Secretory function of ovarian cells and myometrial contractions in cow are affected by chlorinated insecticides (chlordane, heptachlor, mirex) in vitro
The studied insecticides affected steroids and oxytocin secretion from ovaries. Mirex stimulated bovine myometrial contractions. Heptachlor inhibited bovine myometrial contractions. Prostaglandins are not involved in adverse effect of the insecticides on uterine contractions.