Estrous Intensity of Etawah Crossbreed Goat in Several Duration Implants of CIDR (Controlled Internal Drug Released)
Nurcholidah Solihati, Siti Darodjah Rasad, Muhammad Afif Fauzan

Faculty of Animal Husbandry, Universitas Padjadjaran, Bandung, Indonesia

Abstract

Estrous synchronization facilitate the management of livestock reproduction and increase reproductive efficiency. Controlled Internal Drug Released (CIDR) as a progesterone implant-intravaginal is expected to be effective methods, but the effective duration of implant was unclear. The aim of the research was to observe the intensity of estrus in several duration implants of CIDR. The research used an experimental method with completely randomized design (CRD) with 3 treatments of CIDR implant duration (T1 = CIDR implant for 10 days, T2 = CIDR implant for 12 days, T3 = CIDR implant for 14 days) with 10 replications. The parameters consist of intensity of estrous consist of behavior and the changes of vulva. The results showed that treatments had no significant effect on behavior, colour of vulva, and in the size of the vulva slit on day 1 and 2, but there were significant changes on day 3. Based on the results of the study, it can be concluded that the length of the CIDR implant for 10-14 days has the same effect on the intensity of estrus seen from behavior, colour of vulva, and size of vulva on day 1 and 2, but gave differences effect on changes in the size of the vulva slit on day 3.

Keywords: CIDR, estrous intensity, ewes, implant

Topic: Animal Genetics, Breeding and Livestock Production