Endocrine Abstracts

Gerbil (Meriones unguiculatus) a non traditional laboratory model with reproductive state influenced by photoperiod, was used to analyze those photoperiodic mechanisms involving reproductive regulation. The 14:10 photoperiod has been widely used for reproductive research since 1950 (Everett). As is well known gerbils locomotor activity cycle has been reported to be crepuscular and reproductive cycle presents two annual peaks. As for the estrous cycle (EC), it has been...