Poultry Diseasesphp

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Poultry diseases have a negative impact  on poultry production they can lead to either

  •  mortalities
  • Morbidity
  • Retarded growth
  • Reduced and lowered production
  • The high cost of production due to the purchase of birds or as a result of loss 

Disease refers to  any deviation from the normal functioning of the animal's body 

Below are some of few indicators of a healthy bird  any deviation from this is a disease or condition and therefore need for action from the farm point

  • Good  appetite and quite active 
  • Bright eyes
  • Clean and shiny Feathers 
  • Normal posture
  • Clear and open nostrils with no discharge 
  • Mouth closed when breathing except in hot condition
  • Wings carried close to the body

Poultry disease management is one of the factors a farmer needs to be equipped with as part of quick response action before consulting a vet . Its important to know that diseases are categorized into  major groups according to the causative agent 

Viral diseases _ viral diseases have no cure with high morbidity and mortalities, most of them are infectious and contagious they  include;

  • Newcastle disease
  • Mareks disease 
  • Fowlpox disease
  • Infectious  bronchitis 
  • Gumboro  diseases
  • Bacterial diseases-bacterial pathogens are common in most environments but thrive when exposed to some predisposing factors ie moist, contaminated feed, water and surfaces.they include ;
  • infectious coryza
  • fowl cholera
  • fowl typhoid
  • colibacillosis
  • Bumblefoot
  • Mycoplasmosis

protozoan diseases-these are diseases caused by  protozoan parasites which multiply in the intestinal lining  they can cause diseases; clinical coccidiosis with signs  or subclinical   without common symptoms ;

Coccidiosis is the common protozoan disease in poultry production

Fungal infections  Diseases caused by the fungus eg Aspergillosis, Candidiasis, Histoplasmosis

Nutritional or  metabolic conditions in poultry  they arise as a result of a deficiency in mineral elements in the feed

 Consulting with poultry experts before administering any drug or vaccine 


Newcastle disease


Twisted neck 'paralysis, difficulty in breathing, greenish diarrhea vaccination;6 days,28day& every 2months None

Infectious bronchitis[Viral]

  • Respiratory problems, Nasal discharge, a large decrease in egg production
Vaccination at 3-4months


Antibiotics to control  secondary infections

Fowl cholera/


Blue combs and watts, severe diarrhea, reduction in feeds intake Annual vaccination at 9 weeks

Remove, slaughter and destroy infected birds then strict hygiene


scabs on the combs, wattle, eyelids



 wing web vaccination at 6 weeks' isolation none
Marek and Leukosis Affects birds 20-30 weeks old' leg paralysis' death of 10-30% of the flock done at the hatchery, isolation none
Gumboro disease(infectious bursae ) Prostration of birds 'droopy and sleepy, vent pecking, collapse and die, hemorrhages in muscles, mucoid diarrhea with soiled vent feathers Isolation, Vaccination at day 14and 21 via drinking water none 
Coccidiosis watery and bloody diarrhea, high mortalities, Quarantine the young from adults, use coccidiostats in feeds, maintain hygiene use sulfur-based drugs or pyrimidine in drinking  water
Pullorum disease( bacillary white diarrhea) high death rate ' white diarrhea blood test adults to remove carriers, strict hygiene, avoid stress sulfur-based drugs 



N/B Consult a vet before administering drugs