Weather Conditions Associated With Citrus Canker Incidence Caused By Aw Strain In The Lower Rio Grande Valley Of South Texas, Amit Sharma, Teresa Patricia Feria-Arroyo, George Yanev, Madhurababu Kunta

School of Integrative Biological & Chemical Sciences Faculty Publications

Citrus canker, caused by bacterium Xanthomonas citri subsp. citri (Xcc), affects the citrus industry by making the fruit unmarketable due to unsightly lesions on the fruit. Citrus canker caused by a relatively new AWstrain of Xcc was reported on the citrus trees in the residential areas of the Lower Rio Grande Valley (LRGV) of South Texas. Xcc AW has a limited host range, predominantly affecting limes and a few other citrus species. Previous work has reported prevailing environmental conditions that influence the incidence and spread of the citrus canker caused by the Asiatic A strain. However, no information is available …

Growth Performance Of Laying Hens Fed Diets Containing Different Levels Of Palm Kernel Meal And Copra Meal, Aynan Gunawan, Burhanudin Sundu, Ummiani Hatta, Sugiarto Sugiarto

Jurnal Ilmu Ternak Universitas Padjadjaran

Abstract

Feed plays an important role in livestock metabolism, especially to support growth, maintain body condition, and production. Therefore, efforts are needed to find high-quality feed ingredients that are easy to obtain, sustainably available, do not compete with human needs, are non-toxic, and economical. One alternative feed ingredient that can be optimized to reduce feed costs is industrial waste, such as coconut meal and palm kernel meal. This research was conducted at the Laboratory of the Faculty of Animal Husbandry and Fisheries, Tadulako University, Palu, for five weeks, namely from March 19, 2022 to May 20, 2022. A total of …

Effect Of Corn Flour Addition On The Physical And Chemical Quality Of Wedelia Trilobata (L) Hitchc Weed Silage For Ruminant Livestock Feed, Ajat Sudrajat, Retno Galuh Syaharani, Nur Rasminati, Wahyu Candra Saputra, Niken Astuti, Raden Febrianto Christi, Fazhana Ismail

Jurnal Ilmu Ternak Universitas Padjadjaran

Research on the physical and chemical quality of weed silage with the addition of corn flour has been carried out. The research was carried out on November 30, 2024 – February 25, 2025 at the Animal Nutrition Laboratory of the Animal Husbandry Study Program, Mercu Buana Yogyakarta University and the Chem-Mix Bantul laboratory, Yogyakarta. The study used an experimental method with a complete random design (RAL) in a unidirectional pattern using 4 treatments, namely P0 (no treatment), P1 (1% corn flour), P2 (3% corn flour) and P3 (5% corn flour), then each treatment was replicated three times. In each treatment, …

Effects Of 1,25-Dihydroxyvitamin D3 Supplementation On Performance Of 60-Week-Old Layers, Edgen Geñoso, Listya Purnamasari, Joseph Olarve, Joseph Dela Cruz

Jurnal Ilmu Ternak Universitas Padjadjaran

The effects of 1,25 dihydroxyvitamin D3 supplementation on egg production, percent hen house, percent hen day, mortality rate and egg size on 60-week-old laying hens were studied. There were 5 treatment groups of layer hens where Treatment 1 served as control supplemented with commercial feed without vitamin D3, Treatment 2 as positive control supplemented with commercial feed and vitamin D3 HyD, which was already used by the poultry farm, Treatment 3 supplemented with commercial feed and Active D at an inclusion rate of 75 ppm per ton of feeds, Treatment 4 supplemented with commercial feed and Active D at an …

Fermentabilitas Dan Kecernaan Ransum Domba Yang Mengandung Kulit Buah Pisang Muli (In Vitro), Iman Hernaman

Jurnal Ilmu Ternak Universitas Padjadjaran

Kulit buah pisang Muli memiliki potensi sebagai bahan pakan sumber serat pengganti rumput lapang, namun saat ini penggunaannya masih terbatas. Penelitian bertujuan untuk mempelajari penggunaan kulit buah pisang Muli dalam ransum terhadap fermentabilitas dan kecernaan (in vitro). Penelitian menggunakan rancangan acak lengkap dengan 4 perlakuan ransum yang mengandung 10, 20, 30, dan 40% kulit buah pisang Muli. Data yang terkumpul dianalisis dengan menggunakan Uji Duncan. Penelitian menghasilkan data yang memberi petunjuk adanya pengaruh nyata (P3yang terendah yaitu berturut-turut sebesar 161,5 mM, 66,72%, 66,15% dan 1,94 mM. Hasil penelitian menyimpulkan bahwa penggunaan kulit buah pisang Muli dapat sebanyak 40% dapat digunakan …

Pengaruh Konsentrasi Asam Sulfat (H2so4) Terhadap Rendemen, Mutu Fisik, Dan Mutu Kimia Gelatin Dari Limbah Shaving Kulit Kambing Pickel, Trianing Anggaeni

Jurnal Ilmu Ternak Universitas Padjadjaran

Salah satu alternatif penanganan limbah padat industri pengolahan kulit yang ekonomis dan bermanfaat adalah melalui pembuatan gelatin. Penelitian pembuatan gelatin dari limbah shaving kulit kambing pikel dengan konsentrasi asam sulfat sebagai bahan perencdam telah dilakukan dengan tujuan mengetahui pengaruh konsentrasi asam sulfat terhadap mutu kimia dan mendapatkan tingkat persentase konsentrasi asam sulfat terbaik. Penelitian dilakukan secara eksperimen menggunakan Rancangan Acak Lengkap dengan perlakuan 5 tingkat perendaman asam sulfat yaitu 1%, 2%, 3%, 4%, dan 5%. Setiap perlakuan diulang sebanyak 4 kali. Variabel yang diukur adalah rendemen, kekuatan gel, viskositas, kadar air, pH, dan kadar sulfit gelatin. Penggunaan asam sulfat konsentrasi …

Pengaruh Lama Pemeraman Dengan Nira Lontar Terhadap Perubahan Fraksi Serat Kulit Kopi Kering (The Effect Of Various Long Ripening In The Palm Juice On Fibre Of Dried Coffee Pulp), Serilus Bhia Tai, Redempta Wea, Agustinus Paga, Bernadete B. Koten

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini telah dilaksanakan di Laboratorium Umum Politeknik Pertanian Negeri Kupang.

Penelitian mulai dari Bulan November 2014–Januari 2015. Penelitian ini bertujuan untuk mengkaji pengaruh berbagai lama pemeraman dengan nira lontar terhadap fraksi serat kulit kopi kering, dirancang dengan metode rancangan acak lengkap (RAL), dengan 4 perlakuan dan 5 ulangan. Perlakuan tersebut adalah kulit kopi + nira lontar yang tidak diperam (K0), kopi + nira lontar yang diperam selama 6 hari (K1), diperam selama 12 hari (K2), diperam selama 18 hari (K3). Variabel yang diamati ialah kadar fraksi serat berupa Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF), lignin, selulosa, dan …

Evaluasi Potensi Pakan Serat Dan Daya Dukung Untuk Pengembangan Ternak Ruminansia Di Wilayah Kabupaten Subang (Evaluation Of Forage And Agricultural Waste Potencies, Its Carring Capacity To Ruminant Developments In Subang), U Hidayat Tanuwiria, A. Budiman, B Ayuningsih

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini dilaksanakan di Kabupaten Subang. Penelitian bertujuan untuk mengetahui

potensi rumput dan pakan serat limbah asal tanaman pangan serta daya dukungnya untuk pengembangan ternak ruminansia di wilayah Kabupaten Subang. Penelitian ini bersifat eksploratif melalui analisis data primer dan sekunder. Data sekunder berupa data tataguna lahan, populasi ternak, produksi dan luas lahan pertanian. Data tersebut diperoleh dari Badan Pusat Statistik Kabupaten Subang. Hasil penelitian adalah sebagai berikut : (1) Potensi pakan di

Kabupaten Subang adalah 390.282 ton BK/tahun yang terdiri atas ton 61.585 BK.tahun-1 asal rumput dan 328.697 ton BK.tahun-1 asal limbah tanaman pangan. (2) Daya dukung pakan terhadap populasi …

Performa Domba Lokal Betina Dewasa Pada Berbagai Variasi Lamanya Penggembalaan Di Daerah Irigasi Rentang Kabupaten Majalengka ( Local Ewes Performance At Various Variation Of Length Grazing In Rentang Irigation Area Of Kabupaten Majalengka), Rachmat Somanjaya, Denie Heriyadi, Iman Hernaman

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian mengenai “Performa Domba Lokal Betina Dewasa pada Berbagai Variasi Lamanya Penggembalaan di Daerah Irigasi Rentang Kabupaten Majalengka”, telah dilaksanakan sejak Tanggal 25 Maret sampai 30 Juli 2015. Penelitian ini bertujuan untuk mengukur lamanya waktu penggembalaan optimum terhadap performa domba lokal betina dewasa yang digembalakan di Daerah Irigasi Rentang Kecamatan Jatitujuh Kabupaten Majalengka. Sampel Domba Lokal betina dewasa dalam penelitian ini adalah sebanyak 62 ekor yang tersebar pada variasi penggembalaan 6 jam 22 ekor. Metode penelitian yang digunakan adalah survey dan observasi. Data yang diperoleh dianalisis secara deskriptif, untuk mengetahui perbedaan rata-rata performa domba diuji dengan Analisys of Varian ( …

Cotton Response To Tillage Systems And Irrigation: Interactions With Seeding Rate And Soil Textural Zones, Jennifer Hinojosa

Student Theses and Dissertations

Arkansas cotton (Gossypium hirsutum L.) producers have made progress in sustainable production over the past twenty years with expanded adoption of soil and water conservation practices, including reduced tillage and use of winter cover crops. Producers have been uncertain about the need to modify other practices as they adopt conservation tillage systems, particularly the costly decision on whether to increase cotton seeding rates when they plant into stale seedbeds with high residue from terminated cover crops. To address this question, an on-farm experiment in northeast Arkansas was conducted to evaluate cotton performance with modified cotton seeding rates in rainfed or …

Sustainability Implications Of Agricultural Practices In The Arkansas Delta: A Field To Market Approach, Melissa Adelle Palumbo

Student Theses and Dissertations

The Field-to-Market Fieldprint Calculator is a software tool designed to estimate and compare relative sustainability of differing agricultural practices. This observational research compared conservation techniques to conventional practices in rice and cotton on three separate farms in Northeast Arkansas. Considering management and site conditions, the Fieldprint Calculator was used to compare sustainability metrics to standards at various spatial scales in a spidergraph report. Eight metrics were analyzed to produce reports, including greenhouse gas emissions, water quality and quantity, land and energy use, soil carbon and conservation, and biodiversity. Results showed no significant change in yield between the different production methods, …

Agronomic, Nitrogen Use, And Economic Efficiency Of Winter Wheat (Triticum Aestivum L.) Under Variable-Rate Versus Uniform Nitrogen Fertilization, Judith Ntow Oppong, Clement Elumpe Akumu, Felix Ogunmokun, Stephanie Anyanwu, Chaz Hardy

Agricultural and Environmental Sciences Faculty Research

Efficient nitrogen (N) management is essential for sustaining crop productivity while minimizing environmental impacts associated with excessive fertilizer use. Variable-rate application (VRA) offers a precision-based approach to matching N inputs with crop demand, yet winter wheat responses to reduced N rates are still underexplored. This study evaluated winter wheat (Triticum aestivum L.) performance under variable and uniform N application strategies using canopy greenness (NDVI), grain yield, plant N content, nitrogen use efficiency (NUE), and fertilizer costs as indicators. Reduced N treatments (40% and 60% VRA rates) were compared with a uniform (100%) application. Canopy greenness increased across all treatments over …

Cost Effects Of Adding Poultry To Organic Vegetable Production Systems In California, Iowa, And Kentucky, Kwanele Magwaba, Alejandro Plastina, Ajay Nair, Maurice Pitesky, David J. Gonthier, Anne Carey, Faye Duan, Viktor Halmos

Journal of Applied Farm Economics

This study evaluates the economic viability of integrating poultry into organic vegetable crop rotations over three years in Kentucky and Iowa and two years in California. Given the growing global demand for food and heightened environmental awareness, understanding the financial implications of such integrated systems is crucial. Our comprehensive experiment compared integrated poultry-vegetable rotations with vegetable-only systems, assessing costs, revenues, and key factors influencing profitability. While integrating poultry reduced vegetable production costs by up to 10% in some cases, overall system costs increased due to high poultry expenses. Break-even poultry prices averaged $8/lb for low-density systems and $7 for high-density …

An Analysis Of Cover Crop Adoption In Southeastern Row Crop Systems: Benefits, Challenges, And Policy Implications, Madison H. Mccay, Yangxuan Liu, Alejandro Plastina, Guy A. Hancock, Amanda R. Smith

Journal of Applied Farm Economics

Cover crops, utilized by producers to provide seasonal soil cover between cash or forage crop cycles, play a significant role in diversifying crop rotations and enhancing environmental sustainability. This research aims to assess the economic impact and farmer perceptions of cover crop adoption in the southeastern United States, particularly in Georgia, Alabama, and Florida. Producers show interest in adopting cover crops with increasing awareness of their benefits, such as improved soil health, water quality, weed suppression, and reduced soil erosion. Despite these advantages, adoption rates are hindered by economic challenges. A survey conducted from January to March 2021 gathered data …

Are Returns From Commercial Farming Heterogeneous? Case Of Wheat Growers In North India, Saroj Verma, Kirtti Ranjan Paltasingh, Phanindra Goyari

Journal of Applied Farm Economics

Contract farming (CF), generally a commercial farming system, is widely perceived as a welfare enhancement strategy in rural areas where agriculture is the major source of livelihood. However, those welfare implications have not been adequately explored in Indian agriculture. So, this study examines the returns to CF and the heterogeneity in their returns across various groups of wheat growers in Haryana, a leading agrarian state in India. Using an endogenous switching regression model on cross-sectional data of 754 farm households, the study found that CF adopters would lose 27% of their gross margins and 11% of their crop output if …

Long-Term Changes In Relative Humidity And Soil Wetness: Implications On Agriculture And Environmental Sustainability In Western Himalaya, Ashwani Ashwani, Pankaj Kumar

Journal of Environmental Science and Sustainable Development

Long-term climate changes in humidity and soil wetness in the cold deserts of the Western Himalaya are still not well researched. Understanding the long-term trends of relative humidity (RH) and soil moisture is crucial in high-altitude, cold desert regions for effective agricultural management and environmental sustainability. The study was conducted in a part of the western Himalaya, which is an ecologically fragile zone with a highly sensitive agricultural region that is vulnerable to climatic variations. A comprehensive study was conducted to evaluate the spatiotemporal variability of RH and soil wetness by means four techniques: Mann-Kendall, Modified Mann-Kendall, Sen’s slope estimator, …

Mulching And Time Of Planting Impact On Southern Blight Disease And Industrial Hemp Production, Sai Suvidh Maddela, Emmanuel C. Omondi, Margaret T. Mmbaga, Anand Kumar, Mitchell Dale Richmond, Philip O. Hinson, Bharat Pokharel

Agricultural and Environmental Sciences Faculty Research

Southern blight, a disease caused by the soil-borne fungus Sclerotium rolfsii (S. rolfsii), is favored by the hot and humid conditions of the southeastern United States, posing a significant challenge to hemp production in Tennessee. Black plastic mulch (BPM), commonly used for weed control, can exacerbate the disease. There is limited information on the effects of straw mulch (SM), known to moderate soil temperatures and moisture, or planting time in disease management. Field studies were conducted in 2022 and 2023 at Tennessee State University to evaluate the effects of planting time, mulch type, and biofungicide application on disease severity, weed …

Optimal Drought Management Actions For Cattle Operations On The Laguna Pueblo And Zuni Pueblo Indian Reservations, Tatiana Drugova, Kynda R. Curtis, Man-Keun Kim

All Current Publications

In this fact sheet, we examine the drought management options available to cattle operations on the Laguna Pueblo and Zuni Pueblo reservations in New Mexico. Specifically, we discuss the results of a study that evaluated the economic outcomes of two common drought response strategies: herd reduction and supplemental hay purchases. We also provide recommendations for ranchers regarding optimal strategies, i.e., those which would maximize profits, for two rancher types, differentiated by their willingness to accept risk (risk-neutral) or avoid it (risk-averse).

Biostimulant Applications In Watermelon Production, Evan A. Christensen, Milena Oliveira, Youping Sun, Grant Cardon, Dan Drost

All Current Publications

Watermelon is a water-intensive vegetable crop that is sensitive to drought and requires adequate nutrient supply for good yield and fruit quality. It is an important vegetable crop grown on 142,000 acres in the United States and 586 acres throughout Utah. Utah experienced its driest year on record in 2020 during a five-year drought (2019 to 2023). This affected local ecosystems, including the Great Salt Lake, which experienced record-low water levels. The drought also negatively affected the agricultural sector, including watermelon growers. Higher-than-average fertilizer prices in recent years have also threatened watermelon production. Growing awareness of agriculture's water use and …

Optimal Drought Management Actions For Cattle Operations On The Duck Valley And Pyramid Lake Indian Reservations, Kynda R. Curtis, Tatiana Drugova, Man-Keun Kim

All Current Publications

In this fact sheet, we examine the drought management options available to cattle operations on two Native American reservations in Nevada, the Duck Valley and Pyramid Lake Indian reservations. Specifically, we discuss the results of a study that evaluated the economic outcomes of two common drought response strategies: herd reduction and supplemental hay purchases. We also provide recommendations for ranchers regarding optimal strategies, i.e., those which would maximize profits for two rancher types, differentiated by their willingness to accept risk (risk-neutral) or avoid it (risk-averse).