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All Journal MEDIA PETERNAKAN - Journal of Animal Science and Technology Jurnal Ilmu Pertanian Indonesia Buletin Peternakan Jurnal Sain Peternakan Indonesia JITRO (Jurnal Ilmiah dan Teknologi Peternakan Tropis) BERITA BIOLOGI Livestock and Animal Research Jurnal Obsesi: Jurnal Pendidikan Anak Usia Dini Jurnal Ilmu Keluarga dan Konsumen Buletin Ilmu Makanan Ternak Jurnal Ilmu Nutrisi dan Teknologi Pakan JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Ilmiah Edunomika (JIE) Jurnal Aisyah : Jurnal Ilmu Kesehatan Agrinimal Jurnal Ilmu Ternak dan Tanaman Indonesian Journal of Applied Research (IJAR) Conten : Computer and Network Technology Livestock and Animal Research Media Nusantara JOURNAL OF Mental Health Concerns International Journal of Educational Technology and Society Jurnal Agripet Animal Production Indonesian Journal of Forestry Research

Suharti, Sri

Department Of Nutrition And Feed Technology, Faculty Of Animal Science, Bogor Agricultural University

Author-ID : 2451428

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Isolasi Bakteri Pendegradasi Mimosin Asal Rumen Sapi dan Domba yang Diberi Daun Lamtoro dan Pengaruhnya Pada Karakteristik Fermentasi In Vitro Suharti, Sri; Alwi, Windawati; Wiryawan, Komang Gede
Sains Peternakan: Jurnal Penelitian Ilmu Peternakan Vol 18, No 1 (2020): Sains Peternakan
Publisher : Universitas Sebelas Maret (UNS)

Penelitian ini bertujuan untuk mengisolasi bakteri pendegradasi mimosin dari cairan rumen domba dan sapi yang diberi pakan mengandung daun lamtoro dan menganalisis pengaruh inokulasi bakteri pendegradasi mimosin pada karakteristik fermentasi rumen secara in vitro. Tahap pertama adalah isolasi bakteri pendegradasi mimosin dari cairan rumen domba yang diberi pakan mengandung daun lamtoro 30% dan dari rumen sapi Bali di Sumbawa yang diberi pakan daun lamtoro 100%. Tahap kedua adalah inokulasi bakteri pendegradasi mimosin pada fermentasi in vitro dengan substrat mengandung daun lamtoro. Rancangan yang digunakan pada percobaan in vitro adalah rancangan acak kelompok pola faktorial dengan 2 faktor. Pengelompokan berdasarkan waktu pengambilan cairan rumen. Faktor pertama terdiri dari 3 taraf daun lamtoro yaitu 0, 30, dan 60% dalam ransum. Faktor kedua terdiri dari 2 inokulasi pendegradasi mimosin yaitu dengan dan tanpa inokulasi bakteri pendegradasi mimosin. Peubah yang diamati adalah populasi bakteri dan protozoa, nilai pH, konsentrasi NH3, produksi volatile fatty acid (VFA), kecernaan bahan kering (KcBK) dan kecernaan bahan organik (KcBO). Hasil penelitian ditemukan 2 isolat bakteri pendegradasi mimosin dari rumen domba dan 3 isolat rumen sapi Bali. Kelima isolat tersebut mempunyai kemiripan dengan Streptococcus sp. Hasil uji in vitro menunjukkan tidak ada interaksi antara taraf pemberian daun lamtoro dengan inokulasi bakteri pendegradasi mimosin pada fermentasi rumen. Inokulasi bakteri pendegradasi mimosin dapat meningkatkan konsentrasi NH3 dan cenderung memperbaiki produksi VFA dibandingkan dengan perlakuan tanpa inokulasi bakteri. Nilai pH, KcBK dan KcBO tidak berbeda antar perlakuan. Kesimpulan yang dapat diambil adalah inokulasi bakteri pendegradasi mimosin dapat menstimulasi fermentasi rumen secara in vitro.

Fermentation Characteristics and Nitrogen Retention of Madura Cattle Fed Complete Rations Containing Soybean Pod and By-Products Komang Gede Wiryawan; Arief Saefudin; Asnath Maria Fuah; Rudi Priyanto; Lilis Khotijah; Sri Suharti
Media Peternakan Vol. 40 No. 1 (2017): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

This study was aimed to evaluate the effect of complete rations containing soybean pod and soybean by-products (soybean meal and tofu waste) on rumen microbial population, fermentation characteristics, nutrient digestibility, and nitrogen retention of Madura cattle. Twelve Madura cattle of 1.5 years of age were given 4 feeding treatments in triplicates in randomized block design experiment. The treatments included T0 (100% native grass) as a negative control, T1 (concentrate: grass (60:40) as a positive control, T2 (complete ration containing 15% soybean pods), and T3 (complete ration containing 30% soybean pods). The treatments were based on feeding practices commonly applied by farmers in the village. The results showed that the use of concentrate rations or complete rations containing soybean pod and by-product did not affect protozoa population, ammonia concentration, and total VFA production compared to cattle fed 100% native grass. In contrast, the use of concentrate rations or complete rations containing soybean pod and by-products reduced acetate and increased butyrate proportion compared to native grass. The use of a concentrate ration resulted the highest propionate proportion. Methane estimation increased with the use of concentrate ration or complete ration containing 15% soybean pod, but it decreased when the level of soybean pod was increased to 30%. It can be concluded that soybean pod has a potential to be used as a fiber source in beef cattle ration to substitute native grass.

Pemanfaatan bungkil biji jarak pagar (Jatropha curcas) terfermentasi sebagai pakan ayam kampung . Sumiati; Dewi Apri Astuti; Sri Suharti
Jurnal Ilmu Pertanian Indonesia Vol. 15 No. 2 (2010): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1020.999 KB)

Jatropha curcas"meal (JCM) is very potential as protein source for poultry. The JCM contained high crude protein, i.e. 56,4-63,8% (without hull) and 22,39-31,41% (hulled JCM). JCM serves as a highly nutritious and economic protein supplement in animal feed, if the toxins and antinutrients contained in the JCM are removed. The toxic compounds isolated from jatropha seed include curcin, phorbolesters, and the antinutrients include antitrypsins, tannin, saponin, phytic acid, and high fiber. The objective of this research was to evaluate the effect of feeding fermented JCM on the performances of kampong chickens. In this study, tempeh fungi (fungi using in fermenting soybean) used to ferment the JCM. Two hundred kampung chickens were used in this experiment and reared from day old up to 10 weeks of age. The data analyzed with a Completely Randomized Design with 5 treatment diets and 4 replications, with 10 birds in each replicate. The experimental diets were: TO (the control diet, without Jatropha curcas meal), T1 (the diet contained 5°/o untreated Jatropha curcas meal), T2 (the diet contained 5% fermented Jatropha curcas meal + cellulase 200 ml/ton of feed), T3 (the diet contained 5°/o fermented Jatropha curcas meal + 1000 FTU phytase), and T4 {the diet contained 5% fermented Jatropha curcas meal + cellulase 200 ml/ton + 1000 FTU phytase). The results showed that there were no significant difference on the parameters observed due to the treatments. Feeding fermented Jatropha curcas meal supplemented with cellulase+ phytase{T4) yielded the final body weight and feed conversion ratio similar to those the control {TO) diet. There was no mortality observed in all treatments. Using JCM 5% in the diet is safe for the kampong chickens.

Status Nutrisi Mineral Rusa Totol (Axis axis) di Lingkungan Istana Kepresidenan Bogor Rahmita Yulia Andini; Suryahadi Suryahadi; Sri Suharti
Jurnal Ilmu Pertanian Indonesia Vol. 27 No. 2 (2022): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.27.2.287

The study aimed to determine the effect of mineral status (Ca, P, Fe, Mn, Zn, Cu, and Pb) in soil, grass, and hair of spotted deer in the Bogor Presidential Palace. Fifteen male deer were randomly selected with an age of ± 2.5‒6 years. Soil was collected from ten points representing land, and grass samples were obtained by sampling from several points of the grazing area. Mineral content in soil, grass, and deer hair were analyzed using the atomic absorption spectrophotometry. The results showed that the level of Ca (0.03%) and P (0.016%) in the soil are deficient, Mn (1960 ppm), Zn (33.89 ppm), and Cu (77.23 ppm) are considered in the normal range, and Fe and Pb elements are high. Mineral levels of Ca, P, Cu, and Zn in grasses do not meet the daily requirements, whilst high levels of Fe and Mn minerals exceed the requirements for the spotted deer. The Pb content in grass is 0.94 ppm, which is within the normal limit. The levels of Ca (0.02%), Fe (308.11 ppm). and Mn (6.18 ppm) minerals in deer hair are high, however, zinc (44.68 ppm) and Cu (3.08 ppm) levels are low. High Pb level (14.38 ppm) is due to the long-term impact of Pb accumulation. Keywords: Bogor Palace, mineral status, Axis axis

Optimalisasi Penggunaan Level Sabun Kalsium Minyak Kedelai dalam Ransum Terhadap Karakteristik Fermentasi, Populasi Mikroba dan Kecernaan Nutrien Secara In Vitro Menggunakan Cairan Rumen Sapi Bali Ali Bain; Komang G. Wiryawan; Dewi Apri Astuti; Chairrusyuhur Arman; Sri Suharti
Jurnal Ilmu dan Teknologi Peternakan Tropis Vol 5, No 3 (2018): JITRO, September
Publisher : Universitas Halu Oleo

ABSTRAKPenelitian ini bertujuan untuk mengevaluasi optimalisasi penggunaan level sabun kalsium yang berbeda dalam ransum secara in vitro terhadap karakteristik fermentasi, populasi mikroba dan kecernaan nutrien ransum, menggunakan sumber inokulum cairan rumen sapi Bali. Penelitian dilaksanakan menggunakan rancangan acak kelompok dengan 4 jenis perlakuan dalam 3 ulangan. Ransum penelitian terdiri atas : R1, 40% rumput lapang (RL) + 60% konsentrat (K), R2 (40% RL + 60% K, mengandungn 2.5% SCa-kedelai), R3 (40% RL + 60% K, mengandung 5% SCa-kedelai), R4 (40% RL + 60% K, mengandung 7.5% SCa-kedelai). Variabel yang diukur terdiri atas karakteristik fermentasi in vitro (pH, N-NH3, produksi total volatile fatty acids), populasi mikroorganisme (total bakteri dan total protozoa), dan kecernaan nutrien (kecernaan bahan kering dan kecernaan bahan organik). Data dianalisis menggunakan analysis of varians (ANOVA) dan perbedaan antara perlakuan diuji dengan Duncan’s Multiple Range Test. Hasil penelitian menunjukkan, penambahan SCa-kedelai pada level yang berbeda dalam konsentrat tidak mempengaruhi pH, konsentrasi amonia, populasi mikroba, kecernaan bahan kering dan kecernaan bahan organik fermentasi tetapi berpengaruh sangat nyata (P<0.002) terhadap produksi total VFA. Produksi total VFA tertinggi diperoleh pada ransum perlakuan R4 (konsentrat yang mengandung 7.5% SCa-kedelai). Produksi total VFA tertinggi diperoleh pada perlakuan R4 dan produksi total VFA paling rendah terjadi pada perlakuan ransum R1 (kontrol). Produksi total VFA ransum R1 dan R2 dan ransum R2 dan R3 tidak berbeda nyata namun produksi total VFA ransum R3 lebih tinggi dibanding ransum kontrol. Penambahan SCa-kedelai dalam konsentrat menghasilkan produksi total VFA tetinggi namun mulai menekan populasi total bakteri. Mempertimbangkan hasil peubah fermentasi dan populasi mikroba serta biaya pembuatan produk sabun kalsium, SCa-kedelai pada level 5% merupakan level penggunaan SCa-kedelai yang terbaik dalam ransum.Kata kunci: sabun kalsium, fermentasi, in vitro, kecernaanABSTRACTThe study to evaluate the optimalization the different level of soybean oil calcium soap (CaS-soybean) in ration on in vitro fermentation using Bali cattle rumen fluid. The experiment was arranged in a complete randomized block design with 4 different ration treatments and 3 replicates. Ration treatments were R1: 40% native grass (NG) + 60% concentrate (C), R2 : 40% NG + 60% C, supplemented with 2.5% soybean oil calcium soap (CaS-soybean), and R3 (40% NG + 60% C, supplemented with 5.0% CaS-soybean and R4 (40% NG + 60% C, supplemented with 7.5% CaS-soybean). Variables measured were fermentation characteristics (pH, NH3-N, total volatile fatty acids), microbial population (total bacteria and total protozoa), and nutrient digestibility (dry matter and organic matter digestibility). Data were analyzed using analysis of variance (ANOVA) and the differences between treatments means were examined by Duncan Multiple Range Test. Results of the study showed that the four different level of CaS-soybean in ration did not have any significant effect (P>0,05) on pH, NH3-N, total bacteria, total protozoa, dry matter and organic matter digestibility. The treatments significantly increased (P<0.05) the production of total volatile fatty acids. The highest production of total VFA was obtained from ration R4 (concentrate containing 7.5% CaS-soybean) and the lowest was obtained from treatment R1 (control). There were no significant differences between R1 and R2, and between R2 and R3 on the total VFA production. However, the total productions of VFA in ration R3 were higher than that of the control ration. The addition of CaS-soybean in the concentrate had increased the total production of VFA, but at the same time, it began pressing the total population of bacteria. Considering the results of the fermentation variables and microbial population as well as the cost of making calcium soap products, CaS-soybean at 5% level was selected as the best level of CaS-soybean in ration.Keywords : calcium soap, fermentation, in vitro, digestibility

Pengaruh Penambahan Mikroenkapsulasi Minyak Kanola Terhadap Performa, Kecernaan Nutrien, dan Profil Asam Lemak Rumen Domba Vishara Sekar Fadhilah; I Komang Gede Wiryawan; Sri Suharti
Jurnal Ilmu dan Teknologi Peternakan Tropis Vol 6, No 3 (2019): JITRO, September
Publisher : Universitas Halu Oleo

ABSTRAK Penelitian ini bertujuan untuk menyelidiki pengaruh dari pemberian pakan yang mengandung mikroenkapsulasi minyak kanola pada konsumsi, kecernaan nutrien, dan performa pertumbuhan pada domba. Lima belas domba garut jantan dengan rataan bobot badan awal 20.17 ± 4.65 kg digunakan dalam rancangan acak kelompok (RAK) pada periode pemeliharaan selama 100 hari dengan 3 perlakuan dan 5 kelompok sebagai ulangan. Perlakuan yang digunakan adalah P0 (kontrol / hijauan: konsentrat = 60:40), P1 (P0 mengandung 4% minyak kanola), dan P2 (P0 mengandung 4% mikroenkapsulasi minyak kanola). Hasil yang diperoleh dalam penelitian ini menunjukkan bahwa tidak ada perbedaan untuk performa, konsumsi dan kecernaan nutrien. Suplementasi minyak kanola murni maupun terenkapsulasi sebagai sumber energi dalam ransum domba, menghasilkan pertambahan bobot badan harian (PBBH) dan efisiensi penggunaan pakan yang terbaik. Proporsi asam lemak tak jenuh pada perlakuan suplementasi mikroenkapsulasi minyak kanola 8% lebih tinggi dibandingkan dengan kontrol. Perlakuan minyak kanola murni meningkatkan (P<0.05) proporsi asam stearat (C18:0) dibandingkan perlakuan lainnya. Sehingga, dapat disimpulkan bahwa suplementasi 4% mikroenkapsulasi minyak kanola di dalam ransum, selaian menghasilkan PBBH dan efisiensi pakan terbaik juga mampu melindungi asam lemak tak jenuh (ALTJ) dari proses biohidrogenasi rumen tanpa mengganggu konsumsi dan kecernaan nutrient ransum.Kata kunci: konsumsi, kecernaan, mikroenkapsulasi, minyak kanola, performaABSTRACTThe aim of this study was to investigate the effects of feeding diets with microencapsulation of canola oil on intake, nutrient apparent digestibility, and growth performance of lambs. Fifteen male garut lambs with an initial average body weight of 20.17 ± 4.65 kg were used in a randomized block design (RBD) for a 100-days feeding period with 3 treatments and 5 groups as replication. The treatments were P0 (control/forage:concentrate = 60:40), P1 (P0 contained 4% of canola oil), and P2 (P0 contained 4% of microencapsulated canola oil). The results showed that there was no difference in the growth performance, intake, and digestibility of nutrients. The best of average daily gain (ADG) and feed efficiency results from the supplementation of pure canola oil or encapsulated canola oil in diets. The proportion of unsaturated fatty acids in the supplementation of microencapsulated canola oil treatment was 8% higher than control. The treatment of canola oil supplementation increased (P<0.05) the proportion of stearic acid (C18:0) compared to other treatments. Thus, it can be concluded that supplementation of 4% of microencapsulated canola oil, besides produced the best of ADG and feed efficiency, was also able to maintain unsaturated fatty acids from the rumen biohydrogenation process without detrimental effects on nutrient intake and digestibility in lambs. Keywords: canola oil, digestibility, intake, microencapsulation, performance

Karakteristik Fermentasi Rumen dan Keseimbangan Nitrogen Domba yang Diberi Minyak Kanola Murni dan Terenkaspulasi Mawar Mawar; Sri Suharti; I Komang Gede Wiryawan
Jurnal Ilmu dan Teknologi Peternakan Tropis Vol 6, No 3 (2019): JITRO, September
Publisher : Universitas Halu Oleo

ABSTRAK Penelitian ini bertujuan untuk menganalisis pengaruh minyak kanola tanpa proteksi dan terenkapsulasi pada karakteristik fermentasi rumen. di domba garut jantan. Penelitian menggunakan rancangan acak kelompok (RAK) dengan rancangan 3 perlakuan dan 5 kelompok sebagai ulangan. Perlakuan terdiri dari P0 (kontrol/pakan ternak:konsentrat = 60:40), P1: P0 (mengandung minyak kanola 4% dari total ransum); P2: P0 (mengandung mikroenkapsulasi minyak kanola 4% dari total ransum). Bahan pelapis yang digunakan dalam produk mikroenkapsulasi memiliki komposisi 50% maltodekstrin dan 50% gum arab. Data dianalisis menggunakan analisis sidik ragam. Hasil penelitian menunjukkan penambahan minyak kanola bebas maupun minyak kanola proteksi pada ransum sangat nyata (P<0,01) menurunkan populasi protozoa. Sintesis protein bakteri, NH3, retensi nitrogen, dan kadar BUN sangat nyata meningkat (P<0,01) pada pemberian minyak kanola bebas. Sementara penurunan terjadi pada pemberian minyak kanola terenkaspulasi dibandingkan kontrol. Namun, penambahan 4% minyak kanola bebas dan terenkapsulasi tidak signifikan mempengaruhi populasi bakteri total dan VFA. Dapat disimpulkan bahwa penambahan minyak kanola tanpa proteksi memberikan produksi NH3, BUN, dan SPM tertinggi di rumen serta minyak kanola dalam bentuk bebas dan terenkaspulasi mampu menurunkan pertumbuhan protozoa rumen yang merupakan predator bakteri tetapi tidak dapat menstimulasi pertumbuhan populasi bakteri rumen.Kata Kunci: mikroenkapsulasi, minyak kanola, rumen, spm, total bakteriABSTRACTThis experiment aimed to investigate the effects of unprotected and microencapsulated canola oil on rumen fermentation characteristics in Garut young rams. The design of experiment was using randomized block design (RBD) with 3 treatments and 5 groups as replication. The treatments were T0 (control/forage:concentrate = 60:40), T1 = T0 (Contain canola oil 4% total diet), T2 T0 (Contain microencapsulated canola oil (4% total diet). Coating materials composition used in microencapsulation were 50% maltodextrin and 50% arabic gum. The data were analyzed by using analysis of variance (ANOVA). The results showed that addition either protected or unprotected of canola oil on diet significantly (P<0.05) decreased rumen protozoa population. Microbial protein synthesis (MPS), NH3 nitrogen retention, and BUN were significantly (P<0.01) increased in unprotected canola oil meanwhile was decreased in the microencapsulated. Nonetheless, addition 4% of protected or unprotected canola oil did not significantly affect total bacterial population and VFA. It is concluded that addition of the unprotected canola oil gave the highest production of NH3, BUN, and MPS in rumen. In addition, the use of unprotected and microencapsulation of canola oil reduced the population of protozoa which are the predators of bacteria, but could not stimulate the growth population of rumen bacteria.Keywords: beef, diversification, development strategy, population

THE IMPORTANCE OF RUMEN ANAEROBIC FUNGI ON FIBER DEGRADATION IN RUMINANTS: REVIEW Sinta Agustina; I Komang Gede Wiryawan; Sri Suharti
BERITA BIOLOGI Vol 19, No 3A (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i3A.3853

Forage is a feed source for ruminant livestock, but one of the limiting factors of forage is high content of fiber in old forage plants. The fiber content in forage can only be degraded by rumen microbes. One of the rumen microbes that has fiber degrading activity is rumen anaerobic fungi because it can produce very active enzymes to degrade lignocellulose. The rumen anaerobic fungi are divided into several genera which are grouped base on the number of flagella in zoospores, thallus morphology and rhizoid type. The presence of fungi in the rumen is very important because fungi can form rhizoid which will penetrate the feed particles and degrade plant cell walls physically and chemically. In addition, fungi can produce fiber degrading enzymes such as cellulase, hemicellulase, pectinase, and lignocellulase which can increase feed digestibility. However, in Indonesia there is not much study of the potential for rumen anaerobic fungi, so the aims of this review paper is to discuss the potential of anaerobic fungi rumen in improving fiber digestibility in livestock.

Nutrient Intake and Digestibility of Beef Cattle Fed with Ration Containing Soybean Pod Arief Saepudin; Lilis Khotijah; Sri Suharti
Buletin Ilmu Makanan Ternak Vol. 14 No. 1 (2016): Buletin Makanan Ternak
Publisher : Buletin Ilmu Makanan Ternak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (545.169 KB)

Soybean pod are potential as feed sources for beef cattle. They contain 5.5% crude protein, 35.4% crude fiber, acid detergent fiber 51.4%, and 12.9% lignin. The aims of this study was to analyze the optimal level of soybean pod utilization as Madura cattle ration and to asses its effect on intake and digestibility of nutrients. The study used 12 heads Madura cattle and kept in the individual cage for 90 days. The study used randomized complete block design with 4 treatments and 3 replications. The treatments were T0: grass only (negative control), T1: grass + concentrate with ratio 40:60 (positive control), T2: complete ration of 15% soybean pod, T3: complete ration of 30% soybean pod. Parameter observed were nutrient intake and digestibility. The results showed that the use of soybean pod up to 30% in ration significantly increased (P<0.05) nutrients intake and digestibility compared to the control ration (grass only) and similar with the used of grass + concentrate ration (positive control). In conclusion, soybean pod have potency as feed sources and the use of soybean up to 30% in the complete ration have positive effect on intake and digestibility of nutrients.

EVALUASI PEMBERIAN PAKAN PADA ITIK DENGAN SISTEM PEMELIHARAAN INTENSIF DAN SEMI INTENSIF DI PETERNAKAN RAKYAT (The study of duck feeding management kept under intensive and semi intensive systems by smallholder farmer) Bonitha Gustin Tumanggor; dwi margi suci; Sri Suharti
Buletin Ilmu Makanan Ternak Vol. 15 No. 1 (2017): Buletin Makanan Ternak
Publisher : Buletin Ilmu Makanan Ternak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.296 KB)

This experiments aims to study the effect of feeding duck management with extensive and semi intensive system for feed quality, eggs quality and egg production. This experiments used one hundred ducks (intensive) and one hundred ducks semi intensive (fifty ducks in rice field, fifty ducks in the river) that twelve month old. This experiments was conducted in duck raising in Ciherang Village, Bogor Regency. The variables measured were content of nutrient ration, eggs production and quality of eggs. Production and quality of eggs were analyzed using Anova. The results showed that intensive system used commercial ration contained 9.85% moisture, 12.89 % crude protein, 9.94% crude fiber, 2.87% fat, 4.35% Ca, and 0.20% P while semi intensive system of duck used commercial ration plus feed from rice field like grain of rice, grass, and unknown material with contained 9.56% moisture, 12.03% crude protein, 10.66% crude fiber, 2.93% fat, 4.41%, Ca and 0.16% P and feed from the river like snails, small crabs, sand, and small stones which contained 9:99 % moisture, 11.76 % crude protein, 11.81% crude fiber, 3.03 % fat, 4:57% Ca, 0:18% P. The system of duck raising did not significantly different for quality of eggs. Production and yolk colour score of egg in semi intensive system (in rice field) higher than intensive system P<0.05).

Co-Authors . Sumiati Adeliza, Muhammad Farhan Hilmy Ahmad Muhammad Ryad Saiful Hakim Alwi, Windawati Amanda, Ridha Aini Andi Tarigan Annitsa Shofiyana Anuraga Jayanegara Apriliana, Tri Wahyu Arief Saepudin Arif Saefudin Asep Abidin Asep Sudarman Asnath Maria Fuah, Asnath Maria Bonitha Gustin Tumanggor Chairrusyuhur Arman Danellie C. Llamas Daulay, Kausar DEWI APRI ASTUTI Dian Novita Didid Diapari Dona Octavia Dwi Margi Suci Dwierra Evvyernie Edi Kurniawan Fibriyanita, Fika Firkani, Rahmatiana Widi Fransisca Natalia Gusri Yanti Hera Dwi Triani Heriyanto Heriyanto Hesti Lestari Tata, Hesti Lestari hudjolly, Hudjolly Husnul Khotimah I Komang Gede Wiryawan I Wayan Susi Dharmawan Idat Galih Permana Ikhsan Qodri Pramartaa Imelda Hutabarat Indah Novita Dewi Infitria, Infitria Irmanida Batubara Karoma, Karoma Khomsah, Ida Yatun Kokom Komalasari Komang G. Wiryawan Komang G. Wiryawan Lilis Khotijah Mareistia Fassah, Dilla Marliyana Marliyana, Marliyana Mawar Mawar Meti Ekayani Mulyadi Eko Purnomo, Mulyadi Eko Nahrowi Nahrowi Nanda Nadhifa Nuraini Nani Purwati Natsir Sandiah Noor, Riska Aulia Nur Hayati Nur Rochmah Kumalasari Nurani, Rahmawati Dian Nurheni Wijayanto Panca Dewi Manu Hara Karti Pangesti, Dimas Ning PRASETYAWATI, C. ANDRIYANI Putri, Dini Andani Rachmat, Henti Hendalastuti Rahmita Yulia Andini Rakhmad Perkasa Harahap Ramadhani, Rizka Ramadhita, Airana Nafira Retno Budi Lestari Rosmalia, Annisa Rudi Priyanto Sakti, Tri Yuda Shofiah, Maya Sinta Agustina Sri Kiswati Sri Wilarso Budi Sunardi Sunardi Suryahadi (Suryahadi) Syamsiyah, Dzorifatus Vishara Sekar Fadhilah Windyoningrum, Ayun wulan, Sarinah sri Wulansih Dwi Astuti Yetti Marlida Yuliantoro, Isdomo Yunitasari, Eva Zahra, Windi Al

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