Diseases in Poultry Farming

Diseases in Poultry Chicken:

Diseases in Poultry
Diseases in Poultry

Prevention and Control Measures of Diseases in poultry farming:- In poultry industry primarily emphasis is given more on prevention and control than curative measures.

  • Make sure to start with disease free stock.
  • Should Vaccine chicks against Ranikhet & Merek’s disease at Hatchery.
  • Should use coccidiostal to prevent coccidiosis.
  • Should Keep feed free from aflatoxins.
  • Do not allow visitors or outsiders and attendants inside the poultry house unless they wear disinfected boots and clean clothing.
  • Should cover floor with clean litter with 3 inch depth.
  • All-in-one system of rearing chicks should be followed to ensure less disease problems.
  • Must provide foot bath provision at the shed entrance.
  • Must provide clean and fresh water daily.

A) Viral:

1) Ranikhet / New Castle Disease  and Symptoms: Below are the symptoms of the disease.

  1. Affects all the birds of the farm.
  2. Difficulty in breathing.
  3. Nasal discharge.
  4. Anorexia.
  5. Greenish diarrhea.
  6. 90-100% mortality.

Prevention measures: Should give early vaccination with F1 followed by R B vaccines.

2) Marek’s Disease and it’s Symptoms:

  1. Affects all the birds in the farm.
  2. Droopy wings, lameness, paralysis.
  3. Should expect 60 – 75% mortality of birds.

Preventive measures: No treatment, only early vaccination will help.

B) Bacterial Diseases:

a)  Salmonellisis and it’s Symptoms:

  • Chalky white diarrhoea.
  • Sudden death.
  • Pasted vent.
  • Affects all age groups.
  • Depression and loss of weight.

How to Treat this?

  • Should Use effective antibiotic (Better to contact nearest veterinary centre).
  • Recovered chicks act as a source of disease and thus better to cull.

b) Colybacillosis and it’s Symptoms:

  • Affects all age groups.
  • Diarrhoea.
  • Swelling of joints
  • Dizziness.
  • Oedematous comb and wattle.
  • Expect mortality rate up to 90%.

Treatment: Antimicrobials (Should contact nearest veterinary centre).

C) Fungal Diseases:

a) Brooder pneumonia / aspergillosis and it’s Symptoms:

  •  Affects chicks.
  •  High mortality.
  •  Respiratory problem.
  •  Swollen eye and head.

How to prevent it?. Use antifungal (Can contact nearest veterinary centre).

D) Helminthic Diseases and Symptoms:

  • This disease affects mostly layer birds.
  • Inappetance.
  • Causes in poor body growth.
  • Ruffled feather.
  • Causes diarrhea.

Treatment to prevent: Should use anthelmintic every 8 weeks (Should contact nearest veterinary centre).

E) Protozoan Diseases:-

a) Coccidiosis & Symptoms:

  • It causes bloody diarrhea.
  • It causes high mortality rate.


  • Proper management is necessary.
  • Should use anticoccidiosis ( should contact nearest veterinary centre).

 Vaccination in Broilers :- 

Disease Age of chicks
Marek’s  1st day (generally given in hatchery) 0.2ml s/c 
Ranikhet  5 day (f-strain) 
Gumboro / IBD  7  to 9 days 
Gumboro / IBD  16 to 18 days (Booster dose 
Ranikhet  30 days (f-strain) 

For Complete Poultry Farming Guide: Read here.

For Sheep and Goat Farming: Read here.