MAJOR DISEASES OF POULTRY




    TYPES OF DISEASES AFFECTING POULTRY

      There are four major types of diseases affecting poultry.

  1.  Metabolic and Nutritional diseases
  2. Infectious diseases
  3. Parasitic diseases
  4. Behavioural diseases

 METABOLIC AND NUTRITIONAL DISEASES

   These are conditions caused by

  • Disturbance of normal metabolic functions either through a genetic defect
  • Inadequate or inappropriate nutrition or impaired nutrient utilisation.
   These conditions include
  1. Fatty Liver Syndrome
  2. Perosis (or slipped tendon)
  3. Rickets and Cage Layer Fatigue
INFECTIOUS DISEASES

  • An infectious disease is any disease caused by invasion of a host by a pathogen which subsequently grows and multiplies in the body.
  • Infectious diseases are often contagious, which means they can be spread directly or indirectly from one living thing to another.
  • These include Avian Encephalomyelitis, Avian Influenza, Avian Tuberculosis, Chicken Anaemia Virus Infection (or CAV), Chlamydiosis, Egg Drop Syndrome (or EDS), Fowl Cholera (or Pasteurellosis), Fowl Pox, Infectious Bronchitis, Infectious Bursal Disease (or Gumboro), Infectious Coryza, Infectious Laryngotracheitis, Lymphoid Leukosis, Marek’s Disease, Mycoplasmosis, Necrotic Enteritis, Newcastle Disease and Salmonellosis.
PARASITIC DISEASES

  • Parasitic diseases are infections or infestations with parasitic organisms.
  • They are often contracted through contact with an intermediate vector, but may occur as the result of direct exposure.
  • A parasite is an organism that lives in or on and takes its nourishment from another organism.
  •  A parasite cannot live independently.
  • These include Coccidiosis, Cryptosporidiosis, Histomoniasis, Lice and Mites, Parasitic Worms (or Helminths), Toxoplasmosis and Trichomoniasis.

BEHAVIOURAL DISEASES

  • Abnormal behavioural patterns can lead to injury or ill health of the abnormally behaving bird and/or its companions.
  • These include Cannibalism (or aggressive pecking)



LIST OF DISEASES CAUSED BY VIRUSES IN POULTRY

  1. Avian Influenza
  2. Avian Encephalomyelitis
  3. Big Liver and Spleen Disease
  4. Chicken Anaemia Virus Infection (or CAV)
  5. Egg drop syndrome (or EDS)
  6. Fowl Pox
  7. Inclusion Body Hepatitis (or Fowl adenovirus type 8 )
  8. Infectious Bronchitis
  9. Infectious Bursal Disease (or Gumboro)
  10. Infectious Laryngotracheitis
  11. Leucosis
  12. Lymphoid Leukosis
  13. Lympoid Tumour Disease (Reticuloendotheliosis)
  14. Marek’s Disease Virus or MDV
  15. Newcastle Disease
  16. Runting/stunting and malabsorption syndromes
  17. Viral Arthritis (Tenosynovitis)

 DISEASES CAUSED BY BACTERIA

  1. Botulism
  2. Colibacillosis
  3. Infectious Coryza
  4. Fowl Cholera (or pasteurellosis)
  5. Necrotic Enteritis
  6. Paratyphoid
  7. Pullorum
  8. Spirochaetosis (Avian Intestinal Spirochaetosis)
  9. Tuberculosis (Avian Tuberculosis

 DISEASES CAUSED BY PROTOZOA

  1. Coccidiosis
  2. Cryptosporidiosis
  3. Histomoniasis
  4. Toxoplasmosis
  5. Trichomoniasis

DISEASES CAUSED BY INTERNAL PARASITES

  1. Round worms
  2. Caecal worms
  3. Capillary worms
  4. Tape worms

DISEASES CAUSED BY EXTERNAL PARASITES

  1. Several types of louse (insect; plural – lice)
  2. Stickfast flea (insect)
  3. Fowl tick
  4. Several types of mite (acarid)

DISEASES CAUSED BY METABOLIC DISORDERS 

  1. Ascites (waterbelly)
  2.  Cage Layer Fatigue and Rickets
  3. Fatty Liver Haemorrhagic Syndrome

DISEASES CAUSED BY FUNGI

  1. Aspergillosis
  2. Favus
  3. Moniliasis (Candidiasis; crop mycosis).

DISEASE CAUSED BY ENVIRONMENTAL FACTORS

  1. Cannibalism (or aggressive pecking)

DISEASES CAUSED BY PESTS

  1. Darkling Beetles
DISEASES CAUSED BY CHLAMYDIA
  1. Chlamydiosis

DISEASES CAUSED BY MYCOPLASMAS

  1.  Mycoplasmosis – MG (Mycoplasma gallisepticum; MG infection; Chronic Respiratory Disease)
  2. Mycoplasmosis – MS (Mycoplasma synoviae; infectious synovitis


To read more about Poultry Diseases visit the Veterinary Blog.


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MAJOR DISEASES OF POULTRY MAJOR DISEASES OF POULTRY Reviewed by IMRAN ULLAH GONDAL on June 03, 2020 Rating: 5

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