Electrocution

ELECTROCUTION

  • Common causes are
    • Defective electric circuits in cow sheds.
    • Electric pole or water lines may be electrified due to a short circuit.
    • Transmission lines may break and fall on the animals.
    • Fallen transmission wires may electrify a pool of water and animals passing through it may be killed instantly.
    • Animals may chew the electric-cord and receive an electric shock.

Effect of electrocution on the body

  • The clinical symptoms due to electrocution depend upon
    • The strength of the current
    • The efficiency of the contact and earth and
    • The length of exposure and the area in contact.
  • Death by electrocution occurs due to
    • Ventricular fibrillation
    • Cardiac arrest
    • Respiratory failure.
  • Clinical symptoms of electrocution
    • Minor 
      • Animal will  be restless, nervous and may kicking.
      • Animal which have received intermittent shock, may eat and drink with care.
    • Less severe
      • Animal becomes unconscious and may recover completely after a few minutes.
      • Some animals may show nervous symptoms such as depression, paraplegia.
      • These symptoms may persist or disappear gradually.
    • Severe
      • Animals may fall dead without struggle in most instances.
      • Singeing and burning marks occurs in most of the cases of lightning.
      • Hairs have a brownish discolouration and abnormal kinking.
      • Half-chewed food in the mouth is a significant finding in the case of a lightning stroke.
      • Varying degrees of shock may occur.
  • Postmortem changes in electrocution
    • Circulatory system
      • Bloody discharge from all natural orifices.
      • Blood is dark and tends to clot slowly.
      • Petechial haemorrhages throughout the body, endocardium, meninges and CNS.
    • Skin & Musulo skeletal system
      • Extravasation of blood in muscles and superficial lymphnodes.
      • Longitudinal fractures of long ones.
      • Singeing or burning marks on the feet or muzzle.
    • Gastro Intestinal tracts
      • Distended rumen and swollen carcass.
    • Respiratory system 
      • Congested upper respiratory tract mucosal.
    • Rigor mortis - Rigor mortis develops and passes quickly early putrefaction
Last modified: Tuesday, 5 June 2012, 9:57 AM