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All Journal Buletin Peternakan JAS (Journal of Animal Science) Bakti Cendana: Jurnal Pengabdian Masyarakat Journal of Tropical Animal Science and Technology Bantara Journal of Animal Science
Nahak, Oktovianus Rafael
Program Studi Peternakan, Fakultas Pertanian, Universitas Timor
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Nursing Social Sciences Veterinary Other

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The In Vitro Digestibility of Complete Silage From Sorghum bicolor (L.) Moench Ingredient using Different Additives Oktovianus Rafael Nahak; Paulus Klau Tahuk; Gerson Frans Bira; Yohanes Baptista Ambone
Buletin Peternakan Vol 45, No 2 (2021): BULETIN PETERNAKAN VOL. 45 (2) MAY 2021
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v45i2.43300

Abstract

This study aimed to determine the in vitro nutrient digestibility of complete silage from Sorghum bicolor (L.) Moench using different additives. The method used was a completely randomized design containing 4 treatments and 4 replications, namely, R1: Sorghum bicolor (L.) Moench + L. leucocephala (without additives/control), R2: Sorghum bicolor (L.) Moench + L. leucocephala + 20% rice bran + 10% rock sugar, R3: Sorghum bicolor (L.) Moench + L. leucocephala + 20% corn meal + 10% rock sugar, R4: Sorghum bicolor (L.) Moench + L. leucocephala + 20% pollard + 10% rock sugar. The additive material percentage was calculated based on the chopped weight of Sorghum bicolor (L.) Moench and L. leucocephala. The data obtained were assessed by the analysis of variance, and then continuously analyzed by the Duncan's multiple range test. The Sorghum bicolor (L.) Moench plants were harvested on 70 days after planting and withered for 3 hours to reduce the moisture content, and then chopped at 3 cm size. The chopped results were mixed with the additive materials based on the treatments and their percentages applied, and then moved to the plastic container (silo), the mixture that was moved into the silo was suppressed to make the chopped layer solid (anaerobic principal). Ensilage process was stood for 21 days. The complete silage was removed, and its in vitro nutrient digestibility was analyzed. The results showed that the use of additives could improve the dry matter, organic matter, N-NH3, and VFA digestibility of complete silage from Sorghum bicolor (L.) Moench. It can be concluded that the additive supplementation of 20% pollard and 10% rock sugar can improve the dry matter, organic matter, N-NH3, and VFA digestibility of complete silage from Sorghum bicolor (L.) Moench. 
Perbandingan Penggunaan Dua Jenis Ransum terhadap Pertambahan Bobot Badan Harian (PBBH), Konsumsi Ransum dan Konversi Ransum Ayam Broiler Aristo Kurniawan Sio; Oktovianus Rafael Nahak; Agustinus Agung Dethan
JAS Vol 1 No 1 (2016): Journal of Animal Science (JAS) - January 2016
Publisher : Program Studi Peternakan, Fakultas Pertanian, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/ja.v1i01.28

Abstract

Penelitian ini bertujuan membandingkan kualitas ransum yang dibuat sendiri dengan ransum konvensional terhadap penampilan (PBBH ), konsumsi ransum, dan konversi ransum ayam broiler, dilaksanakan di kandang peternakan, Fakultas Pertanian Universitas Timor, Kabupaten Timor Tengah Utara selama 1 (satu) bulan lebih berlangsung dari tanggal 17 Februari sampai dengan 24 Maret 2015. Masing-masing ransum di berikan pada ayam Broiler dari umur 0-35 hari atau 5 minggu dengan melihat penampilan ayam broiler dan PBBH. Jumlah ayam broiler yang digunakan sebanyak 80 ekor. Hasil penelitian menunjukkan perlakuan ransum buatan memberikan pengaruh yang lebih baik terhadap pertambahan bobot badan, konsumsi dan konversi ransum. Bobot badan akhir umur 35 hari pada perlakuan ransum buatan dengan rataan pada kisaran 184,58-223,15 gram/ekor; dengan rata- rata akhir 205,39 gram/ekor lebih tinggi dibandingkan pada perlakuan ransum konvensional yang menghasilkan kisaran rataan 181,88-209,91 gram/ekor; dengan rata-rata 194,62 gram/ekor. Konsumsi ransum selama 35 hari pada perlakuan ransum buatan pada kisaran rataan 629,39-658,78 gram/ekor, dengan rata-rata 640,43 gram/ekor, lebih rendah dibandingkan pada perlakuan ransum konvensional yang menghasilkan rataan 695,15-728,48, dengan rata-rata 713,81 gram/ekor. Konversi ransum pada perlakuan ransum buatan berada pada kisaran ratan 2,81-3,48 gram/ekor, dengan rata- rata konversi ransum 3,12 gram, lebih baik dibandingkan pada perlakuan ransum konvensional yang menghasilkan kisaraan rataan 3,08-3,88 gram/ekor, dengan rata-rata konversi 3,67 gram. ©2016 dipublikasikan oleh JAS.
Konsumsi BETN, SK, dan Lemak Kasar Kambing Kacang Jantan yang Mengalami Tingkat Pembatasan Pakan yang Berbeda Seuk, Serlinda Seuk; Nahak, Oktovianus R.; Klau Tahuk, Paulus
Bantara Journal of Animal Science Vol. 5 No. 2 (2023): BJAS
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/bjas.v5i2.4233

Abstract

This study aims to determine the consumption of  nitrogen free extract (NFE), crude fiber (CF) and extract eter (EE) of male kacang goats in the feed restriction phase after experiencing different levels of feed restriction. The study used an experimental method with a completely randomized design (CRD) which consisted of 3 treatments and 5 replications, namely: T0: Cattle without food restrictions, T1: Cattle were limited to 100% feed according to maintenance life and T2: Cattle were limited to 50% of maintenance life. The results showed that the consumption NFE of natural grass of treatment T0 and T1 was relatively the same, but higher than T2 (P<0.05); conversely the consumption of NFE of concentrate was relatively the same (P>0.05) among the treatments; while the total consumption of NFE of natural grass and concentrate treatment T1 and T2 was relatively the same (P>0.05) and lower (P<0.05) than treatment T0. Consumption CF of natural grass in the T0 and T1 treatments was relatively the same (P>0.05) and higher (P<0.05) than the T2 treatment; On the other hand, the total consumption CF of natural grass and concentrates in the T1 and T2 treatments was relatively the same (P>0.05) and lower (P<0.05) than the T0 treatment. Likewise, the consumption EE of natural grass in the treatment of T0 and T1 was relatively the same (P>0.05) and higher (P<0.05) than treatment T2. The consumption of NFE and CF concentrates from the three treatments was relatively the same (P>0.05); Likewise, the consumption EE of concentrate and total consumption EE of natural grass and concentrate from male kacang goats in the feed restriction phase of the 3 different groups was not significant (P>0.05). Consumption of NFE for each treatment was T0 of 131.66 ± 41.42, T1 of 84.85 ± 38.88 and T2 of 83.70 ± 0.03. Consumption of crude fiber (g/head/day) for each treatment was T0 of 42.89 ± 6.33, T1 of 33.73 ± 9.52 and T2 of 26.96 ± 0.03. Consumption of extract eter (g/head/day) for each treatment was T0 of 5.52 ± 2.24, T1 of 3.23 ± 1.85, and T2 of 3.53 ± 0.00. It can be concluded that the restriction of feed (feed restriction) up to 50% of the maintenance life does hinder the livestock growth process, but does not interfere with the health status of goats (indicated and physiological status are in the normal range).
Nitrogen Intake and Excretion in Male Kacang Goats Receiving Feed With Different Energy Levels Hoar, Matilda; Tahuk, Paulus Klau; Nahak, Oktovianus R.
Journal of Tropical Animal Science and Technology Vol. 7 No. 1 (2025): Journal of Tropical Animal Science and Technology
Publisher : Animal Husbandry Study Program, Faculty of Agriculture, Timor University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jtast.v7i1.7446

Abstract

This study aims to determine the nitrogen intake and excretion status of male Kacang goats that receive feed with different energy levels. The study was conducted for three months in the livestock experimental pen of the Faculty of Agriculture, Science and Health, University of Timor Kefamenanu, North Central Timor Regency. Nine male Kacang goats with an initial body weight of 11 to 13 kg and aged between 6 and 12 months were divided into three groups, each group representing a different treatment. The treatments were: T1 = livestock obtained an energy level of 65%, + CP 15%, T2 = livestock obtained an energy level of 67%, + CP 15%, and T3 = livestock obtained an energy level of 70%, + CP 15%.The variables measured consisted of nitrogen consumption, fecal nitrogen and urine nitrogen. The results of the study showed that the highest nitrogen consumption in the T3 treatment was 3.2033 ± 0.1549 g/head/day, followed by the T2 treatment of 3.0894 ± 0.0384 g/head/day, and the T1 treatment of 2.6159 ± 0.0658 g/head/day; fecal nitrogen in the T1 treatment was 1.5070 ± 0.3880 g/head/day, followed by the T3 treatment of 1.1673 ± 0.2751 g/head/day, and the T2 treatment of 1.1566 ± 0.5887 g/head/day; urinary nitrogen in the T2 treatment was 0.7906 ± 0.1804 g/head/day, followed by the T1 treatment of 0.7606 ± 0.0456 g/head/day and the T3 treatment of 0.6933 ± 0.0637 g/head/day.   The results of the analysis of variance showed that the treatment had a significant effect on nitrogen consumption and had no significant effect on fecal nitrogen and urinary nitrogen. It was concluded that feeding with different energy levels could increase nitrogen intake but relatively the same fecal and urinary nitrogen excretion. Keywords: Nitrogen Intake, Nitrogen Excretion, Kacang Goat, Energy Level
PKM Budidaya Ayam Kampung Di Kelompok Tani Adika Kefamenanu Lisnahan, Charles Venirius; Nahak, Oktovianus Rafael; Tobing, Wilda Lumban; Tefa, Azor Yulianus; Bira, Gerson Frans
Bakti Cendana Vol 6 No 1 (2023): Bakti Cendana: Jurnal Pengabdian Masyarakat
Publisher : LPPM Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/bc.6.1.2023.12-25

Abstract

Tujuan pengabdian ini adalah meningkatkan kesejahteraan Kelompok Tani Adika melalui program PKM budidaya ayam Kampung. Pengabdian ini dilakukan di kelompok Tani Adika, Kefamenanu, Nusa Tenggara Timur. Metode yang digunakan adalah participatory action research, kelompok tani dan Tim pelaksana bersama menentukan jenis kegiatan dan pelaksanaan kegiatan di lapangan berdasarkan urgensi dan prioritas. Solusi dalam mengatasi permasalahan meliputi kegiatan persiapan, menetapkan prioritas kegiatan berdasarkan hasil analisis situasi awal dan disesuaikan dengan kebutuhan dan kondisi aktual. Kegiatan selanjutnya yaitu penyuluhan, pelatihan/pendampingan sekaligus praktek pelaksanaan kegiatan untuk meningkatkan kemampuan kelompok. Kegiatan meliputi pembuatan brooding, pembuatan ransum komplit, pemeliharaan fase starter dalam brooding, pemeliharaan fase grower dan pullet, pembuatan pupuk bokasi dengan memanfaatkan ekskreta ayam, penjualan ayam dan perhitungan ekonominya serta evaluasi kegiatan sesuai tahapan pelaksanaan. Hasil yang dicapai adalah ketrampilan kelompok tani meningkat dengan memanfaatkan teknik pemeliharaan brooding dan pemeliharaan fase pertumbuhan serta manajemen pemeliharaan lainnya seperti pencegahan penyakit dan vaksinasi dan pencampuran pakan. Dari kegiatan ini, kelompok mitra dapat menambah jumlah induk ayam yang terseleksi untuk pengembangan lebih lanjut. Pendapatan kelompok mitra juga meningkat sehingga berdampak pada kesejahteraannya. Berdasarkan analisis keuntungan, kelompok mitra mendapatkan Rp. 3.568.000 dengan volume pemeliharaan 100 ekor ayam kampung sejak DOC sampai umur 4-5 bulan.
Teknologi Pembuatan Pellet Rendah Protein Untuk Budidaya Ayam Kampung Fase Grower Di Kelompok Tani Perempuan Sion Kefamenanu Lisnahan, Charles Venirius; Nahak, Oktovianus Rafael; Pardosi, Lukas
Bakti Cendana Vol 6 No 2 (2023): Bakti Cendana: Jurnal Pengabdian Masyarakat
Publisher : LPPM Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/bc.6.2.2023.129-139

Abstract

Tujuan teknologi pembuatan pakan ayam Kampung dalam bentuk pellet dengan memanfaatkan bahan pakan lokal rendah protein adalah untuk mengefisiensikan biaya pakan sumber protein yang relatif mahal seperti tepung ikan dan bungkil kedelai, dan untuk meningkatkan kesejahteraan Kelompok Tani Perempuan Sion Kefamenanu. Kegiatan ini adalah bagian dari aplikasi program Hibah Penelitian Terapan Berbasis Laboratorium LPPM Unimor tahun 2022. Metode yang digunakan adalah participatory action research, kelompok tani dan tim penelitian bersama menentukan kegiatan di lapangan berdasarkan masalah kemahalan pakan pabrikan (BR1 dan BR2). Solusi dalam mengatasi permasalahan tersebut meliputi kegiatan persiapan bahan dan alat-alat, dan eksekusi di lapangan. Kegiatan dilakukan dengan penyuluhan, pelatihan/pendampingan sekaligus praktek pelaksanaan kegiatan untuk meningkatkan ketrampilan dan kemampuan kelompok. Kegiatan meliputi Pemilihan dan pengadaan bahan pakan lokal yang baik, pengadaan bahan pakan mikro-nutrien seperti asam amino kritis dan vitamin premiks, pencampuran pakan komplit, pembuatan pellet dan penjemuran pellet dan pengepakan. Hasil yang dicapai adalah ketrampilan kelompok tani meningkat dengan memanfaatkan teknik pembuatan pellet dan terjadi efisiensi biaya pakan yang akan digunakan dalam budidaya ayam Kampung. Dari kegiatan ini, kelompok mitra dapat mengefisiensikan biaya pakan sebesar Rp. 3.000/kg dibandingkan dengan pakan yang dibeli dari poultry shop.
Effects of L-Isoleucine Supplementation in the Diet on the Growth Performance of Kampong Chicken at the Starter Phase (1-6 Weeks) Lisnahan, Charles Venirius; Pardosi, Lukas; Nahak, Oktovianus Rafael
Buletin Peternakan Vol 48, No 3 (2024): BULETIN PETERNAKAN VOL. 48 (3) AUGUST 2024
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v48i3.91596

Abstract

This study aimed to determine the effect of L-isoleucine supplementation in the diet on the growth performance of Kampong chickens at the starter phase (1-6 weeks). This study was conducted at Kefamenanu, East Nusa Tenggara Province, Indonesia, from May to June 2023. A total of two hundred and fifty-week-old Kampong chickens with an average initial weight of 59.03±0.52 g were used in the study. The chickens were divided into five treatments with five replications based on a completely randomized design. The diet treatments were: T0 (control feed); T1 (T0 + 0.20% L-isoleucine, NRC, 1994 for broilers); T2 (T0 + 0.30% L-isoleucine); T3 (T0 + 0.40% L-isoleucine); and T4 (T0 + 0.50% L-isoleucine). The parameters observed were body weight, weight gain, feed intake, feed conversion ratio, carcass weight, and carcass percentage. The data obtained were analyzed using variance analysis and the Duncan test. The study result showed that the groups T3 and T2 had the highest body weight (330.76±1.29; 334.48±1.47 g/bird, respectively). The highest weight gain was in group T2 (275.54±1.39 g/bird/5 weeks). Group T3 had the highest feed intake (613.15±5.79 g/bird/5 weeks) and the lowest feed conversion ratio (2.22±0.02). The highest carcass weight was in groups T2 and T3 (189.95±1.17 and 189.32±0.65 g/bird, respectively), while the highest carcass percentage was in group T2 (57.43±0.47 %/bird). The statistical analysis indicated that body weight, weight gain, feed conversion ratio, and carcass weight were affected by the level of L-isoleucine (p<0.05). In contrast, feed intake and carcass percentage were not significant. It was concluded that supplementation with 0.40% L-isoleucine to the diet of Kampong chicken resulted in optimal growth performance at the starter phase (1-6 weeks).
Co-Authors Agustinus Agung Dethan Aristo Kurniawan Sio Azor Yulianus Tefa Bira, Gerson Frans Gerson Frans Bira Hoar, Matilda Lisnahan, Charles V. Lukas Pardosi Paulus Klau Tahuk Paulus Klau Tahuk Seuk, Serlinda Seuk Wilda Lumban Tobing Yohanes Baptista Ambone