Colibacillosis is a bacterial infection caused by pathogenic strains of Escherichia coli (E. coli). It’s one of the most significant bacterial diseases affecting poultry, causing substantial economic losses in the industry.
SYMPTOMS
CAUSES
PREVENTION
TREATMENT
Symptoms
- General Symptoms (All Poultry):
- Depression
- Reduced feed intake
- Respiratory distress
- Diarrhea
- Decreased growth rate
- Chickens:
- Yolk sac infections in chicks
- Swollen head syndrome
- Air sacculitis
- Peritonitis in layers
- Reduced egg production
- Turkeys:
- Severe respiratory signs
- Joint infections
- Higher mortality rates
- Cellulitis
- Waterfowl:
- Generally more resistant
- Mild respiratory signs
- Occasional septicemia
Causes and modes of transmission
- Primary Causes:
- Pathogenic E. coli strains
- Poor sanitation
- Stress factors
- Immunosuppression
- Secondary infections
- Transmission Routes:
- Fecal-oral transmission
- Contaminated water/feed
- Airborne particles
- Egg transmission
- Environmental contamination
Prevention strategies
- Management:
- Strict biosecurity measures
- Regular cleaning/disinfection
- Proper ventilation
- Stress reduction
- Clean water supply
Treatment options
- Antimicrobial Therapy:
- Targeted antibiotics based on sensitivity
- Early intervention crucial
- Complete prescribed course
- Supportive Care:
- Electrolyte supplementation
- Probiotic supplementation
- Vitamin support
- Temperature management
- Isolation of affected birds
Conclusion: Treatment success depends on early detection and appropriate antibiotic selection. Prevention is more effective than treatment.
