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Phosphorous Deficiency

Phosphorous is required for healthy bones and is linked to the amount of calcium in the diet.
The ratio of calcium to phosphorus affects the absorption of both so that an excess of one will reduce the absorption of the other.

Clinical Signs

Soft bones
Poor egg shell quality
Loss of egg production
Thin-shelled eggs
Shell-less eggs


  • History
  • Clinical signs
  • Physical exam
  • Diet analysis
  • Blood test


Supportive care: Isolate the bird from the flock and place in a safe, comfortable, warm location (your own chicken "intensive care unit") with easy access to water and food. Limit stress. Call your veterinarian.


Scientific References

Case Stories

Also Consider