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Oematan, Gustaf
Fakultas Peternakan Kelautan Dan Perikanan, Universitas Nusa Cendana
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Veterinary Other

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Pengaruh Lama Waktu Biofermentasi Chromolaena odorata dengan Sumber Karbon Tepung Putak Terhadap Konsentrasi VFA Persial dan Produksi Gas Metan Oematan, Nisan N. Y; Benu, Imanuel; Oematan, Gustaf; Dami Dato, Twen O
Animal Agricultura Vol 1 No 3 (2024): Animal Agricultura
Publisher : Yayasan Sumber Daya Manusia Cerdas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59891/animacultura.v1i3.40

Abstract

This study aims to evaluate the effect of long biofermentation time of Chromolaena odorata with putak flour carbon source on persial VFA concentration and methane gas production. The method used in this study is an experimental method with Complete Randomized Design (CRD) with 4 treatments and 4 repeats so that there are 16 experimental units. The treatment levels are as follows: LB21 = Biofermentation duration for 21 days (as control), LB14 = Biofermentation duration for 14 days, LB7 = Biofermentation duration for 7 days, LB0 = Biofermentation duration for 0 days. The variables studied were the concentration of acetate, propionate, butyrate, valerate and methane gas production. The results of the study are as follows: LB21: acetate of 12.06 mM, propionate of 2.98 mM, butyrate of 1.22 mM, valerate of 0.35 mM and methane gas production of 2.80 mM; LB14: acetate of 10.60 mM, propionate of 3.04 mM, butyrate of 1.39 mM, valerate of 0.33 mM and methane gas production of 2.48 mM; LB7: acetate of 10.89 mM, propionate of 2.83 mM, butyrate of 0.82 mM, valerate of 0.28 mM and methane gas production of 2.51 mM; LB0: acetate of 14.03 mM, propionate of 3.02 mM, butyrate of 1.59 mM, valerate of 0.30 mM and methane gas production of 3.45 mM. The results of statistical analysis showed that the effect of the length of biofermentation time of Chromolaena odorata with a carbon source of putak flour had no real effect (P>0.05) on the concentration of acetic acid, propionic, butyrate valerate and methane gas production. It was concluded that the length of time of biofermentation with the carbon source of putak flour did not affect the concentration of acetic, propionic, butyric, valerate acids and methane gas production.
Pengaruh Level Penggunaan Jerami Padi Sebagai Absorban Terhadap Kandungan Nutrisi Silase Campuran Rumput Kume (Shorgum Plumosum Var. Timorense) dan Mucuna Bracteata Kii, Petrus Renoldy; Oematan, Gustaf; Lestari, Gusti A. Y.
Animal Agricultura Vol 2 No 1 (2024): Animal Agricultura
Publisher : Yayasan Sumber Daya Manusia Cerdas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59891/animacultura.v2i1.49

Abstract

This research aims to determine the effect of the level of use of rice straw as an absorbent on the nutritional content of a mixture of kume grass (Sorghum Plumosum Var. Timorense) and (Mucuna bracteata) silage. The research method is an experimental method with a Completely Randomized Design (CRD) pattern consisting of 5 treatments and 4 replications. The treatment consists of 0% rice straw + 100% kume grass + Mucuna bracteata (AJP0), 5% rice straw + 95% kume grass + Mucuna brakteata (AJP5), 10% rice straw + 90% kume grass + Mucuna bracteata (AJP10), 15% rice straw + 85% kume grass + Mucuna bracteata (AJP15), 20% rice straw + 80% kume grass + Mucuna bracteata (AJP20). The variables measured are dry matter (DW), organic matter (OM), crude protein (CP), crude fiber (CF) and crude fat (CF). The data were analyzed using analysis of variance (ANOVA) and continued with a multiple dunca distance test with the help of SPSS version 25 data processing software. The results of the analysis showed that the addition of rice straw as absorbance affected (P<0.01) and increased BK from 12.15 % to 32.37%, SK 28.42% to 35.75%. And reduced OM from 88.57% to 80.60%, CP from 15.37% to 8.22%, CF from 7.30%-5.05%. Total DW increased linearly from 12.15% (AJP0) to 32.27% (AJP20), likewise OM decreased linearly from 88.32% to 80.60% (AJP20). Likewise, CP experienced a linear decrease from 15.37% (AJP0) to 8.22% (AJP20), likewise CF experienced a linear increase from 28.42% (AJP0) to 35.75% (AJP20), as well as CF content decreased linearly from 7.30% (AJP0) to 5.05% (AJP20). Conclusion along with the use of rice straw as an absorbent in the fermentation of a mixture of fresh grass and Mucuna bracteata can increase DM, OM and CF. reducing CP and CF in silage.
Pengaruh Lama Waktu Biofermentasi Chromolaena Odorata dengan Sumber Karbon Gula Lontar Cair terhadap Kandungan NDF, ADF Serta Mineral Ca dan P Tsael, Yulvi Lidia; Lestari, Gusti A. Y.; Oematan, Gustaf; Benu, Imanuel
Animal Agricultura Vol 2 No 1 (2024): Animal Agricultura
Publisher : Yayasan Sumber Daya Manusia Cerdas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59891/animacultura.v2i1.57

Abstract

The purpose of this study was to determine the effect of the length of biofermentation time of Chromolaena odorata with the best source of liquid palm sugar carbon to obtain the content of NDF, ADF, and Minerals Ca and P. The method used in this study was an experimental method with Complete Randomized Design (RAL) with 4 treatments and 4 repeats so that there were 16 experimental units. The treatment levels are as follows: LB21 = Biofermentation duration for 21 days (as control), LB14 = Biofermentation duration for 14 days, LB7 = Biofermentation duration for 7 days, LB0 = Biofermentation duration for 0 days. The variables studied were NDF, ADF, and Ca and Phosphorus Minerals. The results of the study are as follows: LB21: NDF of 40.286%, ADF of 29.2775%, Calcium of 0.9105%, Phosphorus of 0.53652%; LB14: NDF of 57.382%, ADF of 36.1975%, Calcium of 0.90725%, Phosphorus of 0.53775%; LB7: NDF of 47.02%, ADF of 30.1275%, Calcium of 0.86925%, Phosphorus of 0.51225%; LB0: NDF of 2.478%, ADF of 40.7375%, Calcium of 0.8045%, Phosphorus of 0.48375%. The results of statistical analysis showed that the long treatment of biofermentation time with a source of liquid palm sugar carbon had a significant effect (P<0,05) to contet ndf dan adf chromolaena odorata, whereas parameter calcium and phosphorus no real effect (P>0.05). It was concluded that the length of biofermentation time of Chromolaena odorata with a source of liquid palm sugar carbon affected the levels of Neutral Detergent Fiber and Acid Detergent Fiber but did not affect the content of Calcium and Phosphorus Minerals.
Pengaruh Lama Waktu Fermentasi terhadap Kandungan Asam Phytat, Kecernaan Bahan Kering dan Bahan Organik Dedak Padi secara In Vitro Tandang, Mariano D.; Oematan, Gustaf; Lestari, Gusti A. Y.
Animal Agricultura Vol 2 No 1 (2024): Animal Agricultura
Publisher : Yayasan Sumber Daya Manusia Cerdas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59891/animacultura.v2i1.64

Abstract

The aim of this research was to determine the effect of long fermentation time for rice bran on phytic acid content, dry matter digestibility and organic matter. The method used in this research was an experimental method with a completely randomized plan (CRD) of 5 treatments and 5 replications so that there were 25 experimental units, consisting of LF0: 0 days fermentation time, LF2: 2 days fermentation time, LF4: 2 days fermentation time. long fermentation time 4 days, LF6: long fermentation time 6 days, LF8: long fermentation time 8 days. The parameters taken are phytic acid content, dry matter digestibility (KcBK) and organic matter (KcBO). The results obtained statistically stated that the fermentation time of up to 8 days showed the same results or had a significant effect (P<0.05) on the digestibility of dry matter and organic matter and had no significant effect (P>0.05) on the phytic acid content. The conclusion that can be drawn is that different fermentation times for rice bran can increase the digestibility of dry matter and organic matter in vitro even though the phytic acid content obtained is the same.
Pengaruh Lama Waktu Biofermentasi Chromolaena odorata dengan Penambahan Sumber Karbon Gula Lontar Cair terhadap Kandungan Selulosa, Lignin, Asam Pitat, Kadar Nitrit dan Saponin Lie, Cinta Kristin; Mullik, Marthen L.; Dami Dato, Twen O.; Oematan, Gustaf
Animal Agricultura Vol 2 No 1 (2024): Animal Agricultura
Publisher : Yayasan Sumber Daya Manusia Cerdas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59891/animacultura.v2i1.66

Abstract

The purpose of this study was to determine the effect of the addition of liquid palm sugar as a carbon source in the Chromolaena odorata biofermentation process on cellulose, lignin, phytic acid, nitrite and saponin content. This study used a completely randomized design (CRD) with 4 treatments and 4 replicates. The treatments were: LB0 = 0 days of biofermentation, LB7 = 7 days of biofermentation, LB14 = 14 days of biofermentation, and LB21 = 21 days of biofermentation. The variables observed were cellulose, lignin, phytic acid, nitrite and saponin content. The data obtained were analyzed using Analysis of Variance and Duncan's test. The results showed that the length of biofermentation time significantly decreased cellulose content with a range of (23.52-19.26%), lignin (13.75-8.72%), phytic acid (4.03-2.00%), nitrite content (6.60-4.73ppm), and saponin (7.68-5.84%). It was concluded that the length of Chromolaena odorata biofermentation time decreased the content of cellulose, lignin, phytic acid, nitrite content and saponins with varying lengths of biofermentation time, namely the length of biofermentation time of 7 days (LB7) getting a total value of cellulose content (20, 40%), lignin (9.23%), the length of biofermentation time of 14 days get the total value of phytic acid content (2.23%), nitrite (4.86ppm) and the length of biofermentation time of 21 days get the total value of saponin content (5.84%).
Audio Visual Nutrition Education and Breakfast Habits in Children : Edukasi Gizi Berbasis Audio Visual dan Kebiasaan Sarapan Pada Anak Oematan, Gustaf; Oematan, Grouse; Mege, Stacia R
Mattawang: Jurnal Pengabdian Masyarakat Vol. 4 No. 2 (2023)
Publisher : Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.mattawang1785

Abstract

Breakfast is very important for the body. The right breakfast can provide the energy and important nutrients needed by children. The purpose of this service activity is to increase children's knowledge about nutrition and the importance of breakfast. This educational activity is carried out using audio-visual media in the form of animated videos. The results of the service showed an increase in students' knowledge before (pre test 4%) and after (post test 76.3%) educational activities were carried out. Abstrak Sarapan sangat penting bagi tubuh. Sarapan yang tepat dapat memberikan energi dan nutrisi penting yang dibutuhkan oleh anak. Tujuan kegiatan pengabdian ini adalah untuk meningkatkan pengetahuan anak mengenai gizi dan pentingnya sarapan. Kegiatan edukasi ini dilakukan menggunakan media audio visual dalam bentuk video animasi. Hasil pengabdian menunjukkan adanya peningkatan pengetahuan siswa sebelum (pre test 4%) dan setelah (post test 76,3%) kegiatan edukasi dilakukan.
Pengaruh Level Inokulum EM4 (Effective Microorganisms 4) terhadap Kandungan Lemak Kasar dan Anti Nutrisi pada Kulit Kopi Produk Fermentasi Roswita Dulanaretno Bariman; Gustaf Oematan; Imanuel Benu; Marthen Luther Mulik
Journal of Innovative and Creativity Vol. 5 No. 3 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i3.4143

Abstract

Tujuannya studi ini guna melihat pengaruh pengguna level inokulum EM4 (Effective Microorganisms 4) terhadap kandungan lemak kasar dan anti nutrisi (tanin, dan kafein) pada kulit kopi. Studi ini memakai RAL dengan 6 perlakuan dan 4 ulangan sehingga memperoleh 24 unit percobaan. Perlakuannya yakni Li-0 (kulit kopi tanpa EM4), Li-2 (kulit kopi + 2 ml EM4), Li-4 (kulit kopi + 4 ml EM4), Li-6 (kulit kopi + 6 ml EM4), Li-8 (kulit kopi + 8 ml EM4), Li-10 (kulit kopi +10 ml EM4). Parameter yang diamati kandungan lemak kasar dan anti nutrisi (kafein dan tanin). Datanya didapat dianalisa memakai sidik ragam dan uji Duncan. Temuan studi ini memperlihatkan kulit kopi dengan penambahan level inokulum EM4 (Effective Microorganisms 4) pada kandungan lemak kasar, kafein dan tanin memberikan pengaruh yang sangat nyata (P<0,01). Pada penelitian ini kandungan lemak kasar mengalami peningkatan sedangkan kandungan tanin dan kafein mengalami penurunan dengan masing-masing yakni 3,92-5,90%, 1,24-0,97% dan 0,50-0,20%. Melihat temuan studi ini memperlihatkan fermentasi kulit kopi dengan memakai inokulum EM4 dapat meningatkan kandungan lemak kasar dan dapat menurunkan kandungan tanin dan kafein. Level yang terbaik yang bisa meningkatkannya kandungan lemak kasar serta penurunan kandungan tanin dan kafein terdapat pada perlakuan Li-8 .
Pengaruh Substitusi Hay Rumput Kume Dengan Hay Fodder Jagung Hidroponik Terhadap Profil Darah Kambing Kacang Siyanting Da Conceicao; Gusti A. Y. Lestari; Imanuel Benu; Gustaf Oematan
Animal Agricultura Vol 3 No 3 (2026): Animal Agricultura
Publisher : Yayasan Sumber Daya Manusia Cerdas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59891/animacultura.v3i3.141

Abstract

This study aims to evaluate the effect of kume grass hay substitution with hydroponic mize  hay fodder on the blood profile of kacang goats. A total of eight male goats aged 6-8 months with a body weight of 10-15 kg were used in the change over design. Four feed traetmens were used , namaely DMF0 (70% kume grass hay + 30% concentrate), DMF1 (52,5% kume grass hay + 17,5% hydroponic mize hay fodder + 30% concentrate), DMF2 (35% kume grass hay + 35% hydroponic mize hay fodder + 30% concentrate), DMF3 (17,5% kume grass hay + 52,5% hydroponic mize hay fodder + 30% concentrate). The data was analysed using analysis pf variance (ANOVA) with SPSS 25 software. The parameters measured included leukocytes, erythrocytes, haemoglobin, and hematoctir (PCV). The results of the analysis showed that the substitution of kume grass hay with hydroponic mize hay fodder did not have a significant effect on all blood parameters measured (P>0,05). The mean values of leukocytes were 9,612-19,975 g/dl, erythrocytes 12,920-18,773 µm. haemoglobin 6,875-10,125 g/dl, and haematocrit 19,925-30,200%. In conclucion, hydroponic mize  hay fodder  can be used as a feed alternative without affecting the blood profile of kacang goats, supporting metabolic balanced and livestock health.
Strategi Peningkatan Sistem Kesehatan Ternak Berkelanjutan di Lahan Kering Alfonsus I. Malo; Gustaf Oematan
Animal Agricultura Vol 3 No 3 (2026): Animal Agricultura
Publisher : Yayasan Sumber Daya Manusia Cerdas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59891/animacultura.v3i3.142

Abstract

Dryland regions present specific challenges in livestock management due to limited feed availability, water scarcity, high disease pressure, and extreme environmental conditions. This study aims to formulate strategies for improving sustainable livestock health through an integrated approach combining feed management, affordable technology, biosecurity, and institutional support. The research employs an in-depth literature review of empirical studies related to livestock health management, forage quality, sanitation, and environmental adaptation in dryland areas. The findings show that continuous access to high-quality feed through the use of drought-tolerant legumes, forage conservation, and household forage gardens can improve livestock immunity and reduce disease risks. The application of biosecurity measures, vaccination, and parasite control based on sanitation significantly reduces the prevalence of infectious diseases. In addition, affordable technologies such as temperature sensors, IoT-based monitoring, digital health record systems, and low-cost ventilation improve early detection accuracy and management efficiency. The success of livestock development in dryland regions is also influenced by government and institutional support through the provision of veterinary services, training, subsidies, and mentoring programs. Therefore, sustainable livestock health systems in dryland environments require the integration of nutrition, environmental management, technology, and policy to enhance livestock resilience and farmer welfare.
Pengaruh Taraf Filtrat Abu Sekam Padi (FASP) Ditambah Urea Terhadap Ph, Konsentrasi VFA Dan NH3 Tongkol Jagung Secara In Vitro Intan Lawalu; Luh Sri Enawati; Gustaf Oematan
Animal Agricultura Vol 3 No 3 (2026): Animal Agricultura
Publisher : Yayasan Sumber Daya Manusia Cerdas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59891/animacultura.v3i3.146

Abstract

The research objective was to determine the effect of the level of filtrate rice husk ash plus urea on the pH, the concentration of VFA and NH3 corn cobs in vitro, this research method used is an experimental method with a basic design of completely randomized design (CRD) consisting of 6 treatments with 3 replications, thus this study uses 18 experimental units. The treatment in this study is R0; corn cobs without FASP added with 4% urea, R1: corn cobs added with FASP 5% and 4% urea, R2: corn cobs added with FASP 10% and 4% urea, R3: corn cobs added with FASP 15% and 4% urea, R4: corn cobs added with FASP 20% and 4% urea, R5: corn cobs added with FASP 25% and 4% urea. Data were analyzed by analysis of variance and Duncan's test. The parameters observed were the pH, the concentration of VFA and NH3 in vitro. The average value of each variable in each treatment is the pH R0 (7.10), R1 (7.00), R2 (6.85), R3 (6.73), R4 (6, 77), R5 (6.88). The concentrations of VFA (mM) are R0 (106.28), R1 (118.10), R2 (141.08), R3 (148.45), R4 (144.25), R5 (131.33). The concentrations of NH3 (mM) are R0 (17.96), R1 (37.80), R2 (38.04), R3 (51.71), R4 (42.68), R5 (40.71). The results of statistical analysis showed that the effect of the level of filtrate rice husk ash plus urea had a very significant effect (P<0.01) on the degree of acidity (pH), a significant effect (P<0.05) on VFA and no significant effect (p>0.05) on NH3. This it was concluded that the effect of the level of FASP plus urea had a varying effect on the pH, the concentration of VFA and NH3 in vitro in corn cob flour.
Co-Authors Alfonsus I. Malo Amalo, Daud Arnol E. Manu Aspatria, Utma Dami Dato, Twen O Daud Amalo Doko, Hendrik Eben Umbu Kamaru Langga Edwin J. L. Lazarus Erna Hartati Erna Hartati Erna Hartatia Fangidae, Herru G. A.Y. Lestari Gemini E.M. Malelak Gemini Ermiani Malelak Grouse Oematan Gusti A. Y. Lestari Gusti A. Y. Lestari Gusti Ayu Yudit Lestari Hamianti . Heri Armadianto I Gusti B. Adwita Arsa I Gusti Ngurah Jelantik Ignasius Mujur Imanuel Benu Intan Lawalu Jelantik, I Gusti Ngurah Jemiman, Maria Asri Anita Kii, Petrus Renoldy Kleden, Markus Miten Kristalia Sona Lestari, Gusti Ayu Y. Lie, Cinta Kristin Luh Sri Enawati M. L. Mullik Mariana Nenobais Maritje Aleonor Hilakore Marthen L. Mullik Marthen Luther Mulik Marthen Luther Mullik Marthen Yunus Marthen Yunus Mathen Mullik Mbali, Rambu Yow Mege, Stacia R Mesang, Sarintan Novite I. Muhammad S Abdullah Mullik, M. L. N. Taratiba Natalina E.E Gomes Oematan, Grouse Oematan, Nisan N. Y Rendemai, Isidorus Roswita Dulanaretno Bariman Saefatu, Markus E. Siyanting Da Conceicao Sogen, Yasinta Tamelab, Nikanor Tandang, Mariano D. Tsael, Yulvi Lidia Twen O. Dami Dato Twen O. Dami Dato Twen O. Dami Dato Twen. O. Dami Dato Twenfosel Ocsierly Dami Dato Upik Syamsiar Rosnah Utma Aspatria Yakob R. Noach Yexal Kapitan Yohana Hartati Nidi Yupri Yupson Ndoluanak