Bacterial diseases

BACTERIAL DISEASES

Coli-bacillosis

  • This is a common bacterial disease caused by E. coli organism.
  • It can manifest in different forms such as infection of the yolk sac, colisepticaemia, etc. Lethargy and diarrhoea will be noticed.
  • Control of infection of the yolk sac depends on sanitary conditions at the hatchery and provision of appropriate warmth during brooding.
  • The practice of efficient water sanitation methods and the use of clean drinkers are strongly advised.
  • Provide adequate ventilation and manage the litter properly.

Salmonellosis

  • This disease is transmitted vertically from parent flocks and affects baby chicks with a high mortality.
  • Huddling, pasting of vent feathers and whitish diarrhoea are noticed.
  • Ensure Salmonella-free chicks from the hatchery by using sterilised fish-meal and meat meal.
  • Pelleting of the feed will also be helpful. Add furazolidone to the feed to control Salmonellosis.

Coryza

  • Symptoms of this disease are swollen faces and swollen eyes, filled with a cheesy substance.
  • Respiratory distress and poor feed intake are also noticeable.
  • Avoid overcrowding and wet litter. Reduce the ammonia level by proper ventilation.

Fowl Cholera

  • Combs and wattles of poultry with this condition become swollen and bluish.
  • High mortality and morbidity are experienced along with a watery nasal discharge and saliva dripping.
  • Pin-point blood spots on the heart and duodenum and white spots on the liver are present.
  • Whitish diarrhoea is noticed. Control rodents and ensure proper management.
  • Provide good ventilation and stress-free conditions.

Chronic Respiratory Disease (CRD)

  • Respiratory distress, the sound of rales, sneezing, poor weight gain and nasal discharge are symptoms of the disease.
  • Infected chicks transmit the disease through water and feed.
  • Avoid over crowding, improve ventilation, ensure hatchery sanitation and screening of parent stock.
  • Mixing tiamutin or tylosine in the feed will be helpful.
Last modified: Sunday, 3 June 2012, 6:47 AM