Observations on the female reproductive cycle of captive giant tortoises (Geochelone spp.) using ultrasound scanning

The reproductive activities of one adult female Galapagos tortoise (Geochelone nigra) and three adult female Aldabra trotoises (Geochelone gigantea) were monitored over 2 yrs using ultrasound scanning. A nonrestraining technique o tactile stimulation was used for all examinations. Developing, preovulatory, and atretic ovarian follicles, as well as eggs at various stages of shell deposition, were […]