Common diseases and prevention measures in poultry breeding

1. Chicken colibacillosis

Chicken colibacillosis is caused by Escherichia coli. It does not refer to a specific disease, but is a comprehensive name for a series of diseases. The main symptoms include: pericarditis, perihepatitis and other organ inflammation.

The preventive measures for chicken colibacillosis include: reducing the breeding density of chickens, regular disinfection, and ensuring the cleanliness of drinking water and feed. Drugs such as neomycin, gentamicin and furan are generally used to treat chicken colibacillosis. Adding such drugs when the chicks start eating can also play a certain preventive role.

2. Chicken infectious bronchitis

Chicken infectious bronchitis is caused by infectious bronchitis virus and is an acute and contagious respiratory disease. The main symptoms include: coughing, tracheal murmur, sneezing, etc.

The preventive measures for chicken infectious bronchitis include: immunizing chicks between 3 and 5 days old. The vaccine can be administered intranasally or double the dose of drinking water. When the chickens are 1 to 2 months old, the vaccine needs to be used again for double immunization. At present, there are no very effective drugs to treat chicken infectious bronchitis. Antibiotics can be used in the early stages of the disease to prevent the occurrence of infection.

3. Avian cholera

Avian cholera is caused by Pasteurella multocida and is an acute infectious disease that can infect chickens, ducks, geese and other poultry. The main symptoms are: severe diarrhea and sepsis (acute); beard edema and arthritis (chronic).

The preventive measures for avian cholera include: good feeding management and hygiene and epidemic prevention. Chicks aged 30 days can be immunized with inactivated avian cholera vaccine intramuscularly. For treatment, antibiotics, sulfa drugs, olaquindox and other drugs can be selected.

4. Infectious bursitis

Chicken infectious bursitis is caused by infectious bursitis virus. Once the disease develops and gets out of control, it will cause great harm to chicken farmers. The main symptoms are: drooping head, poor energy, fluffy feathers, closed eyelids, passing white or light green loose feces, and then death from exhaustion.

The preventive measures for chicken infectious bursitis include: strengthening the disinfection of chicken houses, supplying sufficient drinking water, and adding 5% sugar and 0.1% salt to the drinking water, which can improve the disease resistance of the chickens. Chicks aged 1 to 7 days are immunized once with drinking water using attenuated vaccine; chickens aged 24 days are vaccinated again.

5. Newcastle disease in chickens

Newcastle disease in chickens is caused by Newcastle disease virus, which is very harmful to my country’s chicken industry because the mortality rate of this disease is very high. The main symptoms include: laying hens stop producing eggs, poor energy, diarrhea, coughing, difficulty breathing, green feces, head and face swelling, etc.

The preventive measures for chicken Newcastle disease include: strengthening disinfection and isolating sick chickens in a timely manner; 3-day-old chicks are immunized with a new two-part vaccine through intranasal drip; 10-day-old chickens are immunized with a monoclonal vaccine in drinking water; 30-day-old chicks are immunized with drinking water; It is necessary to repeat the immunization once, and the 60-day-old chickens are injected with the i-series vaccine for immunization.

6. Chicken pullorum

Pullorum in chickens is caused by Salmonella. The main affected group is 2 to 3-week-old chicks. The main symptoms include: chicken wing flaps, messy chicken feathers, a tendency to crouch, loss of appetite, poor energy, and yellowish-white or green feces.

Preventive measures for chicken pullorum include: strengthening disinfection and isolating sick chickens in a timely manner; when introducing chicks, choose breeder farms that are free of pullorum; once the disease occurs, ciprofloxacin, norfloxacin or enrofloxacin should be used for drinking water in a timely manner treat.

Post time: Nov-17-2023