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Within 1-3 weeks after birth, a mother dog can have such excess demands on the calcium demands, due to nursing needs.  While the underlying causes are not clear, the parathyroid does not demand enough calcium from the bones leading to a lack of calcium in the blood.  This leads to contractions of the skeletal muscles.  The mechanisms that occur are not well understood but this mostly happens to toy breeds during first or large litters.  Symptoms can include:

  • Poor Maternal Behavior
  • Panting
  • Drooling
  • Whining
  • Restless Pacing
  • Facial Itching
  • Disorientation
  • Muscle Tremors
  • Entire Body Going Stiff
  • Laying with Paws Rigidly Extended
  • Fever
  • Dilated Pupils
  • Convulsions
  • Rapid Breathing
  • Heart Issues
  • Seizures
  • Coma
  • Death