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Study Of Fermentation Of Lemongrass Waste (Cymbopogon Nardus), Rice Bran And Corn Fraction With Pleurotus Ostreatus On Fiber Fraction And Digestion Of Dry Matter, Organic Matter, And Crude Protein, Yuliaty Nur, Arfa`I Arfa`I

Jurnal Ilmu Ternak Universitas Padjadjaran

Lemongrass waste can be used as an alternative feed to replace grass for ruminant livestock, but it has a high crude fiber content. Therefore, it is necessary to handle and process lemongrass waste. This study examines the effect of inoculum dose and fermentation time of lemongrass waste (Cymbopogon nardus) with Pleurotus ostreatus on fiber fraction, dry matter digestibility, organic matter, crude protein. The research method is a randomized block design consisting of 6 treatments of lemongrass waste with rice bran and corn shards and 3 replications as a group. The inoculum dose is 6%, 9% and 12% and …

Eco-Friendly Feed Migration: Quality Of Local Broiler Finisher Pellets With Natural Adhesives, Desy Widianingrum, Ahmad Zamzami, Roni Yulianto, Nur Widodo

Jurnal Ilmu Ternak Universitas Padjadjaran

Penggunaan bahan pengikat sintetik pada pakan pelet dianggap mahal, sehingga mendorong pencarian alternatif yang lebih ekonomis dan mudah didapat dari sumber alami yang melimpah di Indonesia. Tepung sagu, tepung tapioka, dan molase diidentifikasi sebagai bahan alami yang kaya akan pati dan energi. Penelitian ini bertujuan untuk mengevaluasi kualitas pakan pelet dengan menggunakan bahan pengikat yang berbeda berdasarkan sifat fisik dan nilai gizinya. Rancangan Acak Lengkap (RAL) dengan empat perlakuan: PO: Pelet broiler finisher komersial, P1: Ransum broiler finisher + tepung tapioka 2%, P2: Ransum broiler finisher+ 2% molase, dan P3: Ransum broiler finisher+ 2% tepung sagu , masing-masing dengan 10 …

Physico-Chemical And Energy Properties Of Biomass Briquettes Composed From Dairy Cow Feces And Coffee Ground With Tapioca Flour Addition, Alya Rahmaisyanti, Ahmad Sofyan, Marina Sulistyati, Yuli Astuti Hidayati

Jurnal Ilmu Ternak Universitas Padjadjaran

Cow feces is the rest of the digestive process of the livestock body, while coffee grounds are the rest of coffee brewing, and both are organic materials with fixed carbon that can be utilized as fuel. The purpose of this study was to determine the effect of the addition of coffee grounds in processing dairy cow feces into briquettes on physical properties (color, texture, density), chemical properties (moisture content, ash content, volatile matter, and fixed carbon), and energy value (calorific value, temperature, flame duration). This research method is experimental, with four treatments, each consisting of five repetitions. The treatments in …

Optimizing Broiler Chickens Performance With Boiled Sunflower (Helianthus Annuus) Seed Meal-Based Diets: A Sustainable Solution, A. Saleh, I. Suleiman, H. Muhammad, Z. Dankoli

Jurnal Ilmu Ternak Universitas Padjadjaran

The research explored the use of boiled sunflower seed meal (BSSM) as sustainable feed alternative for broiler chickens, evaluating its impact on their growth and development thereby reducing the industry’s reliance on resource-intensive feed ingredients. One hundred and fifty unsexed Ross broiler chicks were used for the study. The experiment was laid in a completely randomized design (CRD) in which BSSM were incorporated in the diets at 0, 10, 20, 30 and 40%, coded as Treatments 1, 2, 3, 4, and 5, respectively. Each treatment comprised of 3 replicates of 10 birds. Birds were housed in floor pens containing wood …

The Effect Of Additioning Microencapsulation Products Of Noni Fruit Extract (Morinda Citrifolia Linn) In The Ration On The Performance Of Developer Phase Sentul Chickens, Faisal Tanjung, Tuti Widyastuti, Wiwin Tanwiriah

Jurnal Ilmu Ternak Universitas Padjadjaran

This study aims to determine the effect of adding microencapsulated noni fruit extract (MEBM) to the feed on the feed consumption, body weight gain, feed conversion, and sexual maturity age of Sentul phase developer chickens. The research was conducted from July to September 2023 at the Test Farm of the Faculty of Animal Husbandry Padjadjaran University. The research method used a Completely Randomized Design (CRD). There were five types of treatments, namely, P0 = basal ration without the addition of MEBM, P1 = basal ration + 50 mg/kg zinc bacitracin, P2 = basal ration + 75 mg/kg MEBM, P3 = …

Adding Green And Black Teas In A Rice Straw-Based Sheep Diet Improves In Vitro Dry Matter Degradability Without Affecting Gas Production And Ph, Diky Ramdani, Abdul Chaudhry

Jurnal Ilmu Ternak Universitas Padjadjaran

Rice straw (RS) is widely available in South East Asia and it can be used as a source of fibres for ruminant animals. However, RS has poor palatability and nutritional values. Thus, the use of concentrate (CON) as a dietary supplement is required to increase the utilisation of RS. Green (GT) and black (BT) teas can act as natural dietary additives in a CON. This study evaluated nutrient compositions of the diet ingredients and the impact of supplementing GT and BT in a rice straw-based sheep diet on in vitro dry matter degradability (IVDMD), total gas production (TGP) and pH …

The Effect Of Closed House Cage Density On Microclimate Of Broiler Chickens, Jajat Zakaria, Nabila Rifianda, Tuti Widjastuti, Mansyur Mansyur

Jurnal Ilmu Ternak Universitas Padjadjaran

The microclimate in the cage plays an important role in broiler productivity. Productivity is influenced by a good environment so that production will be maximized. The research was conducted in March-April 2023 in Pinggirsari Village, Arjasari District, Bandung Regency. The samples used were 52,500 broiler chickens of the Cobb CP 707 strain aged 0-32 days whose temperature, humidity, CO₂ levels and NH₃ levels in the cage were calculated. The cage used in this research is a closed house cage measuring 12x90 m divided into 6 partitions measuring 12 x 15 m, with each partition equipped with a feeding …

Correlation Between Socio Economic Characteristic And Entrepreneur’S Motivation Of Dairy Goat Farmers With Dairy Goat Business Sustainability, Lilis Nurlina, Hasni Arief, Unang Yunasaf, Marina Sulistyati

Jurnal Ilmu Ternak Universitas Padjadjaran

ABSTRACT

The aim of this research were to study : (1) socio economic characteristic of dairy goat farmers; (2) entrepreneur’s motivation of dairy goat farmers; (3) dairy goat sustainability business; (4) dairy goat farmer’s strategy to business sustainability; ( (5) correlation between socio economic characteristic and entrepreuneur motivation farmer with dairy goat business sustainability. The research used mix method, there were quantitative and qualitative approach. Respondents of this research were 15 dairy goat farmers, that are variants from small scale business, medium and big scale. The result of this research showed that : (1) characteristic socio economic of dairy goat …

Identification Of Worm Parasites In Beef Cattle Feces In The Village Nangka Bay, Kubu Raya District, Yeti Rohayeti, Dela Heraini, Imam Subhi

Jurnal Ilmu Ternak Universitas Padjadjaran

Beef cattle are meat-producing cattle used for fulfilling and improving people's nutrition. The increase in the beef cattle population in Indonesia has not fully met the demand for meat nationally due to the low productivity of local livestock. Low livestock productivity can occur due to livestock health factors, one of them being caused by worm parasites infection. This disease causes economic loss, resulting in lower growth and weight gain, and can lead to death. A qualitative examination, stool test is needed for a qualitative examination to identify gastrointestinal parasites in livestock, especially the type and degree of infection. This study …

Study Of The Implementation Of Health Management For Pig Breeding In Cv Roku, Manggarai, East Nusa Tenggara, Korbinianus Rinca, Roselin Gultom, Maria Luju, Yohana Febrizki Bollyn

Jurnal Ilmu Ternak Universitas Padjadjaran

The application of health management is a determining factor for the success of a pig farm business. This research was conducted to find out the implementation of pig health management in CV. Roku, Manggarai, East Nusa Tenggara. The data used in this research was secondary data. The secondary data was reconfirmed to the owner using the direct interview method using questionnaires. Secondary data that has been confirmed using the interview method, was then analyzed descriptively. The practice of health management studied was the application of medication, biosecurity, and vaccination to gilts, sows, and piglets. The results of the study showed …

Differences In Characteristics And Income Of Duck Farming In Sukra And Sindang Districts, Indramayu Regency, Linda Herlina, Cecep Firmansyah, Khansa Salsabilah

Jurnal Ilmu Ternak Universitas Padjadjaran

Abstract

Duck is one of the commodities breeders rely on in Indramayu Regency as a source of income to support the farmer's family expenses. Two areas became the basis for providing duck products in Indramayu Regency: Sukra District and Sindang District. The purpose of this study was to determine the difference in the average characteristics of the breeder's variables consisting of livestock experience, age, number of family members out of the farmer, distance to marketing centers, farmer expenses, duck farming costs, duck farming revenue, and farmer income (per head per year). The method used was a survey with 100 farmers …

Edible Coating Chitosan As An Antimicrobial In The Thawing Process Of Frozen Broiler Chicken Carcasses With Different Shelf Life, Yusni Tampubolon, Zakiyah Nasution, Erin Alawiyah

Jurnal Ilmu Ternak Universitas Padjadjaran

This study aims to determine the amount of chitosan edible coating concentration best used as antimicrobial during the thawing process of frozen broiler chicken carcass in different shelf lives. This study used a completely randomized factorial design (RALF) which consisted of two factors, namely factor 1: differences in shelf life (1, 2, and 3 months) and factor 2: concentration of chitosan edible coating (0.1 %, 1.5%) with 12 treatments and five replications. The total microbial count, pH, percentage of drip loss, and cooking losses of each sample were evaluated. The obtained data were analyzed using Two Way Analysis of …

Ekstrak Asam Kandis (Garcinia Xanthochymus) Sebagai Alternatif Growth Promotor Pada Ayam Broiler, Tania Adila, Aenyfatchu Rohmah, Nurul Shoimah, Widya Hermana

Jurnal Ilmu Ternak Universitas Padjadjaran

Ayam broiler merupakan salah satu sumber protein hewani yang digemari masyarakat Indonesia. Para peternak pun berupaya meningkatkan produktivitas ayam broiler misalnya dengan imbuhan pakan antibiotic growth promotor (AGP). AGP digunakan sebagai pemacu pertumbuhan ternak, meningkatkan ketersediaan lemak dan protein ayam, serta meningkatkan efisiensi pakan. Namun AGP dalam pakan sudah dilarang penggunaannya, sehingga perlu adanya alternatif imbuhan pakan seperti acidifier. Acidifier ini dapat mengontrol mikroflora dalam pencernaan. Acidifier yang umum digunakan yaitu asam sitrat. Hidroksisitrat (HCA) merupakan turunan dari asam sitrat dan telah ditemukan sebagai asam utama dalam asam kandis (Garcinia xanthochymus). Penelitian yang dilakukan pada bulan Agustus-Oktober 2020 …

Pengaruh Pemaparan Gas Ozon Terhadap Kadar Air, Lignin, Selulosa Dan Hemiselulosa Pada Azolla Pinnata, Ari Moris, Muhammad Nur, Hendi Setyatwan, Iwan Setiawan

Jurnal Ilmu Ternak Universitas Padjadjaran

Azolla pinnata memiliki protein berkisar antara 25%-30% sehingga berpotensi dijadikan bahan pakan untuk ruminansia, unggas maupun ikan. Kandungan serat kasar yang cukup tinggi mencapai 20% menjadi penghambat kecernaan nutrien. Gas ozon dikenal sebagai senyawa oksidatif yang dan mampu mengurai struktur lignin menjadi asam maleat dan asam oksalat. Penelitian ini bertujuan untuk mengetahui pengaruh pemaparan gas ozon terhadap kadar air, lignin, selulosa dan hemiselulosa pada Azolla pinnata. Penelitian dilakukan secara eksperimental menggunakan rancangan acak lengkap dengan 5 perlakuan dan 4 ulangan. Parameter yang diukur adalah kadar air, lignin, selulosa dan hemiselulosa. Perlakuan ozon yang digunakan adalah durasi pemaparan 0 menit …

Penggunaan Tepung Terigu Dan Tepung Tapioka Pada Nugget Hati Ayam Dan Nugget Hati Sapi, Dedes Amertaningtyas, Salsabila Gusmaryani, Nadhira Fasha, Herly Evanuarini

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian tentang penggunaan tepung terigu dan tepung tapioka pada nugget hati ayam dan hati sapi bertujuan untuk mengetahui kualitas nugget hati ditinjau dari kadar lemak, energi, kolesterol, vitamin A, kadar karbohidrat dan mutu organoleptik. Metode penelitian yang digunakan adalah metode eksperimental menggunakan Rancangan Acak Kelompok (RAK) Pola Tersarang dengan perlakuan 2 jenis hati dan 2 jenis tepung yang tersarang pada jenis hati. Hasil penelitian menunjukkan bahwa kandungan lemak tertinggi terdapat pada nugget hati ayam dengan penggunaan tepung terigu sebesar 17,73%, sedangkan yang paling rendah adalah nugget hati sapi dengan penggunaan tepung tapioka sebesar 16,07%. Perlakuan tersebut menghasilkan nilai energi 3,451,00 …

Hubungan Konsumsi Protein Kasar Terhadap Total Protein Darah Dan Kandungan Protein Susu Kambing Peranakan Ettawa (Pe), Imelda Siska, Yoshi Lia Anggrayni1

Jurnal Ilmu Ternak Universitas Padjadjaran

Tujuan dari penelitian adalah untuk melihat berapa konsumsi protein kasar dari pakan, kadar protein dari darah dan kandungan protein dalam susu serta keeratan hubungan antara ketiganya. Penelitian telah dilakukan pada peternakan Kambing Peranakan Ettawa PT. Boncah Utama Farm pada tanggal 1 November sampai dengan 15 Desember 2020. Penelitian ini menggunakan metode eksperimen dengan jumlah 20 ekor kambing Peranakan Ettawa laktasi. Data konsumsi protein diambil setiap hari dari konsumsi pakan ternak. Analisis darah dan protein susu dilakukan tiga kali, yaitu awal penelitian, pertengahan dan akhir penelitian. Data yang didapat dianalisis secara deskriptif, hubungan keeratan model dengan korelasi dan persamaan hubungan dengan …

Pengaruh Penambahan Probiotik Heryaki Dalam Ransum Terhadap Performa Produksi Dan Kolesterol Telur Puyuh Padjadjaran, Ilham Effendi, Iwan Setiawan, Hery Supratman

Jurnal Ilmu Ternak Universitas Padjadjaran

Penggunaan probiotik Heryaki dalam penelitian ini bertujuan mengetahui pengaruhnya dalam performa produksi dan kadar kolesterol telur puyuh Padjadjaran. Penelitian dilakukan secara eksperimental dengan enam perlakuan dengan empat kali ulangan dan setiap ulangan terdapat 7 ekor puyuh. Perlakuan diberikan dengan P₀ = pakan 100% (full feed) tanpa penambahan probiotik, P₁ = pakan 100% (full feed) + 0,1% probiotik, P₂ = pakan 100% (full feed) + 0,2% probiotik, P₃ = pakan 80% dari full feed tanpa penambahan probiotik, P₄ = pakan 80% dari full feed + 0,1% probiotik, P₅ = pakan …

Potential Of Banana Plant Waste As Animal Feed, Yanuartono Yanuartono, Alfarisa Nururrozi, Indarjulianto Soedarmanto, Dhasia Ramandani

Jurnal Ilmu Ternak Universitas Padjadjaran

Abstract

The availability of forage feed is one of the factors that greatly influences the success of ruminant livestock businesses. However, forage will be difficult to obtain during the dry season so that feed is generally replaced from various agricultural wastes such as rice straw, stover or corn straw and other crop wastes. At present the use of banana plant waste as animal feed varies greatly from each banana producing country. Banana by-products such as leaves, young plants, rejected fruit and stems can be used as a source of ruminant animal feed. Although the volume of banana plant waste is …

Potensi Disinfektan Sebagai Sediaan Kebiri Kimiawi Pada Ternak, Lena Indraswari, Siti Sa’Diah, Mokhamad Ulum

Jurnal Ilmu Ternak Universitas Padjadjaran

Kastrasi kimiawi dapat digunakan sebagai alternatif dari kastrasi terbuka. Tujuan dari penelitian ini untuk menguji potensi bahan kimia disinfektan sebagai sediaan bahan kimia untuk kastrasi pada mencit. Penelitian ini menggunakan zat aktif disinfektan sebagai material kastrasi kimiawi pada mencit. Mencit dibagi menjadi 7 kelompok: kloroxylenol 4,8% (C4, n=4), povidon iodin 10% (P10, n=4), kloroxylenol 2,4% dan povidon iodin 5% (C2P5, n=4), kloroxylenol 1,2% dan povidon iodin 2,5% (C1P2, n=4), sodium hipoklorit (N5, n=4), NaCl 0.9% (N, n=4), dan akuadestilata (A, n=3). Disinfektan sebanyak 0,2 mL diinjeksi pada masing-masing testis pada setiap kelompok. Daya hidup mencit setelah kastrasi kimiawi pada kelompok …

Profil Eritrosit Ayam Broiler Yang Diberi Pakan Kombinasi Tepung Daun Kelor (Moringa Olifiera) Dan Onggok Yang Difermentasi Dengan Chrysonilia Crassa, Ahnan Afifudin, Isroli, Endang Widiastuti

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pakan fermentasi onggok dan tepung daun kelor (Moringa oleifera) menggunakan Chrysonilia crassa terhadap profil eritrosit ayam broiler. Penelitian ini menggunakan 200 ekor ayam broiler strain Lohman dengan bobot awal rata-rata 46,28 ± 0,86 gram. Pakan disusun dari bahan-bahan yang diramu menjadi pakan basal yang mengandung PK 20-22% dan EM 2900-3000 kal/g. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 5 ulangan. Ransum perlakuan berupa T1 (Pakan Basal), T2 (Pakan Basal + Antibiotik 0,1%), T3 (Pakan Basal + Onggok fermentasi 20%) dan T4 (Pakan Basal + Onggok …

Traditional Methods Of Processing Livestock Feed To Reduce Antinutrient Factor Content: A Brief Review, Yanuartono, Alfarisa Nururrozi, Soedarmanto Indarjulianto, Hary Purnamaningsih

Jurnal Ilmu Ternak Universitas Padjadjaran

Anti-nutrients or anti-nutritional factors may be defined as those substances generated in natural feedstuffs by the normal metabolism of species and by different mechanisms. Anti-nutritonal factors are substances which either by themselves or through their metabolic products, interfere with feed utilization and affect the health and production of animal or which act to reduce nutrient intake, digestion, absorption and utilization and may produce other adverse effects Removal of undesirable components is essential to improve the nutritional quality of livestock feed and effectively utilize their full potential as ruminants feed ingredient. It is widely accepted traditionally methods that simple and inexpensive …

Kurva Produksi Telur Di Awal Masa Peneluran Pada Puyuh Yang Diberi Ransum Dengan Kandungan Protein Berbeda, Adi Ratriyanto, Brian Hidayat, Nuzul Widyas, Sigit Prastowo

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian bertujuan untuk mengkaji pola produksi dan aplikasi model regresi logistik produksi telur puyuh yang diberi ransum dengan level protein berbeda. Sebanyak 225 ekor puyuh didistribusikan dalam 3 perlakuan dan 5 ulangan; jumlah puyuh masing-masing ulangan 15 ekor. Perlakuan yang diberikan adalah level protein kasar (PK) dalam ransum sebesar 16,5% (P1), 18% (P2) dan 19,5% (P3). Data produksi telur diambil sejak awal peneluran pada masa adaptasi dan selama dua periode produksi telur (2×28 hari) pada masa perlakuan. Data dianalisis menggunakan program R. Perlakuan P2 dan P3 menghasilkan produksi telur yang lebih tinggi daripada P1 (P<0.05). Model logistik produksi telur puyuh menunjukkan bahwa puncak produksi tertinggi dicapai oleh P3 sedangkan rentang dan laju produksi terbesar dicapai P1. Data aktual produksi telur memiliki kesesuaian (fitness) yang tinggi (R …

Kandungan Lignin, Selulosa Dan Bahan Ekstrak Tanpa Nitrogen L.Minor Hasil Fermentasi Menggunakan Trichoderma Harzianum Dan Saccharomyces Cerevisiae, Hendi Setiyatwan, E. Harlia, D. Rusmana

Jurnal Ilmu Ternak Universitas Padjadjaran

Latar Belakang dan Tujuan: L. minor telah digunakan sebagai pakan ternak, mengandung nutrient sangat lengkap yaitu protein kasar (22,4%), asam amino lisin (6,9%), metionin (1,4%), dan histidin (2,7%) tetapi kandungan serat kasar (10,16%) dan lignin (17,98%) tinggi. Penggunaan L. minor pada unggas dibatasi hingga 5%. Tujuan dari penelitian ini adalah untuk mendapatkan kandungan lignin, selulosa paling rendah dan bahan ekstrak tanpa nitrogen paling tinggi L. minor hasil fermentasi dengan menggunakan Trichoderma harzianum (Th) dan Saccharomyces cerevisiae (Sc). Bahan dan Metode: Fermentasi L. minor dibagi menjadi dua tahap: I. Th (3 x 10⁷ spora / 100 gram substrat) dengan menambahkan …

Pengaruh Penggunaan Limbah Sayuran Dalam Ransum Terhadap Performa Produksi Itik Petelur, Emy Saelan, A. Nurdin

Jurnal Ilmu Ternak Universitas Padjadjaran

The waste vegetables ration the effect to the performance production have been done in cage experiment of Poultry Production Farm in Agriculture Studi Programs Khairun University, Ternate, Maluku Utara. An exsperiment using laying ducks padjadjaran age 46 weeks as 64 ducks. The research used to Completely Randomized Design (CRD) with 4 treatments and 4 replications of, R0 (100% control rations); R1 (5% waste vegetables + 95% control rations); R2 (10% waste vegetables + 90% control rations); and R3 (15% waste vegetables + 85% control rations); and to see the effect of trend pattern of each treatment was done by orthogonal …

Pengaruh Penggunaan Kombinasi Enzim Papain Dan Jus Lemon Sebagai Koagulan Terhadap Kadar Air, Berat Rendemen, Dan Nilai Kesukaan Fresh Cheese, Bayu Sulistyo, Hartati Chairunnisa, Eka Wulandari

Jurnal Ilmu Ternak Universitas Padjadjaran

Tujuan penelitian ini adalah untuk mengetahui pengaruh penggunaan kombinasi enzim papain dan jus lemon sebagai koagulan pada pembuatan fresh cheese terhadap kadar air, berat rendemen, dan nilai kesukaan yang meliputi tekstur, rasa, warna, dan total penerimaan; serta menentukan fresh cheese yang paling disukai. Penelitian dilakukan berdasarkan Rancangan Acak Lengkap (RAL) yang terdiri dari tiga perlakuan kombinasi enzim papain dengan konsentrasi tetap (0,1%) dan jus lemon dengan tiga tingkat konsentrasi 3%, 4%, dan 5%, dengan ulangan enam kali. Hasil penelitian menunjukkan bahwa kombinasi enzim papain pada konsentrasi tetap (0,1%) dengan konsentrasi jus lemon sampai 5% pada pembuatan fresh cheese berpengaruh berbeda …

Kualitas Semen Segar Sapi Bali (Bos Javanicus) Pada Kelompok Umur Yang Berbeda, Sigit Prastowo, Pipin Dharmawan, Tristianto Nugroho, Aris Bachtiar

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini bertujuan untuk mengetahui kualitas semen segar sapi Bali pada kelompok umur yang berbeda. Sampel yang digunakan berupa semen segar dari 8 pejantan sapi Bali di Balai Besar Inseminasi Buatan (BBIB) Singosari Malang, Jawa Timur, terbagi menjadi 2 kelompok umur yaitu 4 dan 7 tahun. Rata-rata bobot badan sapi pada kelompok umur 4 tahun adalah 656,75±32,69 Kg, dan lingkar skrotum 27,5±1,64 cm sedangkan pada kelompok umur 7 tahun adalah 615,5±72,59 Kg dan 27,93±0,74 cm. Kualitas semen segar diamati dari 10 kali penampungan menggunakan vagina buatan. Parameter yang diamati meliputi volume (ml), pH, konsentrasi (x10⁶/ml), motilitas (%), persentase …

Penyusutan Dan Penurunan Nisbah C/N Pada Vermicomposting Campuran Feses Sapi Perah Dan Jerami Padi Menggunakan Eisenia Fetida, Eulis Tanti Marlina, Tb. Benito A. Kurnani, Yuli Astuti Hidayati, Deden Badruzzaman

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini bertujuan untuk mengetahui tingkat penyusutan dan penurunan nisbah C/N padavermicompostingcampuran feses sapi perah dan jerami padi menggunakan Eisenia fetida. Penelitian dilaksanakan dengan menggunakan metode Rancangan Acak Lengkap (RAL). Perlakuan yang diberikan adalah tiga perlakuan nisbah C/N yakni : 25 (T₁), 30 (T2), dan 35 (T₃). Proses diawali dengan dekomposisi awal selama 7 hari, kemudian dilanjutkan dengan vermicompostingselama 15 hari. Data dianalisis melalui sidik ragam dan untuk mengetahui perbedaan antar perlakuan dilakukan uji Duncan. Hasil penelitian menunjukkan bahwa : (1) Penyusutan selama dekomposisi awal berkisar antara 20,5 – 28,8 % dengan …

Identification Of Heavy Metal Plumbum (Pb) In Edible Offal, Ellin Harlia, Roostita L.Balia, Denny Suryanto

Jurnal Ilmu Ternak Universitas Padjadjaran

Plumbum (Pb) is a heavy metal that its presence is undesirable because it can lead to the formation of residues in animal or human body which cause health problems. Pb source can be derived from disinfectant, bedding materials, corrosion equipment, paint, animal feed, water and soil. Livestock farming is difficult to avoid Pb contamination, so it is important to do research on the identification of Pb in edible animal offal (pig liver, beef cattle tripe and lamb kidney). This research is an exploratory study on 12 samples of pig liver, 12 samples of beef cattle tripe and 12 samples of …

Evolutionary Mechanisms Of Nanopores And Adsorption Capacity In Shales Under Scco2-Water-Rock Interactions, Feng Guangjun, Wang Meng, Zhu Yanming, Song Yu, Dai Xuguang, Zheng Sijian, Xie Hong, Shang Fuhua

Coal Geology & Exploration

Background Supercritical carbon dioxide (ScCO₂ )-enhanced shale oil and gas recovery serves as an effective approach to geologic CO₂ sequestration. Injecting ScCO₂ into shale reservoirs can trigger complex ScCO₂-water-rock interactions, thereby altering the material composition, nanopore structure, and adsorption capacity of shales. Examining their evolutionary processes represents a critical scientific issue in the evaluation of CO₂ sequestration efficiency. Methods This study investigated the shales of the Longmaxi Formation in the southeastern Chongqing area. Through simulation experiments on ScCO₂-water-rock interactions and by integrating X-ray diffraction (XRD), low-pressure CO₂/N₂ adsorption, fractal …

Advances In Research On Co2 Corrosion Mechanisms, Modification, And Application Of Cements For Injection Wells In Geologic Co2 Sequestration, Hao Feng, Zhang Zongfeng, Wang Hongmin, Du Shuai, Huang Da, Yang Xuefeng, Wang Kexin, Zhang Yu

Coal Geology & Exploration

Background and Merhod The wellbore integrity of CO₂ injection wells plays a critical role in maintaining the long-term safe operation of geologic CO₂ sequestration (GCS) projects. Well cement serves as the foremost wellbore integrity barrier, and its durability under GCS has emerged as a hot research topic both at home and abroad. This study systematically reviews the advances in research on the chemical corrosion mechanism of well cement under the operating conditions of GCS, technologies for cement modification for enhanced resistance to CO₂ corrosion, and non-Portland cement systems. Furthermore, the directions for the future development of well …