Pengamatan terhadap perilaku reproduksi dan profil Pregnanediol-3-Glucuronide (PdG) Kukang Sumatra (Nycticebus coucang) Betina di Penangkaran, telah dilakukan selama tiga bulan di Pusat Studi Satwa Primata, LPPM-IPB dan Laboratorium Mikrobiologi dan Imunologi Pusat Studi Satwa Primata Bogor, Institut Pertanian Bogor. Penelitian bertujuan untuk mengetahui perilaku harian N. coucang yang difokuskan pada pengamatan perilaku reproduksi dan pengukuran kadar hormon metabolit Pregnanediol-3-Glucuronide (PdG) pada feses N. coucang. Dari pengamatan, kami mendapati perilaku reproduksi berupa jantan mengendus (sniffing) dan menjilat (licking) bagian genital betina. Hingga waktu pengamatan berakhir, tidak teramati terjadinya kopulasi. Kadar hormon PdG pada kandang no. 2 berkisar dari 20,85±5569,11pg/ml sampai 19995,81±11061,7 pg/ml, sedangkan kadar hormon PdG pada kandang no. 5 berkisar dari 504,97±936,67 pg/ml sampai 18168,68±12556,1 pg/ml.

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Observation of reproductive behavior and profile of Pregnanediol-3-Glucuronide (PdG) in captive housed female sumatran slow loris (Nycticebus coucang) has been conducted for three months at Pusat Studi Satwa Primata, LPPM-IPB and Laboratorium Mikrobiologi dan Imunologi Pusat Studi Satwa Primata Bogor, Institut Pertanian Bogor. The study aims to determine the daily behavior of N. coucang focusing on the observation of the reproductive behavior and measurement on the levels of the hormone metabolites Pregnanediol-3-glucuronide (PdG) in feces of N. coucang.

From the observation, reproductive behavior such as sniffing and licking of female genital parts by male N. coucang were observed. Until the end of the observation time, copulation is not observed. PdG hormone levels in the enclosure no. 2 is range from 20.85 ± 5569,11pg/ml to 19995.81 ± 11061.7 pg/ml, while PdG hormone levels in the enclosure no. 5 is range from 504.97 ± 936.67 pg/ml to 18168.68 ± 12556.1 pg/ml.