Use of levonorgestrel as an effective means of contraception in the white-faced saki (Pithecia pithecia)

Abstract 10.1002/zoo.10006.abs This study examines the use levonorgestrel (Norplant®-2) as a means of contracepting white-faced sakis (Pithecia pithecia). A 70-mg silastic tubule of levonorgestrel was implanted subdermally between the scapulae in four multiparous and two nulliparous females. Implants remained in the females housed with males of proven fertility for 81 to 734 days. All females […]