COW’S SENSITIVENESS TO ELECTRIC CURRENT
Studies have evaluated the average resistance of a cow to current flow at about 500 ohms against more than 1000 ohms for humans.
The disorders observed in animals are directly dependent on the intensity of the current passing through them. From the threshold of 1 milliamp (0.5 volts), there is perception, with a possible stress, without a decline in production.
Dairy cows were subjected to different current intensities. Their reactions have been studied and their influence on milk production has been analyzed. As shown in the table (click here to view the table), no production decline was observed up to 6 milliamps.
OBSERVABLE STRESS SYMPTOMS ON THE COW
Warning Signs: Nervousness, hesitation (refusal to enter or leave milking station) and extended milking period.
External Signs: Clinical mastitis
Consequences: Number of somatic cells elevated in milk and chronic mastitis
PRESENCE OF PARASITIC CURRENT IN THE OPERATION
Electrical and magnetic phenomena are inseparable components of the environment in which we live. Some are natural, such as telluric currents circulating in the ground, the Earth's magnetic field, the atmospheric electric field with its most spectacular manifestation during thunderstorms: lightning. Others originate from the domestication and use of electricity, particularly in livestock farming. In dairy farms, the milking building includes areas where many electrical, electronic and computer equipment coexist (milking machines, milk tanks, etc.). In addition, electric fences, the electrical distribution network, radio relay telecommunications are all systems that induce signals with low to high energy.