Agricultural Economics Commons^™

Assessment Of Pletekan Leaf Extract (Ruellia Tuberosa L.) As An Antibacterial Feed Additive For Broiler Chickens (Gallus Gallus Domesticus L.) Infected With Salmonella Sp., Nuria Istiqomah, Poncojari Wahyono, Rury Eryna Putri, Abdulkadir Rahardjanto

Jurnal Ilmu Ternak Universitas Padjadjaran

The use of synthetic antibiotics as antibiotic growth promoters (AGPs) in broiler chickens raises concerns over antibiotic residues and bacterial resistance, necessitating safer natural alternatives. Ruellia tuberosa L. contains various secondary metabolites with potential antibacterial properties; however, its in vivo efficacy against Salmonella sp. remains poorly documented. This study aimed to analyze the phytochemical composition of R. tuberosa leaf extract and evaluate its antibacterial activity against Salmonella sp. in broiler chickens. A Completely Randomized Design (CRD) was employed with eight treatments: a positive control (tetracycline), a negative control (Tween-80), and six extract concentrations (125, 250, 375, 500, 625, and 1000 …

Strategic Value Chain Analysis Of Baiada Poultry: Enhancing The Industrial Value Of Ross Breeders In South Australia, Hammam Abdullah, Eudia Christina Wulandari, Zakaria Husein Abdurrahman

Jurnal Ilmu Ternak Universitas Padjadjaran

The Australian poultry industry is undergoing a significant transformation driven by rising protein demand and stringent standards for animal welfare and biosecurity. As a market leader, Baiada Poultry plays a pivotal role in the upstream Ross breeder sector in South Australia. This study evaluates Baiada’s strategic positioning and operational efficiency to identify how vertical integration and value chain optimization enhance industrial value. Using a descriptive qualitative case study approach, this research utilizes Value Chain Analysis (VCA) and SWOT analysis. Data were gathered through field observations at South Australian breeder facilities, in-depth interviews with management, and comprehensive documentation of biosecurity protocols. …

Credit Access And Technical Efficiency Among Laying Hen Farmers In Indonesia: A Propensity Score Matching Analysis, Mutiara Amalina Khairisa, Dwi Rachmina, Netti Tinaprilla

Jurnal Ilmu Ternak Universitas Padjadjaran

Eggs are a key source of animal protein for the Indonesian population, as they are relatively inexpensive and accessible even for low-income families. The stability of egg production is important for national food security. Access to credit is crucial for continuity in poultry production and can help farmers sustain their operations through efficient farm management. The study aims to examine the factors influencing farmers' decisions to access credit and to evaluate the estimated association between credit and technical efficiency using 2014 Livestock Farm Household Survey data, complemented by provincial producer-price statistics for May 2013–April 2014. Credit was positively associated with …

Comparative Case Study Of Production Efficiency, Financial Performance, And Business Risk In Laying Hen Farms With Different Housing Systems And Management Conditions, Aliffa Mahayu Swastiratu, Fanny Widadie, Darsono

Jurnal Ilmu Ternak Universitas Padjadjaran

The laying hen sector continues to expand in response to increasing demand for animal protein; however, productivity remains sensitive to environmental conditions, particularly temperature fluctuations that affect production stability. The housing system represents a key management factor influencing farm performance. This study aims to compare production efficiency, financial performance, and business risk between closed-house and open-house laying hen systems. A comparative case study approach was applied to two commercial farms in Bayat District, Klaten Regency, representing each housing system. Data were analyzed using feed conversion ratio (FCR) and mortality rate for production efficiency, cost–revenue analysis, R/C ratio, and return on …

Sinergia Para Un Futuro Sostenible. Tecnologías Y Agrosistemas, Jaime Eduardo Andrade Ramírez, Angélica Bravo Bojórquez

Ingeniería

Este libro reúne los resultados más relevantes del proyecto de investigación “Laboratorio Experimental de Sistemas Tecnológicos Orientados a Modelos Acuapónicos (Lestoma)” desarrollado en la Universidad de Cundinamarca, Extensión Facatativá, liderado por el Grupo de Investigación de Sistemas y Tecnología Facatativá (GISTFA). Lestoma también contó con la colaboración de los grupos de investigación Axioma, Agrociencia y Cundinamarca Agroambiental, adscritos respectivamente al programa de Ingeniería de Sistemas y Computación, Ingeniería Agronómica e Ingeniería Ambiental de las Facultades de Ingeniería y Ciencias Agropecuarias. El proyecto también contó con la colaboración estratégica del grupo de investigación Centro de Investigaciones Ambientales de la Universidad del …

Does Farm Size Matter In Agricultural Extension Programs? Insights From Us Agriculture Census Data, Pilja Vitale, Joshua Campbell, Jeffrey Vitale, Michael Patrick, John Garlisch

Journal of Extension

This commentary examines how farm size influences agricultural Extension programs in the United States, highlighting disparities between large and small farms. While large farms dominate production through advanced technologies and economies of scale, small farms are vital for food security, community well-being, and cultural preservation. Key differences include water use, labor, machinery, marketing, financial management, and food safety practices. Extension programs address these disparities through tailored initiatives such as financial literacy training for small farms and technology adoption workshops for large ones. This analysis emphasizes the need for targeted and inclusive Extension programming to enhance sustainability and equity across farm …

Growing South Dakota (Fall 2026), College Of Agriculture, Food And, Environmental Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Support from donors helping set SDSU dairy graduates above the rest
[Page] 4 A decade of impact: Celebrating 10 years of cow-calf, swine education and research facilitates
[Page] 8 98-year-old donor keeps decades-long scholarship going in honor of late husband
[Page] 11 Looking back at Michele Dudash's tenure in academia
[Page] 12Giving students opportunities, experience to build their futures
[Page] 16 A Jackrabbit's journey in growing agricultural leadership
[Page] 18 Building South Dakota's next generation of rural veterinarians
[Page] 19 Conservation: A family affair
[Page] 20 South Dakota Water Resources Institute finds solutions to South Dakota's water challenges …

Economic Costs For Three Selected Water Quality Treatment Technologies, Dawoon Jeong, Debabrata Sahoo, Heather Nix, Sarah White

Forestry and Natural Resources

Maintaining water quality in surface waters, including ponds and irrigation reservoirs, is essential for safe water use and is challenging. Mitigating and reducing nutrient levels is critical for managing risks of harmful algal blooms for agricultural operations, municipal drinking water suppliers, stormwater managers, and other water resource professionals. This article presents economic information about three best management practices (BMPs) treatment technologies well-suited to improving water quality for agricultural operations and small pond owners.

Utah Agricultural Producer Barriers To Adopting Organic Production Methods, Salma Shrity, Kynda R. Curtis, Michele Schahczenski

All Current Publications

This fact sheet discusses the study results from Utah State University researchers that identified the primary barriers Utah producers perceive in adopting organic production methods. The study findings will help guide the development of educational programs, technical assistance, and outreach efforts by the Utah Transition to Organic Production Program (TOPP), Extension, and partner organizations to address producer needs and support the successful adoption of organic production systems in Utah.

The Impact Of Producer Attitudes And Concerns On Organic Adoption Decisions, Salma Shrity, Kynda R. Curtis

All Current Publications

Researchers analyzed survey data to identify producer and operation characteristics, attitudes, and concerns that may influence decisions to adopt organic production methods. This fact sheet presents findings related to producer perceptions of organic production, market opportunities, and certification requirements, including factors that may encourage or discourage adoption of organic practices. The results provide insights to guide Extension educators, agricultural service providers, and organizations in developing targeted educational programs, technical assistance, and resources to support producers interested in organic agriculture.

The Role Of Producer And Operation Characteristics In Organic Production Adoption Decisions, Salma Shrity, Kynda R. Curtis

All Current Publications

Survey data were used to examine producer and farm or operation characteristics, as well as producer attitudes and concerns related to producing and selling organic products that may affect decisions to use organic production methods. This fact sheet discusses the study results related to the producer and operation characteristics that may or may not impact the adoption of organic production methods. The study findings provide valuable information for designing targeted Extension programming, educational resources, and technical assistance that address the needs of different producer groups. By understanding which producer and operation characteristics are associated with organic adoption, organizations can better …

The Organic Production Interests Of Utah's Agricultural Producers, Kynda R. Curtis, Salma Shrity, Michele Schahczenski

All Current Publications

This fact sheet provides an overview of survey respondents’ demographic characteristics and farming operation details, including acreage under production, annual gross sales, primary agricultural products, and marketing channels used. It also describes respondents’ organic production experiences, including years certified, certified acreage, and the primary motivations behind adopting organic production methods. The findings presented provide valuable insights into the characteristics, experiences, and needs of Utah producers related to organic agriculture. Extension educators, agricultural service providers, policymakers, and industry organizations can use this information to develop targeted educational programs, technical resources, and support services that address producer challenges, strengthen organic production capacity, …

The Organic Educational And Resource Needs Of Utah's Agricultural Producers, Kynda R. Curtis, Salma Shrity, Michele Schahczenski

All Current Publications

The findings presented in this fact sheet identify producer priorities for educational content, resources, and support services. This information can guide the development of targeted educational and outreach programs, technical resources, and tools that address producer challenges and support informed decision-making about organic production opportunities in Utah.

Consumer Preferences And Technical Priorities For Salted Chicken Egg Products In West Java, Indonesia: A Quality Function Deployment Approach, Faizal Syahmurman, Roni Kastaman, Devi Maulida Rahmah, Yosini Deliana, Siti Nurhasanah, Efri Mardawati, Boy Macklin Pareira Prawiranegara

The Philippine Agricultural Scientist

Consumer expectations for salted chicken egg products are multidimensional, making it challenging to systematically translate customer requirements into technical product improvement strategies. The purpose of this study was to determine and rank consumer needs for salted chicken egg products in West Java, Indonesia, and to apply a House of Quality-based Quality Function Deployment (QFD) approach to convert these needs into prioritized technical requirements. A total of 120 consumers participated in a structured survey to evaluate 40 customer requirements. The House of Quality planning matrix integrated customer importance, comparative product performance, improvement requirements, and sales-point considerations to determine customer priorities. The …

Spatial Dependence Of Technical Efficiency Of Rice Farms In Camagong San Vicente Farmers Irrigators Association Inc., Cabusao, Camarines Sur, Philippines, Anthony James C. Albis, Julieta A. Delos Reyes, Antonio Jesus A. Quilloy, Jaine C. Reyes, Valerien O. Pede

The Philippine Agricultural Scientist

This study assessed the technical efficiency of rice farms and examined how neighboring farms influence productivity among members of the Camagong San Vicente Farmers Irrigators’ Association Inc. in Cabusao, Camarines Sur, Philippines. Employing Stochastic frontier analysis and spatial econometric models, the research identified key determinants of productivity and technical efficiency. Moran’s Index and visual geospatial analysis revealed significant clustering of technical efficiency, confirming spatial dependence among farm locations. The spatial lag model was selected after robust diagnostic tests, including Lagrange multiplier tests, to capture the influence of neighboring farms on individual efficiency levels. Results indicate substantial variability in technical efficiency …

Bathurst Burr And Its Control, Department Of Primary Industries And Regional Development, Western Australia

Biosecurity factsheets

Bathurst burr (Xanthium spinosum) is a declared pest in Western Australia (WA). This factsheet describes the nature of the plant, requirements land owners/occupiers must adhere to, control methods, and how to search, detect, and report it.

Bathurst burr is a summer growing annual shrubby plant originating in South America. In south west Australia, some mature plants survive well into winter, with the result that burrs may be found for most of the year. The weed spreads entirely by burrs, which are usually carried by people or animals, attached to clothes, fur, or other fibre by their hooked spines. They may …

Flexible Grazing: Evaluating Stocker Cattle As A Drought Management Tool For Utah Livestock Producers?, Ross Israelsen

All Graduate Reports and Creative Projects, Fall 2023 to Present

Drought is a persistent concern in the western United States, often leading to reduced forage production, overgrazing, and economic challenges for livestock producers. This study evaluates the economic feasibility of incorporating stocker cattle as a flexible drought management strategy under varying forage conditions across four Utah grazing locations: Park Valley, Nephi, Vernal, and Beaver. The Rangeland Analysis Platform (RAP) was used to estimate annual forage production and stocking rates from 2001 through 2025. Four stocking-rate scenarios (100%, 75%, 60%, and 50% cow–calf stocking rates) were evaluated using a Net Present Value (NPV) framework to compare the economic performance of traditional …

B.R. Wells Arkansas Rice Research Studies 2025, J. Hardke, X. Sha, N. Bateman

Arkansas Agricultural Experiment Station Research Series

Arkansas is the leading rice producer in the United States. The state represents 45.2% of total U.S. rice production and 45.7% of the total acres planted to rice in 2025. Rice cultural practices vary across the state and across the U.S. However, these practices are also dynamic and continue to evolve in response to changing political, environmental, and economic times. This survey was initiated in 2002 to monitor and record changes in the way Arkansas rice producers approach their livelihood. The survey was conducted by polling county extension agents in each of the counties in Arkansas that produce rice. Questions …

Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2024, Frank Seo, Luke Pullo

AAES Research Reports and Research Bulletins

This report is the nineteenth in a series that examines agriculture’s economic contribution to the Arkansas economy. The total economic contribution of agriculture (direct, indirect, and induced effects) on value added, employment, and labor income was estimated with the Impact Analysis for Planning System (IMPLAN) for the most recent year available, 2024.

Understanding Agricultural Irrigation Practices Along Utah's Wasatch Front Through Farmer-Reported Data, Garland Ledbetter

All Graduate Theses and Dissertations, Fall 2023 to Present

Water is a growing concern in Utah, especially along the Wasatch Front, where cities, farms, and communities all rely on the same limited water supply. Agriculture uses a large portion of the state’s water, so understanding how farms manage irrigation is important for statewide water planning. Utah currently uses a dataset called Water-Related Land Use (WRLU) to estimate agricultural water use across the state. This dataset provides useful information about irrigated land and crop types. However, it does not capture many of the day-to-day decisions farmers make when managing irrigation.

To better understand irrigation practices, this study surveyed 61 farmers …

Towards Improved Stress Resilience, Optimal Growth And Enhanced Biosafety In Transgenic Plants, Xiaotong Chen

All Dissertations

This dissertation investigates biotechnology strategies to improve plant stress resilience, growth, and biosafety in transgenic perennial grasses using creeping bentgrass as a model system. Functional analyses of non-coding RNAs such as miR164 and miR169 showed that regulatory non-coding RNAs influence plant architecture and abiotic stress responses through broad developmental and transcriptional networks, supporting them as valuable engineering targets for complex trait improvement. The dissertation also developed a dual recombinase platform for transgene containment and removal, linking trait engineering with biosafety control. Additionally, the recombinases themselves were examined for their potential impact on heterologous host and were found to reshape plant …

Summaries Of Arkansas Cotton Research 2025, Fred M. Bourland

Arkansas Agricultural Experiment Station Research Series

Planted cotton acreage in Arkansas decreased in 2025 to 520,000 acres compared to 650,000 planted acres in 2024. Arkansas producers harvested 515,000 acres, which was a decrease of 125,000 acres from the 640,000 acres harvested in 2024 (https://www.nass.usda.gov/Quick_Stats/Ag_Overview/stateOverview.php?state=Arkansas&year=2025). The 515,000 harvested acres ranked Arkansas third nationally, trailing only Texas and Georgia in harvested acres (https://esmis.nal.usda.gov/sites/default/release-files/795725/cropan26.pdf). The average cotton yield, as reported by the USDA, was 1,239 lb lint/ac, which ranked fourth nationally, behind California, Louisiana, and Arizona. Arkansas farmers produced an estimated 1.329 million bales, which is a decrease from 1.788 million bales produced in 2024. This production still ranks …

2025 Soybean Invertebrate Losses In The United States, Fred R. Musser, Sebe A. Brown, Tim Bryant, Whitney D. Crow, Jeffrey A. Davis, Christina Difonzo, Ashleigh M. Faris, Chase Floyd, Scott H. Graham, Jeremy K. Greene, Kelly A. Hamby, David Kerns, Janet Knodel, David Owens, Dominic D. Reisig, Phillip M. Roberts, Nicholas J. Seiter, Adam J. Sisson, Benjamin C. Thrash, Kelley J. Tilmon, Adam J. Varenhorst

Midsouth Entomologist

Estimated management costs and losses due to insects and other invertebrates in soybeans during the 2025 growing season were collected and compiled from 20 states to provide a record of insect pressure and management practices for the year. These annual estimates provide a historical record of pest pressure and insect management and have been compiled in some states since 2004. Participating states accounted for 68% of soybean acreage in the United States, with near 100% participation in the southern states. As has been true in previous years, the stink bug complex was the costliest insect pest in soybean followed by …

From Insight To Impact: Segmenting Consumers By Their Regenerative Agriculture Priorities, Lourival Carmo Monaco Neto, Gustavo Stevanin De Souza, Owen Jerome Zakrzewski, Allan Wayne Gray

Department of Agricultural Economics Faculty Publications

Regenerative agriculture is gaining traction in agrifood value chains, yet its definitional ambiguity and the heterogeneity of consumer priorities create strategic challenges for commercialization. Firms commonly assume a homogeneous ‘sustainable consumer’ motivated by environmental outcomes, but research on consumer food values suggests that economic attributes often outweigh environmental concerns when trade-offs are required. This study segments U.S. consumers based on how they prioritize seven core attributes of regenerative agriculture: soil health, biodiversity, greenhouse gas emissions, water use, food prices, crop yield, and farmer profitability. Using forced-ranking data from 1231 nationally representative U.S. consumers surveyed in August 2024, we apply a …

Food Systems Transformation Would Reshape Global Agriculture, Matthew Gibson, Marina Sundiang, Daniel Mason-D’Croz, Thais Diniz Oliveira, Felicitas Beier, Lauren Benavidez-Brouk, Astrid Bos, Maksym Chepeliev, Jonathan Doelman, Shahnila Dunston, Shinichiro Fujimori, Tomoko Hasegawa, Petr Havlik, Jordan Hristov, Jonas Jägermeyr, Marta Kozicka, Marijke Kuiper, Page Kyle, Thijs De Lange, Benjamin Leon Bodirsky, Hermann Lotze-Campen, Hermen Luchtenbelt, David Meng-Chuen Chen, Abhijeet Mishra, Christoph Müller, Gerald Nelson, Amanda Palazzo, Ignacio Perez Dominguez, Alexander Popp, Ronald Sands, Marco Springman, Elke Stehfest, Timothy B. Sulser, Kiyoshi Takahashi, Gianmaria Tassinari, Ferike Thom, Philip Thornton, Kazuaki Tsuchiya, Willem-Jan Van Zeist, Hans Van Meijl, Dominique Van Der Mensbrugghe, Detlef Van Vuuren, Hannah H.E. Van Zanten, Isabelle Weindl, Keith Wiebe, Xin Zhao, Mario Herrero

Department of Agricultural Economics Faculty Publications

Food systems are a major contributor to exceeding planetary boundaries1,2,3 and poor quality diets are a key mortality risk globally4. Projected population and income growth could exacerbate these challenges5. In response, there are calls for transformation towards healthy and sustainable food systems6,7,8. However, the scale and distribution of the impacts of this transformation on agriculture are underexplored. Here we show that, by 2050, the transformation of food systems towards healthy diets (adoption of the EAT–Lancet reference diet), improved productivity and halving of food waste results in a fundamental restructuring of global agriculture, aspects of which break with historical trends. Scenario …

Recent Advances In Sustainable Production Of Enriched Chicken Eggs: A Mini Review, Karim El-Sabrout, Ayman Abd El-Aziz

Jurnal Ilmu Ternak Universitas Padjadjaran

Enriched or “designer” chicken eggs have emerged as an important category of functional foods aimed at improving human nutrition through dietary manipulation of laying hens. This mini-review summarizes recent advances in egg enrichment strategies, focusing on omega-3 fatty acids, vitamins, minerals, and antioxidant compounds. Omega-3 enrichment remains the most widely adopted approach, achieved through supplementation with flaxseed, fish oil, or microalgae, resulting in significant increases in eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in egg yolk. Multi-nutrient enrichment, including selenium, vitamin E, and carotenoids, has also gained attention due to its potential in enhancing antioxidant capacity and health of hens …

Effect Of Dietary Onion Peel Powder (Allium Cepa L.) As A Feed Additive On Production Performance In Broiler, Della Ariesba Putri Dulia, Edhy Sudjarwo, Osfar Sjofjan

Jurnal Ilmu Ternak Universitas Padjadjaran

This study aims to evaluate the use of onion peel powder (Allium cepa L) as a feed additive on feed intake, weight gain, Feed Conversion Ratio (FCR), Production Index, and Income Over Feed Cost (IOFC) in broilers. A total of 144 Lohmann strain broiler (unsexed) were treated from 1 to 35 days of age. There were 6 treatments with 4 replicates, consisting of 24 experimental cages, each filled 6 broilers. The experimental design used completely randomized design (CRD). The treatment groups were as follows: basal feed without antibiotics (P0-), basal feed + 0.1% antibiotics (zinc bacitracin) (P0+), basal feed + …

Effect Of Gowok (Syzygium Polycephalum) Fortification On The Physical Properties And Color Of Goat Milk Yogurt, Siti Rahmawati Zulaikhah, Triana Setyawardani, Juni Sumarmono

Jurnal Ilmu Ternak Universitas Padjadjaran

This study aimed to determine the effect of adding parts of gowok fruit (Syzygium polycephalum) on the physical properties of goat’s milk yogurt. A completely randomized design was applied with treatments consisting of fruit parts (rind, flesh of fruit, and whole seedless fruit) and addition levels (1, 2, and 3%) with three replications. Data were analyzed using analysis of variance followed by Duncan’s multiple range test (DMRT). The results showed that gowok addition had a significant effect (P<0.05) on viscosity, syneresis, and color parameters, but no significant effect (P>0.05) on firmness and work of penetration. Yogurt viscosity ranged from 349.33 to 825 mPa·s and decreased with increasing gowok levels, while …

Financial Analysis Tool (Ct-Ft) For Western North Carolina Christmas Tree Growers, Sam Blumenfeld, Solomon Ghezehei, Justin G.A. Whitehill, Elizabeth G. Nichols

Journal of Extension

Western North Carolina is a major national Christmas tree (CT) production region, yet the CT industry faces numerous challenges that threaten its financial sustainability. Little economic research has been done, and limited decision-making tools exist to assist producers, Extension agents, and associated industry stakeholders. We developed an Excel-based financial analysis tool (CT-FT) to assist small and midsize wholesale CT producers in operational planning and financial assessment. The publicly available financial tools will enable CT growers to better understand their finances and operations, interact with financial stakeholders, assess alternative management scenarios, and track yearly costs to improve operational financial sustainability.

Nebraska And The Midwest Agtech Ecosystem: Benchmarking Innovation Investment And Translation Gaps, Ankit Chandra, Ishani Lal, Brennan Costello

Department of Agricultural and Biological Systems Engineering: Presentations and White Papers

Agricultural innovation is central to the sustainable transformation of food systems, yet the capital that finances it is unevenly distributed relative to where food is produced. This paper develops a diagnostic framework for measuring this mismatch and applies it across the U.S. Midwest from 2021 to 2025, with particular emphasis on Nebraska's structural position within this landscape. Drawing on venture capital deal-flow data, 17 stakeholder interviews, and a novel strength-weakness-opportunity-gap (SWOG) ecosystem mapping methodology, we document $736 million in tracked Midwest AgTech funding across eight states (Nebraska, Iowa, Missouri, Illinois, Indiana, Kansas, North Dakota, and South Dakota). We introduce three …