What are the prevention and control measures for colibacillosis in quail?
Prevention and control measures for Escherichia coli in quail
I. Incidence situation
The farm raised a total of 175,000 laying quail. Starting from July 18, some quail were found to be listless, and deaths occurred the next day, with an average of more than 700 deaths per day. By July 22, nearly 3,000 had died, with a mortality rate of 1.7%, and nearly 10% of the quail showed symptoms. The number of deaths continued to increase.
II. Clinical symptoms
Generally acute symptoms occur, mainly manifested as: fluffy feathers, drooping wings, unwillingness to move, reduced feed intake or refusal to eat, and some sick quail passing yellow-white watery droppings. The course of the disease is generally short; those found to be in poor spirits died the next day, and feed intake dropped significantly.
III. Necropsy changes
The epicardial surface was covered with a layer of yellow-white fibrinous membrane (4/12), and the liver surface was also covered with a fibrinous exudative membrane (3/12). Severe peritonitis formed in the abdominal cavity, with large amounts of yellow-white exudate attached to the surfaces of the abdominal organs, and some intestinal loops were adhered (9/12). The kidneys were enlarged, and the intestinal mucosa was congested and hemorrhagic (9/12).
IV. Prevention and control measures
Based on the specific conditions of high stocking density and high temperature at the farm, comprehensive prevention and control measures were immediately adopted. The whole flock was fed with feed mixed with 0.5% chloramphenicol, and drinking water contained 50×10-6 ciprofloxacin. At the same time, an appropriate amount of compound VB, water, and VC was added to the drinking water, and medication was continued for 5 days. The rearing environment was spray-disinfected with 1:200 Baidusha once daily. Ventilation and cooling in the poultry house were done well. After taking the above measures, the disease was basically brought under control.
The farm raised a total of 175,000 laying quail. Starting from July 18, some quail were found to be listless, and deaths occurred the next day, with an average of more than 700 deaths per day. By July 22, nearly 3,000 had died, with a mortality rate of 1.7%, and nearly 10% of the quail showed symptoms. The number of deaths continued to increase.
II. Clinical symptoms
Generally acute symptoms occur, mainly manifested as: fluffy feathers, drooping wings, unwillingness to move, reduced feed intake or refusal to eat, and some sick quail passing yellow-white watery droppings. The course of the disease is generally short; those found to be in poor spirits died the next day, and feed intake dropped significantly.
III. Necropsy changes
The epicardial surface was covered with a layer of yellow-white fibrinous membrane (4/12), and the liver surface was also covered with a fibrinous exudative membrane (3/12). Severe peritonitis formed in the abdominal cavity, with large amounts of yellow-white exudate attached to the surfaces of the abdominal organs, and some intestinal loops were adhered (9/12). The kidneys were enlarged, and the intestinal mucosa was congested and hemorrhagic (9/12).
IV. Prevention and control measures
Based on the specific conditions of high stocking density and high temperature at the farm, comprehensive prevention and control measures were immediately adopted. The whole flock was fed with feed mixed with 0.5% chloramphenicol, and drinking water contained 50×10-6 ciprofloxacin. At the same time, an appropriate amount of compound VB, water, and VC was added to the drinking water, and medication was continued for 5 days. The rearing environment was spray-disinfected with 1:200 Baidusha once daily. Ventilation and cooling in the poultry house were done well. After taking the above measures, the disease was basically brought under control.