Complete Guide to Common Chicken Diseases

Table of Contents

Recognizing and treating chicken diseases early can save your flock's life and prevent costly losses. This comprehensive guide covers the most common diseases affecting backyard chickens, from mild respiratory infections to serious reproductive problems.

⚠️ When to Call a Veterinarian Immediately

Sudden death in multiple birdsSevere respiratory distressInability to stand or walkBloody diarrheaComplete loss of appetite for 24+ hoursSevere swelling of head or neck

Emergency Warning Signs

Immediate Action Required

Urgent Care (Within 24 Hours)

Respiratory Diseases

Infectious Bronchitis

Newcastle Disease

Mycoplasma (CRD - Chronic Respiratory Disease)

Digestive Issues

Coccidiosis

Internal Parasites (Worms)

Roundworms (Ascardia)

Cecal Worms

Crop Issues

Crop Impaction

Sour Crop

External Parasites

Red Mites (Poultry Mites)

Northern Fowl Mites

Scaly Leg Mites

Lice

Reproductive Problems

Egg Binding

Prolapsed Vent

Egg Yolk Peritonitis

Neurological Disorders

Marek's Disease

Avian Encephalomyelitis (Epidemic Tremor)

Treatment Guidelines

Treatment Principles

Isolate sick birds immediatelyMaintain accurate recordsComplete full treatment coursesObserve withdrawal periodsMonitor for improvement daily

Antibiotic Guidelines

Supportive Care

Prevention Strategies

Biosecurity Essentials

Environmental Management

Nutritional Prevention

Essential First Aid Kit

Medications and Treatments

Equipment and Supplies

Emergency Contact Information

Record Keeping

Maintain detailed health records including: dates of illness, symptoms observed, treatments given, dosages and duration, bird identification, and outcomes. This information is invaluable for veterinary consultations and tracking patterns in your flock.

Early detection and proper treatment are the keys to maintaining a healthy flock. Regular observation, preventive care, and quick action when problems arise will help ensure your chickens live long, productive lives. Remember that while this guide covers common conditions, professional veterinary advice should always be sought for serious illnesses or when you're unsure about treatment.

Related Resources

Learn more about maintaining flock health with our guides on vitamins and supplements, building a first aid kit, and proper nutrition. For product recommendations, see our health product reviews.