This is a tree of variable size, which, according to growing and climatic conditions, can vary from 1.5 to 5 m in height. The fruits are globose yellow or red berries, tasty, with a diameter of about 1.5 cm. The plant is found in South and Southeast Brazil, Uruguay and Argentina.
HOW A CIDR WORKS. CIDRs are coated with progesterone. Progesterone is a naturally produced steroid hormone by the corpus luteum of mammalian ovaries. In vivo, progestrone functions to maintain pregnancy. Progesterone provides a potent suppression of estrus, making it important for estrus synchronization in herds of animals.
Controlled internal drug release devices are used in livestock for the synchronization of estrus. They are T-shaped devices with a silicone-coated nylon core. The silicone coating is impregnated with progesterone. CIDRs are inserted intra-vaginally using a specialized applicator. The flexible wings collapse for facilitated insertion and expand once placed appropriately within the vagina. The expansion of the wings retains its position; CIDRs have very high retention rates that may exceed 97%. A