Abstract
To determine effects of low intensity magnetic fields on biological processes, reproduction studies were made with CFW strain mice. Pairs of mice were exposed to static magnetic fields of intensities of 300 Oe and 800 Oe from the beginning of mating to the end of weaning. The offspring were kept until eight weeks old in the fields, but succeeding generations were all mated free of the fields. In the 800 Oe magnetic field the gestation period, the rate and number of live births, birth weight and growth were all retarded in comparison to the controls. In the 300 Oe field live births, birth weight, and growth were slightly depressed. Residual effects lasted for three generations especially for 800 Oe series.
These results were related to safety standards for continuous whole body exposure to magnetic fields.
