Veterinary Reviewed
Avian Pathology & Poultry Disease Atlas [2026 Directory]
Comprehensive clinical diagnostic directory covering 29 viral, bacterial, protozoal, and metabolic poultry pathogens with post-mortem lesions and treatment manuals.
Scientific Overview
Commercial poultry production systems are highly vulnerable to infectious pathogens. Early triage through gross post-mortem lesions and symptom audits is vital to prevent flock loss. This Atlas compiles peer-reviewed clinical signs, necropsy lesion directories, and treatment protocols across 29 primary avian diseases compliant with WOAH (World Organisation for Animal Health) guidelines.
Master Pathology Directory: 29 Vet-Reviewed Disease Manuals
Select any disease below to access its dedicated veterinary manual, histopathology, gross lesion profiles, differential diagnoses, and dosage calculators:
coronavirus 🦠 Viral Pathogens Atlas (11 Diseases)
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Fowl Pox Virus (Avipoxvirus)Manual →
Dry cutaneous scabs & wet diphtheritic membranes -
Infectious Laryngotracheitis (ILTV)Manual →
Bloody tracheal casts & intranuclear inclusions -
Avian Leukosis Virus (ALV)Manual →
Retroviral Subgroups A-J, Bursa nodules & tumors -
Avian Reovirus (ARV)Manual →
Viral arthritis, tendon rupture & stunting syndrome -
Chicken Infectious Anemia (CIAV)Manual →
Gyrovirus bone marrow aplasia & Blue Wing Disease -
Avian Encephalomyelitis (AEV)Manual →
Epidemic tremors, chick cataracts & layer egg drops -
Newcastle Disease Virus (APMV-1)Manual →
Velogenic viscerotropic lesions & proventriculus spots -
Marek's Disease Virus (MDV)Manual →
Sciatic nerve paralysis, grey eye & visceral tumors -
Avian Influenza (HPAI H5N1)Manual →
Cyanotic comb edema, epicardial petechiae & high mortality -
Gumboro / Infectious Bursal DiseaseManual →
Bursa of Fabricius edema, atrophy & immunosuppression -
Swollen Head Syndrome (aMPV)Manual →
Periorbital swelling & secondary bacterial tracheitis
biotech 🧫 Bacterial Pathogens Atlas (11 Diseases)
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Avian Colibacillosis (APEC E. coli)Manual →
CoIV plasmid, perihepatitis, pericarditis & airsacculitis -
Infectious Coryza (Avibacterium)Manual →
Page Serogroups A-C, facial swelling & foul catarrh -
Fowl Cholera (Pasteurella multocida)Manual →
Acute septicemia, liver necrosis & swollen wattles -
Necrotic Enteritis (C. perfringens)Manual →
netB toxin, 'Turkish towel' jejunal pseudomembrane -
Ulcerative Enteritis (Quail Disease)Manual →
Clostridium colinum button ulcers in ceca & liver necrosis -
Fowl Spirochetosis (Borrelia anserina)Manual →
Soft tick vector (Argas persicus), high fever & 6x spleen -
Avian Chlamydiosis / PsittacosisManual →
Chlamydia psittaci elementary bodies & zoonotic risk -
Avian Tuberculosis (Mycobacterium)Manual →
Acid-fast mycolic acid cell wall & visceral granulomas -
Riemerella anatipestifer InfectionManual →
Duck septicemia, head tremors & butter-like pericarditis -
Gallibacterium anatis InfectionManual →
GtxA leukotoxin, salpingitis & layer drop complex -
Salmonellosis (S. Enteritidis / Gallinarum)Manual →
Pullorum disease, fowl typhoid & systemic salmonella -
Pullorum Disease (S. pullorum)Manual →
Bacillary white diarrhea, unabsorbed yolk & NPIP testing -
Fowl Typhoid (Salmonella gallinarum)Manual →
Bronze metallic liver sheen & acute adult layer mortality -
Infectious Synovitis (Mycoplasma synoviae)Manual →
Hock joint exudate, breast blisters & MS-H eye-drop vaccine -
Bumblefoot (Pododermatitis)Manual →
Staphylococcal plantar abscess, black scab & core debridement -
Omphalitis (Navel Ill / Yolk Infection)Manual →
Unclosed navel, mushy chick mortality peak & hatchery hygiene
bug_report 🍄 Protozoal & Fungal Pathology (2 Diseases)
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Avian Coccidiosis (Eimeria spp.)Manual →
E. tenella, acervulina, necatrix lesions & OPG counts -
Aspergillosis (Brooder Pneumonia)Manual →
Aspergillus fumigatus, yellow pulmonary plaques -
Blackhead Disease (Histomoniasis)Manual →
Heterakis gallinarum vector, bullseye liver & cecal cores -
Air Sac Mites (Cytodites nudus)Manual →
Tracheal rales, respiratory dyspnea & Ivermectin control
warning ⚠️ Metabolic & Production Disorders (5 Conditions)
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Egg Drop Syndrome (EDS '76)Manual →
Duck Atadenovirus, soft shell eggs & loss of pigment -
Infectious Bronchitis (IBV)Manual →
Coronaviridae tracheal rales & swollen kidney lesions -
Mycoplasmosis (MG & MS)Manual →
Mycoplasma gallisepticum airsacculitis & synovitis -
Chicken Leg Weakness & LamenessManual →
TD, rickets, femoral head necrosis & valgus deformity -
Heat Stress in PoultryManual →
Panting, respiratory alkalosis & evaporative cooling -
Fatty Liver Hemorrhagic Syndrome (FLHS)Manual →
Hepatic lipidosis, fatal subcapsular hematoma & choline
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Avian Pathology & Poultry Disease Atlas [2026 Directory] — Frequently Asked Questions
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