Abstract
Currently, the information about Javan langurs female reproductive cycle in both cycle length and hormonal patterns is still widely unknown. Meanwhile, this information can be used as a guide in determining the fertile period of Javan langurs to conduct mating with higher pregnancy rate. The purpose of this study was to determine the reproductive cycle of adult female Javan langurs based on estrogen and luteinizing hormone (LH) levels. The experimental animals was originated from Coban Talun forest in Batu, which was undergoing a rehabilitation program. Feces samples of two female Javan langurs were taken for 40 days. Examination of estrogen and LH hormone levels in the feces was carried out by the enzyme-linked immunosorbent assay (ELISA) method and then analyzed descriptively. The results showed that fluctuations in the graphs of the hormones estrogen and LH appeared on days 8 to 16 and days 30 to 40 which showed the existence of two reproductive cycles. Whereas younger langur showed a pattern of hormonal fluctuations that are less regular, making identification of the reproductive cycle difficult. Based from the results, we concluded that the reproductive cycle of female Javan langur was estimated about 24 days with a hormonal pattern consisting of the follicular phase, the ovulation period and the luteal phase.
Highlights
ABSTRAK Sejauh ini, informasi mengenai siklus reproduksi lutung jawa betina, baik lama siklus maupun pola hormonalnya masih belum banyak diketahui
The purpose of this study was to determine the reproductive cycle of adult female Javan langurs based on estrogen and luteinizing hormone (LH) levels
Feces samples of two female Javan langurs were taken for 40 days
Summary
PENDAHULUAN Pemerintah menetapkan berbagai cara untuk mencegah ancaman kepunahan biodiversitas hayati yang dimiliki Indonesia. Salah satu pusat rehabilitas satwa yang berada di Kota Batu, Jawa Timur yaitu Javan Langur Center (JLC), fokus merehabilitasi lutung jawa agar siap dilepasliarkan ke hutan lindung. Hal ini dilakukan sebagai upaya memasangkan lutung jantan dengan betina untuk kedepannya dapat melakukan perkawinan dan membentuk kelompok baru. Menurut Hendratmoko (2009), penempatan lutung jawa pada kandang disesuaikan dengan sifat dasar mereka sebagai hewan sosial yang berkelompok dengan satu jantan dewasa sebagai pemimpin atau alpha male. Reproductive cycle; female javan langur; Trachypithecus auratus; estrogen and luteinizing hormone levels Lutung jawa yang sedang menjalani proses rehabilitasi di JLC diharapkan melakukan perkawinan secara alami, namun hal ini sulit terjadi. Penelitian dilakukan bertujuan untuk mengetahui fase reproduksi yang dialami oleh lutung jawa betina dewasa berdasarkan pengukuran kadar hormon estrogen dan hormon leutinizing
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
