Digital Commons Network^™

Rapid Determination Of Drug Residues Of Four Kinds Of Tetracyclines Using Des-Uplc-Ms/Ms In Aquatic Products, Liu Zi-Xiong, Xie Guo-Dan, Tan Gui-Liang, Zheng Hong-Tao, Dong Hai, Huang Jing-Hui

Food and Machinery

Objective:This study aimed to develop a method of rapid detection of tetracyclines including tetracycline, oxytetracycline, aureomycin and doxycyclin in aquatic products with deep eutectic solvents (DES) extraction and ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS).Methods:Different parameters of DES, such as the types of solvents, molar ratio of solvents, water content, and pH value were optimized.Results:The optimum deep eutectic solvent conditions for the medicament analysis of four tetracyclines in aquatic products were choline chloride-glycerol combination(molar ratio 1∶4) with 90% moisture content and 0.1% formic acid. Under the control of these condition, the four types of tetracyclines …

Optimization Of Extraction Conditions For Volatile Flavor Compounds In Crayfish Boiled Liquid Based On Hs-Spme-Gc-Ms, Yang Qi-Fu, Xu Wen-Si, Hu Si-Si, Ma Jia-Chen, Huang Di, Liu Li-Ping, He Jiang, Yang Pin-Hong, Zhou Shun-Xiang

Food and Machinery

Objective:In order to increase the added value of crayfish by-products.Methods:With chromatographic peaks and peak areas as the inspection indicators, the optimization on equilibrium time, addition of sodium chloride, extraction time and extraction temperature were optimized, and the composition of volatile flavor compounds was analyzed.Results:The optimal extraction conditions were equilibrium time 0 min, extraction temperature 75 ℃, extraction time 50 min, addition of sodium chloride 30% with 50/30 μm DVB/CAR/PDMS solid phase microextraction head. Under these conditions, a total of 34 volatile flavor compounds, including 5 alcohols, 12 aldehydes, 5 alkanes, 5 aromatic, 5 heterocyclic …

Gender Barriers To Climate Change Adaptation Practices In Semi-Deciduous Forest Zone Of Ghana, Evans Amoako Amoah, Lawrence Damnyag, Frank Baffour-Ata, Dickson Boateng

Journal of Environmental Sustainability

This study investigated the gender barriers to climate change adaptation practices in the semi-deciduous forest zone of Ghana. A mixed methods approach including household surveys with 210 farmers and 14 focus group discussions was employed in seven selected communities in the Ejisu-Juaben Municipality of the Ashanti Region. The following research questions were answered by the study: (i) What are the climate change adaptation practices implemented by male and female farmers in selected communities of the Ejisu-Juaben Municipality to reduce climate risks? and; (ii) What are the barriers obstructing male and female farmers in implementing climate change adaptation practices in the …

The Farm And Ranch Hired Labor Market, Larry Van Tassell

Cornhusker Economics

The historical causality between increased agricultural mechanization and reduction in farm labor is a well-known relationship. The reduction in both family and hired farmworkers on U.S. farms from 1950 to 2000 is presented in Figure 1. In 1950, the nearly 10 million farm labor force was composed of 23.5% hired farm workers. In 2000, the last year this data was available, farm labor had reduced to 3.19 million workers and was comprised of 35.4% of those workers being hired. The reduction in total farm workers and the trend of reduced farm labor and a relative increase in hired farm labor …

Influence Of Information Sources On Farmers’ Indigenous Knowledge Of Soil Fertility Management In Nigeria, Friday O. Idiku, Emmanuel Ohara Eremi, Oliver Effiong Ntui, Mary Chinwe Nwogu, Precious Jabe Besong

Library Philosophy and Practice (e-journal)

This study assessed the influence of information sources on farmers’ indigenous knowledge on soil fertility management in Nigeria. Multi-stage sampling technique was employed to select one hundred and eighty respondents and the instrument for data collection was the questionnaire. Data collected were analyzed using descriptive statistics of simple frequency and percentage. The findings show that majority of the farmers sampled were female 57.2%, single 50.5%; and tertiary education 39.5%. The result on the sources of farmers’ information about soil fertility management indicated that television was 31.7%, and social media accounted for 31.1% of the total respondents while extension agents accounted …

Quality Analysis Of Fatty Acids And Lecithin Composition Of 20 Kinds Of Fresh Walnut, Yan Meng-Xi, Liu Jing-Wei, Xu Ke-Peng, Song Jie, Li Zhong-Jun

Food and Machinery

Objective:This study aims to explore the correlation between the types and contents of fatty acids and lecithin in fresh walnut.Methods:A kinds of 20 walnuts were selected from Chengdu in Sichuan Province. The method of the gas chromatography and the high performance liquid chromatography were used for quantitative determination. Correlation analysis and cluster analysis were used to analyze the results.Results:The fatty acid composition of 20 kinds of fresh walnut was the same basically, with significant differences in content (P＜0.05). Longnan 15 had the highest oleic acid content. The contents of linoleic acid, arachidonic acid and cis-11-eicosenoic …

Auxiliary Hypoglycemic Effect Of Compound Nutritional Powder On Stz Rats, Sheng Qing-Hai, Liu Cheng, Pan Li-Na, Wang Jia-Qi, Jia Yan-Ju

Food and Machinery

Objective:This study focuses on evaluating the auxiliary blood glucose-lowering function of self-made compound nutritional powder in type 2 diabetic rats.Methods:SD rats were intravenously injected with STZ to construct a pancreatic islet injury type 2 diabetes model. The compound nutritional powder was given by oral gavage at doses of 1.68, 3.35 and 6.70 g/kg for 30 days. Fasting blood glucose and blood glucose were measured after 30 days. Glucose tolerance index to investigate the effect of compound nutrients on STZ rats.Results:The compound nutritional powder was positive for the fasting blood glucose and glucose tolerance indexes of STZ rats; …

Research Progress On Extraction, Compound Of Walnut Oil And Its Function, Deng Xin-Yu, Huang Min-Ru, Huang Da-Rong, Du Bing, Li Pan

Food and Machinery

In this paper, walnut oil was reviewed from four aspects: nutritional components, extraction technology, efficacy and compounding. The changes of nutritional components of walnut oil with different extraction technology and compounding methods were discussed. The future research direction was prospected. The constraints of emerging technology and the new compounding method of walnut oil were the focus of walnut oil research in the future.

Gamma Sigma Delta, Nebraska Chapter Newsletter, Issue #61 Fall Break 2022

Gamma Sigma Delta, Nebraska Chapter: Newsletters

President’s Message

Award of Merit Recipients: Dr. Richard B. Ferguson & Dr. Janos Zempleni

Teaching Award Recipient: Dr. Renee McFee

Research Award Recipient: Dr. Patricio Grassini

Extension Award Recipient: Dr. Justin McMechan

Outstanding Graduate Student: Gabriela Inveninato Carmona

Outstanding Senior Award: Callie McCright

Outstanding Undergraduate Student: Elizabeth Karnopp

New Members Inducted

When Someone Tells You They’ve Received An Invitation to GSD Membership… How do you respond?

Gamma Sigma Delta Committees

In Memoriam: James Henry Williams Jr., 100; Howard Lyle Wiegers, 105; Terry J. Klopfenstein, 82; William (Bill) Robert Raun, 64; Don Joseph Kubik, 85; Mary Rosalind Morris, 101; Roy L. …

Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2020, Leah English, Jennie S. Popp

AAES Research Reports and Research Bulletins

Agriculture and associated agricultural activities are major contributors to the Arkansas economy. Agriculture is defined as the sum of agricultural production and processing activities, unless otherwise specified, and includes crop and animal production and processing, agricultural support industries, forestry and forest products, and textile goods. Agriculture contributes to the economy through direct agricultural production and value-added processing, leading to economic activity in other parts of the economy.

This report is the fifteenth 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 …

Total Prevention: A History Of Schistosomiasis In Japan, Alexander Bay

History Faculty Articles and Research

In Japan, schistosomiasis was endemic in Yamanashi Prefecture and a few other hotspot areas where the Miya’iri snail lived. The parasite’s lifecycle relied on the intermediary Miya’iri snail as well as the human host. Parasite eggs passed into the agrarian environment through untreated night soil used as fertiliser or through the culture of open defecation in rural Japan. Manmade rice fields and irrigation ditches, night soil covered paddies and highly refined growing seasons put people in flooded rice paddies to intensively work the land in the spring and summer. The disease was equally dependent on human intervention in the natural …

Louisiana Agriculture Summer, 2022

Louisiana Agriculture

LSU AgCenter researchers constantly search for ways to improve Louisiana agriculture by increasing yields and profitability. They also seek to understand new and less popular crops that could thrive in our region. Professor Yan Chen is helping develop the tea industry along the Gulf Coast, working closely with producers to understand how to grow tea (Camellia sinensis) in the region, and her work is featured in the latest issue of Louisiana Agriculture magazine. The magazine also includes a look into Grow Louisiana and Growing Farmers, two programs designed to help beginning farmers learn the business. Researchers from the …

Arkansas Corn And Grain Sorghum Research Studies 2021, Victor Ford, Jason Kelley, Nathan Mckinney Ii

Arkansas Agricultural Experiment Station Research Series

The 2021 edition of the Arkansas Corn and Grain Sorghum Research Studies Series includes research results on topics pertaining to corn and grain sorghum production, including weed, disease, and insect management; economics; sustainability; irrigation; post-harvest drying; soil fertility; mycotoxins; cover crop management; and research verification program results. Our objective is to capture and broadly distribute the results of research projects funded by the Arkansas Corn and Grain Sorghum Board. The intended audience includes producers and their advisors, current investigators, and future researchers. The Series serves as a citable archive of research results.

Neuropilin-2 Regulates Androgen-Receptor Transcriptional Activity In Advanced Prostate Cancer, Samikshan Dutta, Navatha Shree Polavaram, Ridwan Islam, Sreyashi Bhattacharya, Sanika Bodas, Thomas Mayr, Sohini Roy, Sophie Alvarez, Marieta I. Toma, Anza Darehshouri, Angelika Borkowetz, Stefanie Conrad, Susanne Fuessel, Manfred Wirth, Gustavo B. Baretton, Paramita Ghosh, Kenneth J. Pienta, David L. Klinkebiel, Surinder K. Batra, Michael H. Muders, Kaustubh Datta

Department of Agronomy and Horticulture: Faculty Publications

Aberrant transcriptional activity of androgen receptor (AR) is one of the dominant mechanisms for developing of castration-resistant prostate cancer (CRPC). Analyzing AR-transcriptional complex related to CRPC is therefore important towards understanding the mechanism of therapy-resistance. While studying its mechanism, we observed that a transmembrane protein called neuropilin-2 (NRP2) plays a contributory role in forming a novel AR-transcriptional complex containing nuclear pore proteins. Using immunogold electron microscopy, high-resolution confocal microscopy, chromatin immunoprecipitation, proteomics, and other biochemical techniques, we delineated the molecular mechanism of how a specific splice variant of NRP2 becomes sumoylated upon ligand stimulation and translocates to the inner nuclear …

Soybean Management For Seed Composition: The Perspective Of U.S. Farmers, Andre F. Borja Reis, Luiz Rosso, Dan Davidson, Peter Kovacs, Larry C. Purcell, Frederick E. Below, Shaun Casteel, Hans J. Kandel, Seth Naeve, Sotirios V. Archontoulis, Ignacio A. Ciampitti

Agronomy, Horticulture and Plant Science Faculty Publications

The soybean [Glycine max (L.) Merr.] compositional quality is mainly provided by the seed concentration of protein and oil. These traits are critical for sustaining global use, and although there is demand for high protein soybean, no mechanism to differentiate production is in place. At the opposite end of the supply chain, farmers are remunerated on a mass basis without having any incentive regarding seed composition. This study evaluated farmers' perspectives and knowledge on soybean quality and their propensity to adopt quality improvement technologies. Farmers from the main U.S. producing regions (n = 271) were investigated with a …

The Impact Of Steam-Flaked Rye Replacing Steam-Flaked Corn On Performance And Carcass Characteristics Of Yearling Steers And The Effect Of Exogenous Megasphaera Elsdenii Administration Techniques On Ruminal Fermentation And Blood Parameters In An Acidosis Challenge Model, Samantha K. Wagner

Department of Animal Science: Dissertations, Theses, and Student Research

A feedlot study was conducted to evaluate the effects of replacing steam-flaked corn (SFC) with steam-flaked rye (SFR) in the diets of yearling steers (Exp. 1). A separate study was conducted to evaluate the effects of three different administration techniques of Megasphaera elsdenii NCIMB 41125 on rumen fermentation and blood parameters in an acidosis challenge model (Exp. 2). In Exp. 1, SFC was replaced with SFR to create four different treatments, each differing in the ratio of SFC:SFR. The four treatments were 0:100, 25:75, 50:50, and 100:0 SFR:SFC (as a percentage of the grain inclusion). Increasing inclusions of SFR resulted …

Effect Of A Commonly Used Veterinary Antibiotic On Oxidative Stress And Root Transporters Of Edible Legumes And Leafy Crops, Safaa Nassar, Jamilah Borjac

BAU Journal - Science and Technology

Antibiotic accumulation in soil and plants is a rising problem in agriculture creating a serious threat to living organisms in the environment, hence needing huge attention. To this end, glasshouse pot experiments were conducted to simulate contamination by veterinary antibiotic at 150 mg kg^-1 and 4800 mg kg^-1 in a virgin soil in which lentil (Lens culinaris Medik.), chickpea (Cicer arietinum L.), arugula (Eruca sativa Mill.) and cress (Lepidium sativum L.) were grown, aiming at evaluating the potential toxicity of antibiotic in plants roots during their growth period. Biomarkers of toxicity such as malondialdehyde and proline …

Total Factor Productivity In Dairy Buffalo Milk Production In Nueva Ecija, Philippines, Zadieshar G. Sanchez, Antonio Jesus A. Quilloy, Nora Dm. Carambas, Mark Dondi M. Arboleda

Journal of Economics, Management and Agricultural Development

This study analyzed the total factor productivity in dairy buffalo milk production in Nueva Ecija, Philippines. Specifically, it aimed to identify the factors that affect dairy buffalo milk production and analyze technical efficiency, scale efficiency, and technological change as sources of TFP growth. Panel data was established by gathering data from randomly selected dairy buffalo milk producers in Nueva Ecija for the years 2017 and 2020. The stochastic frontier analysis was applied to a Cobb-Douglas production function with an inefficiency effects model. It was found that the statistically significant factors of milk production were cows, forage areas, and dairy feeds. …

Research Progress On Separation And Purification Of Flavonoids By Nano-Solid-Phase Extractant, Luo Shi-Hua, Wang Yi-Xuan, Cui Bo, Xu Zhou, Jiao Ye, Cheng Yun-Hui

Food and Machinery

The article summarized the classification of flavonoids and their physiological activities in recent years. The classification, adsorption mechanism and application effects of nano-solid-phase extractant in the separation and purification of flavonoids were reviewed, and the development trend of the separation and purification on flavonoids by nano-solid-phase extractant was analyzed.

Research Progress On Extraction, Purification, Analysis And Biological Activity Of Polysaccharides From Opuntia Dillenii Haw., Yang Yan, Zhou Xin, Chen Hua-Guo

Food and Machinery

In this review, the extraction, purification, structural characterization and bioactivity of polysaccharides from Opuntia dillenii Haw. were summarized. This review provides a theoretical basis for the in-depth development and utilization of the polysaccharides.

Increasing The Resilience Of Plant Immunity To A Warming Climate, Jong Hum Kim, Christian Castroverde, Shuai Huang, Chao Li, Richard Hilleary, Adam Seroka, Reza Sohrabi, Diana Medina-Yerena, Bethany Huot, Jie Wang, Sharon Marr, Mary Wildermuth, Tao Chen, John Macmicking, Sheng Yang He

Biology Faculty Publications

Extreme weather conditions associated with climate change affect many aspects of plant and animal life, including the response to infectious diseases. Production of salicylic acid (SA), a central plant defence hormone, is particularly vulnerable to suppression by short periods of hot weather above the normal plant growth temperature range via an unknown mechanism. Here we show that suppression of SA production in Arabidopsis thaliana at 28 °C is independent of PHYTOCHROME B (phyB) and EARLY FLOWERING 3 (ELF3), which regulate thermo-responsive plant growth and development. Instead, we found that formation of GUANYLATE BINDING PROTEIN-LIKE 3 (GBPL3) defence-activated biomolecular condensates (GDACs) …

A Comprehensive Review On Impact Of Microorganisms On Soil And Plant, Tasaddaq Younas, Muhammad Umer, Aqarab Husnain Gondal, Huma Aziz, Muhammad Shehzad Khan, Abdul Jabbar, Haroon Shahzad, Nadia Masaya Panduro-Tenazoa, Muhammad Jamil, Franklin Ore Areche

Journal of Bioresource Management

Soils have the most diversified microbial communities of any environment on the planet. Bacteria, fungi, algae, and protozoa are all found in abundance in soil. Maintaining a healthy environment for crops requires a strong link between plants and soil microorganisms that are essential for good crop development. Soil bacteria are key regulators of the nutrient cycle. Mineralization, legume nitrogen fixation, and ammonia conversion to plant-available nitrate would all be impossible without bacteria. Effective microorganisms have the ability to boost crop growth and yield. When used in conjunction with organic amendments, these bacteria performs better than to the sole application. It …

Efficacy Of Insecticides Against Fall Armyworm, Spodoptera Frugiperda (Lepidoptera, Noctuidae) In Maize, Fawzan Masood Mian, Imtiaz Khan, Najeeb Ullah, Aqarab Husnain Gondal, Muhamad Saqib Ajmal, Muhammad Sajid Qureshi, Adnan Ihsan, Muhammad Raziq, Imran Qazi, Abdul Jabbar

Journal of Bioresource Management

Fall armyworm (FAW), Spodoptera frugiperda (Lepidoptera: Noctuidae) is most destructive specie of genus Spodoptera for several agricultural crops. In Pakistan's Sindh province, the invasive fall armyworm Spodoptera frugiperda was first documented causing serious maize damage in 2019. There is need to develop management strategies against this pest in the country. The current study was conducted to check the toxicity of different insecticides against FAW in maize field. The results showed among tested insecticides, deltamethrin was recorded most toxic insecticide followed by chlorantraniliprole and emamectin benzoate. At 1d days after first spray, least number of larvae were recorded with deltamethrin (0.07 …

Identification Of Putative Snp Markers Associated With Resistance To Egyptian Loose Smut Race(S) In Spring Barley, Kamal A.M. Abo-Elyousr, Amira M.I. Mourad, P. Stephen Baenziger, Abdelaal H.A. Shehata, Peter E. Eckstein, Aaron D. Beattie, Ahmed Sallam

Department of Agronomy and Horticulture: Faculty Publications

Loose smut (LS) disease is a serious problem that affects barley yield. Breeding of resistant cultivars and identifying new genes controlling LS has received very little attention. Therefore, it is important to understand the genetic basis of LS control in order to genetically improve LS resistance. To address this challenge, a set of 57 highly diverse barley genotypes were inoculated with Egyptian loose smut race(s) and the infected seeds/plants were evaluated in two growing seasons. Loose smut resistance (%) was scored on each genotype. High genetic variation was found among all tested genotypes indicating considerable differences in LS resistance that …

The Adoption Of Food Safety Practices And The Implications Of Regulation For Small Scale Farms, Elizabeth Canales, Juan Silva, Joy Anderson

Journal of Extension

In this article we examine the adoption of food safety practices among produce growers in the south and discuss implications of food safety regulations in the U.S. Produce growers have adopted standard food safety practices to varying degrees, but there is still an adoption gap, particularly among small scale operations. Market-driven and regulatory food safety enforcement continues to tighten, and this can further hinder market access for small scale producers.

Toxicity Of Four New Chemistry Insecticides Against Spodoptera Litura (Noctuidae: Lepidoptera) Under Controlled Laboratory Conditions, Ali Ahmad, Nawwal Kaleem Butt, Muhammad Aqib Idrees, Najmul Hassan, Muhammad Raheel Saleem, Muhammad Umair Ali, Muhammad Ramzan, Ali Asnan

Journal of Bioresource Management

Leaf worm, Spodoptera litura is one of the most destructive insect pests of several agricultural and horticultural crops all over the world including Pakistan. Insecticides have been widely used against different instar larvae of S. litura to minimize the pest population on various crops. New chemistry insecticides were tested to check their toxicity against S. litura on cabbage under laboratory conditions during 2019. Emamectin benzoate was highly toxic followed by chlorantraniliprole, flubendiamide and fipronil. LC₅₀ and LC ₉₀ values of emamectin benzoate were 30.54, 19.73 ppm and 459.07 and 275.65ppm after 24 and 48 h, respectively. 100% mortality of …

Efficacy Of Botanical Plant Extracts On The Population Dynamics Of Cotton Aphid, Aphis Gossypii Glover (Hemiptera; Aphididae), Habib Ali, Salma Ameer, Muhammad Qasim, Sajid Fiaz, Shahbaz Ali, Adnan Noor Shah, Saqlain Zaheer, Basharat Ali, Muhaamad Nawaz, Yasir Ali, Nazir Ahmad

Journal of Bioresource Management

Synthetic pesticides are excessively consumed to control crop pests but abundant use of chemicals may implicate the whole ecosystem badly in the end. Despite the growing concern, few natural products are commercialized for pest control whilst on-farm use of existing botanically-based pesticides remains a small, but growing, component of crop protection practice. The experiment was conducted to assess the potential trade-offs of using botanical extracts (Neem leaf extract, NLE, and Moringa leaf extract, MLE) along with synthetic insecticide, Confidor 200 SL, against Aphis gossypii Glover. Meanwhile, impact of these insecticides on natural enemies were also determined in the field experiment. …

Clearing The Air Between Methane And Commercial Beef Cattle In Ireland, Clodagh V. Ryan

ORBioM (Open Research BioSciences Meeting)

Background

Rumen methanogenesis is the single most significant source of anthropogenic methane (CH₄) emissions. This research aimed to analyse CH₄ data recorded by GreenFeed systems by assessing the repeatability of such phenotypic measures, estimating the heritability of CH₄, and generating CH₄ estimated breeding values (EBVs) for inclusion in the national breeding index_.

Methods

CH₄ measurements were recorded on 979 cattle for 20 to 83 days using GreenFeed machines, resulting in 211,136 individual CH₄ observations. The phenotypic repeatability of CH₄ was estimated for six different averaging periods using a linear mixed …

Validation Of The Irish National Sheep Genetic Evaluations, Niamh Barry

ORBioM (Open Research BioSciences Meeting)

Background: In Ireland, national sheep genetic evaluations have been implemented since 2009, however, to date no large scale study has been undertaken to investigate the accuracy of genetic evaluations in a large multi-breed population. The aim of this study was to validate the estimated breeding values (EBV) on a range of traits, using national data comprising 203,469 records across a range of phenotypic traits from 9,377 flocks.

Methods: The association between direct and maternal EBV on a range of lamb growth traits was quantified using a fixed effects model. For the lambing traits the association between direct and maternal EBV …

An Investigation Of The Novel Use Of Bacteriophages To Diagnose And Treat Johne's Disease In Cattle, Max Kevane-Campbell

ORBioM (Open Research BioSciences Meeting)

Johne’s disease is a scourge to dairy farmers all over the world. It is an infectious disease that causes chronic inflammation and lesions along the inside of the small intestine of, primarily, ruminant animals (i.e., cattle and sheep). It is an incurable disease and urgently requires new and radical intervention strategies. Apart from careful on-site farm management practices, little can be offered to farmers to reduce the risk of infection, and nothing short of livestock culling is effective once an animal becomes infected. Currently, there are no vaccines licensed in Ireland or antibiotic treatment strategies available for Johne’s disease. This …