Effects of atrazine on sexual maturation in female Japanese quail induced by photostimulation or exogenous gonadotropin.

摘要: The herbicide atrazine has gained recent attention for its reported effects on reproduction in amphibians. present study examined the putative of during sexual maturation photostimulated female Japanese quail. Furthermore, birds administered exogenous gonadotropin (pregnant mare serum [PMSG]) were investigated. Atrazine was up to 1,000 ppm diet quail undergoing photoperiodically induced maturation. At high dietary concentrations, exhibits signs overt toxicity with reductions growth, feed intake, and liver weights, but these dependent timing treatment administration. did not influence weights reproductive tissues (ovary oviduct) or circulating concentrations luteinizing hormone (LH). However, depressed estradiol. Treatment four weeks inhibited growth affect any other parameter assessed (feed liver, ovary, oviduct LH estradiol). In receiving daily injections PMSG, reduced weights. PMSG-induced gonadal affected by atrazine. results suggest that limited only at above ecological relevance.