This document summarizes several poultry diseases, including their causative organisms, symptoms, treatment, prevention, and transmission. Some of the major diseases discussed are infectious coryza caused by Haemophilus paragalinarum which affects the respiratory system; fowl cholera caused by Pasteurella multocida with purplish discoloration of combs and wattles; and salmonella pullorum which causes white diarrhea. Prevention methods discussed include vaccination, biosecurity measures, antibiotic therapy, and purchasing infection-free chicks.

1. Dr. P. Ravikanth Reddy
MVSc, PhD
Guest Faculty
KBR College of Agriculture and Horticulture
Acharya NG Ranga Agricultural University
Dr. YSR Horticulture University

3.  Causative organism – Haemophilus paragalinarum
 Symptoms – Respiratory system affected – Swelling
around the face, foul smelling, thick and sticky discharge
from the nostrils and eyes, labored breathing and rales.
 Treatment and Prevention – Vaccination, biosecurity
measures, Antibiotic therapy.
 Transmission – Bird to bird contact or air borne.
INFECTIOUS CORYZA

4. Swelling around the eye - INFECTIOUS CORYZA

5.  Causative organism – Pasteurella multocida
 Symptoms – Secretions from mouth, eyes, and nostrils,
purplish discolouration of combs and wattles.
 Treatment and Prevention – Vaccination, biosecurity
measures, Antibiotic therapy.
 Transmission – Bird to bird contact or air borne.
FOWL CHOLERA

6. Purplish discoloration of combs and wattles – FOWL CHOLERA

7.  Causative organism – Escherichia coli
 Symptoms – In young birds. High mortality, respiratory
distress, and diarrhea.
 Treatment and Prevention – Purchase of infection free
chicks from hatcheries, Antibiotic therapy.
 Transmission – Bird to bird contact or air borne.
MUSHY CHICK DISEASE

8. MUSHY CHICK DISEASE

9.  Causative organism – Clostridium perfringes
 Symptoms – Diarrhea
 Treatment and Prevention – Vaccination, biosecurity
measures, Antibiotic therapy.
 Transmission – Bird to bird contact or air borne.
NECROTIC ENTERITIS

11.  Causative organism – Salmonella pullorum
 Symptoms – White diarrhea with white pasted vents.
 Treatment and Prevention – Purchasing good chicks,
Antibiotic therapy.
 Transmission – Infection from hatchery origin.
SALMONELLA PULLORUM (or) BACILLARY WHITE
DIARRHEA

12. SALMONELLA PULLORUM (or) BACILLARY WHITE DIARRHEA

13.  Causative organism – Salmonella gallinarum
 Symptoms – Inappetance, anorexia, diarrhoea, chirping
sounds by birds.
 Treatment and Prevention – Purchase of infection free
chicks from hatcheries, Good sanitation, Antibiotic
therapy.
 Transmission – Bird to bird contact or air borne.
FOWL TYPHOID

14. FOWL TYPHOID

16.  Symptoms – Respiratory and Nervous system affected –
Sneezing, gasping, and drooping.
 Treatment and Prevention – Vaccination, biosecurity
measures, Antibiotic therapy to prevent secondary
bacterial infection.
 Vaccines – F1, B1, Lasota, R2B, Mukteswar
 Transmission – Bird to bird contact or air borne.
NEWCASTLE DISEASE/RANIKHET DISESASE

17. NEWCASTLE DISEASE/RANIKHET DISESASE

18.  Symptoms – Respiratory system and Reproductive
systems are affected – Labored breathing, gasping, and
breathing noises are noticed. Misshapened or rough eggs.
 Treatment and Prevention – Vaccination, biosecurity
measures, Antibiotic therapy.
 Transmission – Bird to bird contact or air borne.
INFECTIOUS BRONCHITIS

19. INFECTIOUS BRONCHITIS

20.  Symptoms – Dry form – Warts on unfeathered areas.
Wet form – Affect trachea. Only known in postmortem.
 Treatment and Prevention – Vaccination, biosecurity
measures, Antibiotic therapy to prevent sec. bact. Inf.
Mosquito control.
 Transmission – Bird to bird contact or air borne.
FOWL POX

21. FOWL POX

22.  Symptoms – Respiratory system will be affected. In
pathogenic forms – 100% mortality.
 Treatment and Prevention – Vaccination, biosecurity
measures, Antibiotic therapy to prevent sec. bact. Inf.
Vector control.
 Transmission – Bird to bird contact or air borne.
 Mutation to Humans
AVIAN INFLUENZA (BIRD FLU)

23. AVIAN INFLUENZA (BIRD FLU)

24.  Symptoms – A type of Avian cancer. Tumors in nerves
cause lameness and paralysis. Bird is unable to raise the
wings and leg paralysis.
 Treatment and Prevention – Vaccination, biosecurity
measures, Antibiotic therapy to prevent sec. bact. Inf.
Vector control.
 Transmission – Bird to bird contact or air borne.
MAREKS DISEASE

25. MAREKS DISEASE

26.  Symptoms – Affects bursa of fabricus (Organ of
immunity). Pasty vents may be seen.
 Treatment and Prevention – Vaccination, biosecurity
measures, Antibiotic therapy to prevent sec. bact. Inf.
Vector control.
 Transmission – Bird to bird contact or air borne.
INFECTIOUS BURSAL DISEASE (IBD, GUMBORO)

27. INFECTIOUS BURSAL DISEASE (IBD, GUMBORO)

29.  Symptoms – Bloody diarrhea, lethargy, and ruffled
feathers.
 Treatment and Prevention – Dry litter can be maintained
by raking and adding lime. Add coccidiostats in the feed.
 Amprolium, sulfonamides, Vitamin K.
 Transmission – Ingestion of oocysts from litter material.
COCCIDIOSIS

30. COCCIDIOSIS

32.  Ascaris gallinarum and Heterakis gallinarum
 Deep litter system birds are more prone for this.
 Periodical deworming.
ROUND WORMS

33.  Control of intermediate hosts is the best prevention.
TAPE WORMS
 Lice, fleas, ticks, and mites.
 Irritation, itching, feather loss to the bird.
 Spraying insecticides.
EXTERNAL PARASITES