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All Journal Buletin Peternakan AGRIPITA: Jurnal Agribisnis dan Pembangunan Pertanian Pastura; Journal Of Tropical Forage Science JURNAL PETERNAKAN Jurnal Peternakan Indonesia Jurnal Ternak Tropika Jurnal Ilmiah Universitas Batanghari Jambi Journal of Economic, Bussines and Accounting (COSTING) JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION AGRITROPICA : Journal of Agricultural Sciences JURNAL ILMIAH PETERNAKAN TERPADU Jurnal Hilirisasi IPTEKS (JHI) Buletin Ilmiah Nagari Membangun Inersia : Jurnal Teknik Sipil Jurnal Abdi Insani SIGMA TEKNIKA MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Unri Conference Series: Community Engagement Wahana Peternakan Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Jurnal Talenta Sipil Jurnal Ilmiah Ilmu-Ilmu Peternakan Jurnal AGRISEP: Kajian Masalah Sosial Ekonomi Pertanian dan Agribisnis JIM: Jurnal Ilmiah Mahasiswa Pendidikan Sejarah Journal of Civil Engineering and Vocational Education Andalasian Livestock
James Hellyward
Universitas Andalas
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Veterinary Other

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Analysis of Land Movement in Santur Village Using The Geographical Information System Method (SIG) Nauli, Fitri; Hellyward, James
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 6 No 2 (2024): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/motivection.v6i2.307

Abstract

The village of Santur is located in a tropical climate area with a varied surface relief including flat, hilly, and undulating terrain. The natural landscape in this area presents a potential for moderate to high soil movement, which can lead to land movement. The objective of this research is to map the areas in Santur village that are prone to soil movement. The study utilizes Geographic Information System (GIS) methodology to produce a vulnerability map of soil movement in the research area. Based on the soil movement model developed by Puslittanak in 2004, at least 6 supporting maps are required to generate a soil movement map in the study area, namely regional geological maps, rainfall maps, geomorphological maps, soil type maps, and rock type maps. Therefore, the parameters used in this research include soil type, rock type, land slope, geological formation, land use, and rainfall. All these parameters undergo weighting using map overlay techniques. The research findings indicate that areas in Santur village predominantly exhibit landslide threats, with very high vulnerability on the northern side around mining areas, as well as several other high-risk points within the research area and moderate vulnerability mostly spread across Santur village. Consequently, the mapping results of landslide-prone areas in Santur village can serve as a reference for the government in urban and regional planning for the city of Sawahlunto. Desa Santur merupakan daerah beriklim tropis dan memiliki relief permukaan datar, berbukit, dan bergelombang. Bentangan alam yang ada di daerah ini mempunyai potensi gerakan tanah yang sedang hingga tinggi sehingga bisa menyebabkan terjadinya pergerakan tanah. Tujuan dari penelitian ini untuk memetakan daerah di desa Santur yang rawan terhadap pergerakan tanah. Penelitian ini menggunakan metode Sistem Informasi Geografis (SIG) untuk mendapatkan peta kerentanan pergerakan tanah di daerah penelitian. Berdasarkan model pergerakan tanah yang dikembangkan oleh Puslittanak pada Tahun 2004, dibutuhkan setidaknya 6 peta pendukung untuk menghasilkan peta pergerakan tanah di sekitar wilayah penelitian yaitu, peta geologi regional, peta curah hujan, peta geomorfologi, peta jenis tanah, dan peta jenis batuan. Sehingga, parameter yang digunakan dalam penelitian ini adalah jenis tanah, jenis batuan, kemiringan lahan, formasi geologi, tataguna lahan, dan curah hujan. Semua parameter ini dilakukan pembobotan menggunakan overlay peta. Berdasarkan hasil penelitian menunjukkan bahwa daerah di desa Santur dominan memiliki tingkat ancaman longsor dengan kerawanan sangat tinggi pada sisi utara di sekitar daerah penambangan, serta ada beberapa titik lokasi lainnya, kerawanan tinggi dibeberapa lokasi daerah penelitian, dan kerawanan sedang mayoritas yang tersebar di daerah Desa Santur. Dengan demikian, peta hasil pemetaan daerah rawan pergerakan tanah di desa Santur ini dapat menjadi acuan bagi pemerintah untuk pembuatan rencana tata ruang dan wilayah Kota Sawahlunto.
Optimisation of KUB-2 Chicken Growth to Increase Feed Efficiency Through Feed Restriction Sabrina, Sabrina; Arlina, Firda; Subekti, Kusnadidi; Hellyward, James; Firdaus, Stevanny; Wulandari, Meri; Wulandari, Cici
AGRITROPICA : Journal of Agricultural Sciences Vol. 8 No. 1 (2025)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/j.agritropica.8.1.23-32

Abstract

This study aims to optimise the growth of Superior Balitbangtan (KUB-2) chickens through feed restriction during the starter period and its effect on the recovery phase. This study used 100 two-week-old KUB-2 chickens, placed in 20 cages measuring 70 cm x 70 cm x 60 cm, with each cage containing 5 KUB-2 chickens. The study employed a Completely Randomised Design (CRD) with four treatments and five replicates. The variables observed were feed intake, body weight gain, feed conversion ratio (FCR), Growth Rate,  and Income Over Feed Cost (IOFC). The research showed that applying 20%, 30%, and 40% feed restriction had a significant effect (P < 0.01) on decreasing feed intake and body weight gain, but had no significant effect (P > 0.05) on the feed conversion ratio during the 4 weeks of treatment. During the recovery phase, ad libitum feeding had a significant effect (P < 0.05) on feed intake, but did not affect body weight gain or feed conversion ratio. Throughout the study, feed restriction followed by recovery had a very significant effect (P < 0.01) on feed intake and a significant effect (P < 0.05) on body weight gain and feed conversion ratio. This study concludes that the 20% feed restriction treatment showed the best performance, with a feed intake of 339.97 g/bird/week, body weight gain of 98.35 g/bird/week, a feed conversion ratio of 3.46, a growth rate of 0.227, and an Income Over Feed Cost (IOFC) of Rp. 14,815.
Willingness To Pay For Sustainably Produced Beef: A Study on Urban Consumer Preferences Widiarta, I Putu Gede Didik; Putri, Budi Rahayu Tanama; Qamara, Cori; Hellyward, James; Wijakesuma, Made Hardinata
Buletin Peternakan Vol 49, No 3 (2025): BULETIN PETERNAKAN VOL. 49 (3) August 2025
Publisher : Faculty of Animal Science, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21059/buletinpeternak.v49i3.107081

Abstract

The increasing environmental and ethical challenges associated with conventional beef production have intensified consumer awareness of sustainable food systems, particularly in urban areas of Indonesia. This study examines urban consumers’ willingness to pay (WTP) for sustainably produced beef, focusing on how sustainability attributes, including eco-certification, animal welfare, and environmental sustainability, affect purchasing decisions. Data were collected through a mixed-methods approach, integrating online surveys and Discrete Choice Experiments (DCE), involving a representative sample from five major urban centers: Jakarta, Surabaya, Padang, Balikpapan, and Denpasar. The findings indicate that eco-certification is the most valued attribute, with a marginal willingness to pay (MWTP) of IDR 25,000 per kilogram, followed by animal welfare (IDR 18,500) and environmental sustainability (IDR 15,000). Consumers also demonstrated a general willingness to pay a 20% premium for sustainably produced beef, although regional disparities were observed. Jakarta and Surabaya exhibited the highest WTP premiums, at 23% and 22%, respectively, reflecting the influence of socioeconomic variables, including income, educational attainment, and environmental awareness. These results underscore the growing importance of environmental concerns and ethical considerations in shaping urban consumers’ preferences for beef products. The study contributes to the limited body of literature on sustainable meat consumption behavior in emerging markets, offering practical insights for policymakers, producers, and marketers in designing targeted strategies to promote sustainable beef consumption and support the development of environmentally responsible livestock industries in Indonesia.
Penggunaan Produk Fermentasi Daun Indigofera (Indigofera zollingeriana) dengan Bakteri Bacillus amyloliquefaciens dalam Ransum terhadap Performa Ayam Broiler Mirzah, Mirzah; Hellyward, James; Fajrona, Kadran; Wilnawati, Wilnawati
Jurnal Peternakan Indonesia (Indonesian Journal of Animal Science) Vol 25 No 3 (2023): Jurnal Peternakan Indonesia
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpi.25.3.339-350.2023

Abstract

Penelitian dilakukan untuk mengetahui level penggunaan produk campuran Daun Indigofera dan Ampas Tahu Fermentasi (DIATF) menggunakan Bacillus amyloliquefaciens dalam ransum dan pengaruhnya terhadap performa ayam broiler. Sebanyak 100 ekor DOC broiler strain New Lohmann (MB-202 Platinum) digunakan dan diberi ransum perlakuan selama 5 minggu. Perlakuan adalah penggunaan DIATF dalam ransum. Ransum disusun dengan isoprotein 22% dan isoenergi 3000 kkal/kg. Penelitian ini dilakukan menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan ransum dan 4 kali ulangan. Perlakukan terdiri dari R0 (kontrol, tanpa penggunaan DIATF), R1 (menggunakan 5% DIATF), R2 (menggunakan 10% DIATF), R3 (menggunakan 15% DIATF), R4 (menggunakan 20% DIATF). Peubah yang diamati adalah konsumsi ransum, pertambahan bobot badan, konversi ransum, dan persentase karkas. Hasil penelitian menunjukan bahwa perlakuan memberikan pengaruh berbeda sangat nyata (P<0,01) terhadap konsumsi ransum dan pertambahan bobot badan, persentase karkas serta memberikan pengaruh berbeda nyata (P<0,05) terhadap konversi ransum. Kesimpulan dari penelitian ini adalah daun Indigofera dan ampas tahu yang difermentasikan dengan inokulum Bacillus amyloliquefaciens (DIATF) dapat digunakan sampai level 15% dalam ransum dan dapat mempertahankan performa broiler dengan konsumsi ransum 600,83 g/ekor/minggu, pertambahan bobot badan 304,51 g/ekor/minggu dan konversi ransum 1,98 serta persentase karkas 77,04%.
Comparative Study of Cost and Eco-Efficiency Factors of Aluminum and Conventional Formwork in The AYOMA Apartment Construction Project Apdeni, Risma; Hellyward, James; Syihab S.R., Dhia Luthfi
CIVED Vol. 11 No. 1 (2024): March 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i1.508

Abstract

The AYOMA Apartment construction project used two types of formwork; both aluminum formwork and conventional formwork are applied on one floor. A comparison of the costs of the two types of formwork used has not been carried out in the project planning. This study aimed to obtain a comparison between aluminum formwork and conventional formwork in terms of cost and eco-efficiency factors. The comparison was made specifically on the formwork of the 3rd Floor of the West Tower, The AYOMA Apartment. The unit price analysis of formwork was based on the coefficient of each work item following the regulation on Unit Price Analysis of Public Works and unit price standards applicable in the project location area. The eco-efficiency factors were calculated from the waste produced by manpower. The calculation results showed that the cost of aluminum formwork for the 3rd Floor of West Tower of The AYOMA Apartment is IDR 2,708,328,757.73 or 2.25 times higher than the conventional formwork cost of IDR 1,204,987,034.60. However, when the reusability factor was considered, aluminum formwork is up to 14.83 times more efficient than conventional formwork. In the eco-efficiency factors analysis, the waste produced by manpower for the work of aluminum formwork is less, only 56.48% of the waste produced by manpower for the work of conventional formwork. The amount of waste produced from the main material and the quality of concrete produced by using aluminum formwork support the conclusion that aluminum formwork is more eco-efficient than conventional formwork.
RELATIONSHIP BETWEEN CONSUMER KNOWLEDGE AND FRESH COW MILK CONSUMPTION IN WEST SUMATERA Sillia, Nova; Hellyward, James; Noer, Melinda
Jurnal AGRISEP JURNAL AGRISEP VOL 21 NO 01 2022 (MARCH)
Publisher : Badan Penerbitan Fakultas Pertanian, Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (420.665 KB) | DOI: 10.31186/jagrisep.21.1.1-12

Abstract

Consumer knowledge builds a consumer perception. This perception can influence consumer preferences and behavior. Previous research has explained the relationship between consumer knowledge and consumption, primarily focusing on product knowledge. In contrast, consumer knowledge is not only about products knowledge but also purchasing and usage knowledge. This study aims to identify consumer knowledge about the product, purchase, and usage of fresh cow milk and analyze its relationship with the level of consumption of fresh milk. Consumer product knowledge variables are differences and benefits of the product. Consumer purchasing knowledge variables are price and place of purchasing. Consumer usage knowledge variables are storage and post-storage processing. Consumer knowledge level was analyzed using the quantitative descriptive method, and the relationship between knowledge and consumption level was analyzed using Chi-square analysis. This study explains that consumers have excellent purchasing knowledge, followed by product knowledge and usage knowledge. It means that increasing consumer knowledge is needed to increase the product, purchasing, and usage knowledge. This study also explains that fresh cow milk consumption depends on consumer product knowledge.
Penggunaan Tepung Campuran Daun Indigofera (Indigofera zollingeriana) dan Ampas Tahu Fermentasi Dengan Inokulum Waretha Sebagai Sumber Protein Dalam Ransum Puyuh Petelur Mirzah, Mirzah; Hellyward, James; Fajrona, Kadran; Herwanto, Taufik
TERNAK TROPIKA Journal of Tropical Animal Production Vol. 24 No. 2 (2023): TERNAK TROPIKA Journal of Tropical Animal Production
Publisher : Jurusan Produksi Ternak, Fakultas Peternakan, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtapro.2023.024.02.7

Abstract

Bungkil kedelai merupakan pakan sumber protein nabati dalam ransum unggas yang diperoleh dari impor. Perlu upaya mencari bahan pakan alternatif sebagai substitusinya. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian tepung Daun Indigofera dan Ampas Tahu Fermentasi (DIATF) dalam ransum terhadap performa produksi puyuh dan kualitas telur puyuh. Penelitian dilakukan menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 4 kali ulangan. Perlakuan yang diberikan adalah level penggunaan tepung DIATF dalam ransum yang terdiri dari R0 = ransum tanpa penggunaan DIATF ( kontrol), R1 = 4% DIATF, R2 = 8% DIATF, R3= 12% DIATF dan R4 = 16% DIATF dalam ransum. Peubah yang diamati adalah konsusi ransum, produksi telur, masa telur dan konversi ransum, kolesterol, lemak, dan warna kuning telur puyuh. Hasil penelitian menunjukkan bahwa perlakuan tidak berpengaruh nyata (P>0,05) terhadap konsumsi ransum, produksi telur harian, berat telur, massa telur dan konversi ransum. Namun menunjukkan pengaruh yang  sangat nyata (P<0,01) terhadap kolesterol kuning telur  puyuh dan lemak kuning telur puyuh,  serta   berpengaruh nyata (P<0,05)  terhadap warna kuning telur puyuh. Dari penelitian dapat disimpulkan bahwa penggunaan DIATF sampai 16% atau menggantikan 80% bungkil kedelai sebagai sumber protein dalam ransum dapat dilakukan tanpa menurunkan performa produksi puyuh petelur. Pada kondisi ini diperoleh konsumsi ransum 21,09 (gram/ekor/hari), produksi telur harian 76,43 %, berat telur 9,02 gram/butir, produksi massa telur 6,77 (gram/ekor/hari), dan konversi ransum sebesar 3,17, serta dapat juga menurunkan kadar kolesterol dan lemak kuning telur puyuh.
Strategi Mitigasi Emisi Metana Pada Ruminansia: Sebuah Tinjauan: Strategi Mitigasi Emisi Metana Pada Ruminansia: Sebuah Tinjauan Ningrat, Rusmana Wijaya Surya; Hellyward, James
Jurnal Ilmiah Ilmu-Ilmu Peternakan Vol 27 No 1 (2024): Mei 2024
Publisher : Fakultas Peternakan Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiiip.v27i1.31316

Abstract

Background: Methane emissions from the digestive systems of ruminants significantly impact global warming. Reviews: This article reviews methane emission mitigation strategies in ruminants, emphasizing the underlying scientific aspects. Methane emissions come from microbial fermentation in the digestive system of farm animals such as cattle, sheep, and goat. Feed type, genetics, and fermentation process affect methane emission levels. Nutrition strategies are becoming the main approach using feed additives such as tannin compounds and vegetable oils that are proven to reduce methane production without reducing livestock productivity. Microbial manipulation in the rumen through probiotics and prebiotics has also shown positive results in reducing methane emissions. Developing advanced monitoring technologies, such as sensors and non-invasive monitoring technology, helps accurately identify and measure methane emissions. It is important to consider economic and social aspects in implementing mitigation strategies. Technology affordability and sustainability strategies for smallholder farmers are key focuses. Overall, a holistic approach that includes nutrition strategies, microbial manipulation, monitoring technologies, and economic-social considerations is expected to significantly contribute to reducing the environmental impact of the ruminant farming sector. This strategy not only provides environmental benefits but also can improve the overall efficiency of livestock production. Thus, efforts to mitigate methane emissions in ruminants are a scientific challenge and include social and economic aspects important to achieving sustainability in the livestock sector.
Conjoint Analysis: Consumer Preferences of Natives Chicken in Bukittinggi City Edwin, Tevina; Hellyward, James; Rastosari, Adisti; Utami, Yolani; Suharto, El Latifa Sri; Novarista, Noni
Andalasian Livestock Vol. 1 No. 1 (2024): ALive
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/alive.v1.n1.p51-58.2024

Abstract

When purchasing, consumers will prioritize the attributes attached to the product. Research needs to be done to increase consumer buying interest through consumer preference. Especially if it is done in an area with potential but little interest in Kampong chicken meat, this study aims to look at the preferences of Kampong chicken consumers in Bukittinggi City, West Sumatra, Indonesia. The research implementation time was in August 2023. This study's population is Kampong chicken consumers in several wholesale markets in Bukittinggi. For the sample size, 200 respondents had been taken. The variables in this study are a set of attributes of Kampong chicken: price, color, texture, age, gender, chicken meat parts, and chicken skin. The results showed that the highest importance value was at the age attribute of the chicken, which was 19.069, while the lowest value was the price. Based on calculations, it was found that consumers prefer affordable prices to price stabilization. The preferred meat color was meat with a pink color, chewy skin texture, medium size, 4-5 months old, male sex; the most preferred part was the breast, and the chicken was consumed without the skin.
Co-Authors - Evitayani Adisti Rastosari Aditya Alqamal Alianta Ahadiyah Yuniza Amri, Taqiyuddin Amrina, Elita Amrizal Anas Anna Farhana Anna Farhana Anwar Efendi Harahap Arif Rahman Hakim Arigi, Dylan Haikal Asdi Agustar Astrini, Ni Kadek Mita Sumadi Azahra, Mutiara Bambang Istijono, Bambang Budi Rahayu Tanama Putri Budi Setiyono* Cici Wulandari, Cici Cori Qamara Desmiyawati Desmiyawati, Desmiyawati Edi Erwan El Latifa Sri Suharto Elfi Rahmi Elita Amrina Endang Purwati RN Fajrona, Kadran Firda Arlina Firdaus, Stevanny Fitrini Fitrini Harnentis Harnentis Henni Noviasari Herwanto, Taufik I Putu Gede Didik Widiarta Ida Indrayani Ikhsan Rias Imam Malik Tarigan Jafrinur Jaswandi . Juliantoni, Jepri kadibengkulu kadi Kusnadidi Subekti Lili Warly Luthfi, Muhammad Mangku Mundana Mardiati Zein Mawaddah, Aidha Melinda Noer Mirzah Mirzah Muhamad Zen Zen Narny, Yenny Nauli, Fitri Ni Kadek Mita Sumadi Astrini Ningrat, Rusmana Wijaya Surya Ningsih, Rahmita Budiarti Nova Sillia Nova Sillia Novarista, Noni Nur Azlina Nurhimat Putra, Riza Andesca Rahmi Wati Rahmita Budiartiningsih Rinaldi Ekaputra Risma Apdeni Sabrina Sabrina Setiyono*, Budi Sillia, Nova Suresti, Amna Suyitman Suyitman Syahrial, Syahrial Syihab S.R., Dhia Luthfi TEVINA EDWIN Tinda Afriani Uyung Gatot Syafrawi Dinata Vebryanti, Vebryanti Wijakesuma, Made Hardinata Wilnawati Wilnawati Wilnawati, Wilnawati Winda Sartika WULANDARI, MERI Yananta Sari, Debyta Yetti Marlida Yolani Utami Yozil Alveni Yurnalis Yurnalis Yusni Maulida