The regional basic diet consumed by the population of Brazil is deficient in protein, lipids, vitamins, sodium and other minerals. Female rats received one of the follwing diets during pregnancy: 1) casein, 2) casein and electromagnetic field, 3) regional basic diet, 4) regional basic diet and electromagnetic field. After the rats gave birth, the somatic maturation of the male offspring (n=66) was examined.
Exposure duration: 2 h/day for 21 days; 1 h in the morning and 1 h in the afternoon
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The offspring from rats exposed to electromagnetic fields and regional basic diet, presented a delay in all somatic maturation indexes. Offspring from exposed rats fed casein showed delay in the auricle opening, auditory canal opening and lower incisor eruption. The regional basic diet caused lower body weight in the offspring at the first and third day of life. Electromagnetic field exposure caused a decrease in the mean weight in the offspring of rats fed casein compared to non-exposed rats at day 3 and 6.
Exposure to electromagentic field and under-nutrition can cause a delay in somatic maturity and a decrease in body weight at the sixth day of life.