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"Telah dilakukan penelitian pada kukang sumatera (Nycticebus coucang) di penangkaran PSSP. Tujuan dari peneltian ini adalah untuk mengamati ada atau tidaknya pengaruh tekanan lingkunan terhadap kukang yang telah hidup di penangkaran selama ±8 tahun. Subjek penelitian meliputi kandang K1: satu kukang jantan, satu kukang betina, satu anak; kandang K2: satu kukang jantan; kandang K3: satu kukang jantan dan satu kukang betina. Penelitian meliputi pengamatan aktvitas sang hari (diurnal) pada pukul 09.00-15.00 (GMT+7) dengan metode scan sampling interval 10 menit tanpa jeda selama 1.920 menit dalam satu bulan, serta pengukuran kadar hormon kortisol feses dengan metode kompetitif ELISA (Enzyme-Linked Immunosorbent Assay). Konsentrasi kortisol didapatkan melalui konversi nilai OD terhadap kurva standar persamaan y= 1/(-2.12642 + 6.381724x2.47709) dan y= 1/(-5.0690 + 2.89654x4.099722). Hasil penelitian menunjukkan aktivitas diurnal pada kukang dengan persentase rata-rata terbesar meliputi unseen 94,12% pada K1, sleeping 45,22% pada K3, dan resting pada 33,05% K2. Kadar kortisol terdeteksi berfluktuasi, kadar kortisol tertinggi adalah 0,6 ng/ml dan terendah 0,02 ng/ml.

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Research on slow loris (Nycticebus coucang) has conducted in Primate Research Center, Bogor. This research aim to examine the presence of environmental influence to Nycticebus coucang which have been living in captivity for ±8 years. Subject on three cages consist of K1: one male and one female with an infant; K2: one single male; K3: one male and one female.

Behavioural observation during the day (diurnal) had been done at 09:00-16:00 (GMT +7) through scan sampling method with 10 minutes interval without pause for 1.920 minutes for one month. Cortisol level had been measured with the competitive-ELISA (Enzyme-Linked Immunosorbent Assay) method. Cortisol level obtained through conversion of OD value with standard curve y= 1/(-2.12642 + 6.381724x2.47709) and y= 1/(-5.0690 + 2.89654x4.099722).

Result of the study showed diurnal activities with highest average percentage are unseen 94,12% on K1, sleeping 45,22% on K3, and resting 33,05% on K2. Cortisol levels are fluctuating. Highest cortisol level is 0.6 ng/ml and the lowest is 0.02 ng/ml. "

"Telah dilakukan penelitian pada kukang sumatra (Nycticebus coucang) di Penangkaran Pusat Studi Satwa Primata IPB. Penelitian bertujuan untuk mengetahui perilaku reproduksi N. coucang dan mengetahui kadar hormon metabolit Estrone Conjugate (E1C) N. coucang di penangkaran. Subjek penelitian terdiri dari dua individu N. coucang betina dewasa. Penelitian meliputi pengamatan aktivitas malam hari (nokturnal) pada pukul 17.00?05.00 (GMT +7) dengan metode Focal Animal Sampling dengan interval 10 menit tanpa jeda selama 1300 menit dalam tiga bulan, serta pengukuran kadar hormon metabolit E1C feses dengan metode ELISA (Enzyme-linked Immunoasorbent Assay) menggunakan Estrone Enzyme Immunoassay kit. Konsentrasi hormon metabolit E1C didapatkan melalui konversi nilai OD terhadap kurva standar y = -0,046ln(x) + 0,3088. Hasil penelitian menunjukkan perilaku reproduksi pada N. coucang dengan persentase rerata 1%. Perilaku reproduksi yang teramati meliputi genital licking dan genital sniffing. Konsentrasi hormon metabolit E1C dengan konsentrasi tertinggi terdapat pada K5 tanggal 30 September 2015 (1634,73 ± 400,18 pg/ml) dan terendah terdapat pada K2 tanggal 11 Oktober 2015 (5,75 ± 555,82 pg/ml). Panjang siklus estrus berkisar antara 10-12 hari.

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Research on female Nycticebus coucang had conducted in Primate Research Center, Bogor. The purpose of this research is to examine the reproductive behavior and measure estrone conjugate (E1C) level in captive housed female N. coucang. Subject consists of two sexually adult N. coucang.

Behavioral observation during the night (nocturnal) had been done at 17.00?05.00 (GMT +7) through Focal Animal Sampling with 10 minutes interval without pause for 1300 minutes in three months. E1C level had been done with the competitive-ELISA (Enzyme Linked Immunosorbent Assay) method. E1C level was obtained through the conversion of OD value with standard curve y = -0,046 ln(x) + 0,3088.

Results showed that the average percentage of reproductive behavior on N.coucang is 1%. Reproductive behavior observed were genital licking and genital sniffing. The highest E1C level was on K5?s September 30th 2015 (1634,73 ± 400,18 pg/ml) and the lowest was on K2?s October 11th 2015 (5,75 ± 555,82 pg/ml). The length of estrus cycle was ranged in 10-12 days."