicardium, liver and kidney surfaces are covered with a layer of white, lime-like urate deposits; urate is also deposited in glandular stomach, pancreas and mesentery; liver flesh changes, kidney enlargement, pale color, full of bleeding spots, solid touch; ovary atrophy, egg degeneration. The initial diagnosis was avian gout based on a large amount of urate deposition.

4. Prevention and control experience (1) The water quality of swimming bird lake should be clean, preferably flowing water; Balance diet, increase the supply of green feed, artificially increase the supply of vitamin A and vitamin D at ordinary times, control the supply of calcium and phosphorus in diet; Reduce stress, add anti-stress drugs in feed or drinking water; 5 grams of allopurinol, mixed with 10 kilograms of feed, continuous use for 1~2 weeks, can obtain certain effects; Strengthen feeding management, increase exercise, pay attention to observation and environmental cleanliness. (2) In the swimming bird lake in our garden, the feed is mainly rice, supplemented by green vegetables, it is difficult to ensure that each animal individual diet balance. Due to the animals exhibited in the zoo, they have lived in a single environment for a long time, so they lack movement. And external factors affect its growth and development for a long time, such as water quality problems, tourists scare and so on. With the full understanding of infectious diseases and parasitic diseases, the economic losses caused by nutritional metabolic diseases are more and more recognized. Therefore, it is particularly important to accurately supplement target nutrients in animal diets or drinking water.