Effects of extremely low frequency electromagnetic fields on testes in guinea pig

This study is carried out to measure the changes in testosterone hormone level and changes in testes tissue on 36 adult male Guinea pigs that divided to 6 groups. Group A as control group exposed to nil Electromagnetic Field (EMF) for two hours per day for 5 days duration, group B exposed to 0.013 microT in 5 Hz to the Same duration period, group C exposed to 0.207 microT in 50 Hz in similar conditions, group D exposed for 4 h day(-1) for 5 days in 0.013 microT, group E tested in 0.207 microT as group D, group F used as controlled group exposed for four hours per day in nil electromagnetic field. Guinea pig blood was tested after 5 days. Then data analyzed by t-test. The results indicated a significantly difference between control group and tested group of four and two hours, testosterone level decreased (p < 0.001), also testes tissues were sampled and observed main tissue changes in some treatments.