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Organophosphate Poisoning

Organophosphates (OP) are commonly found in many pesticides used for lawn and crop or garden pest control. It is a cholinesterase inhibitor, which affects the chicken's peripheral and central nervous system, resulting in hyperstimulation of the parasympathetic nervous system. Clinical signs that develop can be muscarinic, nicotinic, or central.

Clinical Signs

Diarrhea
Crop stasis
Difficulty breathing
Ataxia
Tremors
Lethargy

Diagnosis

  • History of exposure
  • Clinical signs
  • Organophosphate/Carbamate toxicology
  • Necropsy

Treatment

NameSummary
Supportive careIsolate 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.
Atropine sulfateThe standard antidote usually combined with oximes for the treatment of OP poisoning

Support

Prevention

Phenhydramine has been reported to have protective and antagonistic effects against OP poisoning.

Scientific References

Also Consider

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