Effects of long-term exposure to a 400-kV, 50-Hz transmission line on estrous and fertility in cows med./bio.

Exposure

• • 50/60 Hz
  • electric field
  • magnetic field
• • power transmission line

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• Rodriguez M et al. (2003): Responses of the estrous cycle in dairy cows exposed to electric and magnetic fields (60 Hz) during 8-h photoperiods
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• Burchard JF et al. (1998): Effects of electric and magnetic fields on nocturnal melatonin concentrations in dairy cows