Nuvolt Corporation Inc.

Observed Symptoms and Behaviors in Dairy Cows


Stray voltage stresses cows and affects their immune systems. Cows that are bothered by stray voltage often present some of the following readily observable symptoms


  • Twitching tail
  • Dancing cows
  • Kicking milker
  • Refusing to enter milk parlor or barn
  • Lapping water at the trough


  • High incidence of mastitis
  • High somatic cell count
  • Stagnation or reduction in production
  • Reduction in milk production
  • Problem detecting heat
  • High breeding rate
  • Longer milking time
  • Incomplete milkout
  • Poor body score
  • High cull rate

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