Rigor mortis


  • Sets in
  • 2-3 hrs after death in hot climates
  • Relaxation occurs after 12 hrs
  • Duration doubled in cases of winter climate.
  • Delayed in
    • Well fed, well rested animal.
  • Quick setting in
  • Death due to heat stroke, racing animals, high environment temperature, weak emaciated animal due to tetanus.

Rigor mortis

  • 1st stage: Acidic muscles (relaxation with Contractibility).
  • 2nd stage: Complete rigidity.
  • 3rd stage: Alkaline (Flaccidity with contractibility).

Setting of Rigor mortis

  • From head, forelimbs (quarter) and hind limbs (quarter) and tail.
Last modified: Tuesday, 5 June 2012, 9:42 AM