25 Stress conditions (moving birds, debeaking, cold or poor ventilation) increases the susceptibility of birds. Mortality is usually low and economic losses are due to reduced body weight and poor feed conversion. CAUSE CRD is due to Mycoplasma gallisepticum and the condition is frequently triggered by respiratory viruses (IBV and NDV) and bacteria that have an affinity for the respiratory tract. Other factors such as nutritional deficiency, high ammonia level and dust contribute to the severity of the disease. SIGNS • Respiratory distress, coughing and sneezing • Snicks, rales, sometimes with eye and nasal discharge • Decreased feed intake, body weight and poor feed conversion TREATMENT Menorox® and Neo-Oxytetracycline.
PREVENTION • Good management and sanitation must be the daily practice in the event of infection • Avoid high ammonia levels, dust, overcrowding, and poor ventilation • Remove infected flocks; then clean, disinfect and rest house for 3-4 weeks before restocking COLIBACILLOSIS OR COLISEPTICEMIA
Coli-septicaemia is an infectious disease of farmed poultry. It is most commonly seen following upper respiratory disease. Caused by the bacterium Escherichia coli, it is seen worldwide in chickens and turkeys. SIGNS • Respiratory distress, coughing, sneezing • Snick • Dejection • Reduced appetite • Poor growth