EFFECT OF LONG-TERM INGESTION OF CHROMIUM COMPOUNDS ON AGGRESSION, SEX BEHAVIOR AND FERTILITY IN ADULT MALE-RAT

The effects of long-term ingestion of chromium chloride (trivalent com pound) and potassium dichromate (hexavalent compound) was investigated on sexual bahavior, aggressive behavior and fertility in male rats. A dult male rats were exposed to chromium chloride and potassium dichrom ate in drinking water at a concentration of 1000 ppm for 12 weeks. The exposure of male rats to chromium chloride and potassium dichromate r educed the number of mounts. The exposure of male rats to potassium di chromate increased the time to ejaculation. On the other hand, the exp osure of male rats to chromium chloride and potassium dichromate incre ased the post ejaculatory interval. The number of animals ejaculating were reduced in chromium chloride and potassium dichromate exposed mal e rats. The exposure of male rats to chromium chloride and potassium d ichromate decreased lateralizations, boxing bouts and fights with stud male. The exposure of male rats to chromium chloride and potassium di chromate had no effect on fertility. Testes, seminal vesicle and prepu tial gland weights were significantly reduced in chromium chloride-and potassium dichromate - exposed males. In conclusion, the long-term in gestion of chromium chloride and potassium dichromate would have adver se effects on sexual behavior and territorial aggression in adult male rat.