Prevention and treatment of colibacillosis in chickens

Colibacillosis is a group of infectious diseases caused by pathogenic Escherichia coli. Symptoms include the death of embryos and chicks, septicemia, pneumocystitis, pericarditis, salpingitis, enteritis, peritonitis and coliform granuloma, etc., often combined with mycoplasmosis, and often secondary to other infectious diseases, treatment is very difficult, let's take a look at the prevention and treatment of chicken colibacillosis!

Symptoms of colibacillosis in chickens

Diseased chickens are depressed, eat less or not, stand apart or crouch, the crown is bluish-purple, the iris is gray, vision loss or blindness, loose feathers, feathers around the anus stick to feces, green or yellow-white thin feces, crouching, unable to stand, reluctant to move or claudication, joint enlargement, hepatomegaly, intestinal mucosal bleeding and ulcers, pericardial inflammation, ascites and yolk accumulation.

Etiology of colibacillosis in chickens

The pathogen of chicken colibacillosis is Escherichia coli of the family Escherichia coli. When the resistance of chickens decreases, such as overheating, overcooling, excessive density, malnutrition and other disease factors (Newcastle disease, avian influenza, infectious bronchitis, pasteurellosis, etc.), the barrier function of skin and mucosa can be reduced, and the large number of pathogenic Escherichia coli can lead to disease. Bacteria excreted from diseased chickens infect chicken embryos through fecal contaminated eggshells, resulting in embryo death and chicken disease. Feces pollute the environment and infect healthy chicks through drinking water, feed and air.

Prevention and treatment of colibacillosis in chickens

1. Intramuscular injection of Escherichia coli coliform: unimmunized chicks can be prevented and treated with Escherichia coli high immune serum, 1 ml for each under 15 days of age, 2 ml for each over 15 days of age, and repeated every other day; adult birds 0.5 ml / kg body weight, once a day, 2 times for severe cases.

2. Usage of 100-500 grams of oxytetracycline: mixed feeding, 100-500 grams per 100 kg of feed for 7 days. You can also use dysentery, 20-40 grams per 100 kg feed or norfloxacin (norfloxacin), 5-20 drugs per 100 kg feed for 5-7 days.

3. Usage of 750 grams of carbendazim: mixed feeding, mixed with 100 kg feed and fed freely for 2-3 days.

Prevention of colibacillosis in chickens

1. Choose good quality and healthy chicken seedlings, which is a basis to ensure less incidence of colibacillosis in the later stage. Some farmers choose cheap ones for the difference in the price of chicken seedlings. They do not know that they have lost watermelons and picked up sesame seeds, spending less money on chicken seedlings but spending more on medicine.

2. Escherichia coli is a conditional pathogen, so good feeding and management is the key to ensure less incidence of the disease. For example, temperature, humidity, ventilation and manure treatment are closely related to the occurrence of colibacillosis.

3. appropriate drug prophylaxis. Appropriate drug prevention is also an indispensable measure to prevent colibacillosis. The choice of drugs can be made according to the different ages of chickens and follow the advice of veterinary experts, and must not be abused. Because there is a difference between prophylactic and therapeutic use, avoid the occurrence of drug resistance as much as possible.