The Visual Guide to
Ovine Reproduction
Reproductive Management: Cycle Control
CIDR and Applicator.
The small silastic T-shaped Controlled Internal Drug Release (CIDR) device is permeated with progestin. The flexible horizontal arms of the device can be folded together as an extension of the shaft and then inserted into the cylindrical portion of the applicator for insertion into the vagina of the ewe. The curved string at the end of the shaft is left sticking out of the vulva for ease of removal of the device.
Smith MC (2006)
CIDR Devices.
The Controlled Internal Drug Release devices are impregnated with progestin (0.3 g progesterone). The device is inserted into the vagina with a special applicator.
Smith MC (2006)
Cow versus Ewe Devices.
A. is a large CIDR device for use in cows; B. and C. are small CIDR devices for use in small ruminants, with their respective applicators. (CIDR = Controlled Internal Drug Release).
Drost M (2006)