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COMMON PROBLEMS, POSSIBLE CAUSES AND ACTIONS TO BE TAKING IN POULTRY PRODUCTION

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 A. POOR EARLY GROWTH AND LACK OF UNIFORMITY

Weak pullets



CAUSES
1 - Nutrition
2 - Environmental conditions
3 - Appetite
4 - Disease

ACTIONS
1 - Check starter ration (availability, nutritional and physical quality), Check water supply (availability and quality)
2 - Check temperature and humidity profiles, Check day-length, Check air quality (C02, dust, minimum ventilation rate)
3 - Check poor stimulation of appetite (low proportion of birds with full crops)
4 - Post-mortem on dead chicks, take veterinary advice


Healthy broilers at 5weeks

B. POOR LATE GROWTH AND UNIFORMITY
Un-uniform growth in 5wks broilers
 

CAUSES
1 - Low nutrient intake
2 - Infectious disease
3 - Environmental conditions

ACTIONS
1 - Check feed nutritional and physical quality and formulation, Check feed intake and accessibility, Excessive early restriction, Lighting program too restrictive
2 - Establish cause (post mortem), take veterinary advice
3 - Check ventilation rates, Check stocking density, Check house temperatures, Check water and feed availability, Check feeder and drinker space

C. HIGH EARLY MORTALITY (greater than 1% in the first week)

Poor growth from week one

CAUSES
1 - Incorrect brooding
2 - Disease
3 - Appetite

ACTION
1 - Re-adjust brooders
2 - Establish cause (post mortem), take veterinary advice
3 - Measure and achieve target crop fill levels, check feed availability (amount & space)

D. HIGH MORTALITY (after 7 days)

Mortality up to 10% at week7

CAUSES
1 - Metabolic disease (ascites, sudden death syndrome)
2 - Infectious diseases
3 - Leg problem

ACTION
1 - Check ventilation rates, check feed formulation, avoid excessive early growth rates
2 - Establish cause (post-mortem), take veterinary advice
3 - Check water consumption, Check calcium, phosphorous, and vitamin D levels in the diet, Use light programs to increase bird activity

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