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Biosecurity Research And Development In Western Australia - Report By The Biosecurity Council Of Western Australia, Biosecurity Council Of Western Australia

Biosecurity published reports

Research and development (R&D) is crucial to managing Western Australia’s biosecurity risks and threats. There is a perception, however, that these risks and threats could be better recognised nationally, which may result in greater levels of funding for biosecurity R&D activities relevant to Western Australia (WA).

The purpose of this work was to provide advice to the Minister for Agriculture and Food on the status of biosecurity R&D in WA and opportunities to enhance biosecurity R&D funding in the State.

Organic Agriculture Teaching And Learning In 2025: Transforming The Future Learning Landscape, Randa Jabbour, Charles A. Francis, Mary Barbercheck, Katharina S. Ullman

Department of Agronomy and Horticulture: Faculty Publications

University instructors are compelled to anticipate future changes in farming and food systems that will impact their students. Sixteen educators met in 2018 to envision the future of organic agriculture courses needed by 2025. Likely future global issues include food access, especially for people of limited economic means; climate change; and fossil fuel costs. Changes that will impact education are increasing demand for quality food, more organic production, and globalization of food systems due to consolidation. Probable course content changes are increasing focus on whole farm systems; designing for resilience in changing physical, economic, environmental, and political climates; and increasing …

Effects Of Removing Background Soil Reflectance Pixels From Vegetative Index Maps For Characterization Of Corn Responses To Experimental Treatments, Ana Morales, Robert L. Nielsen, James J. Camberato

Purdue GIS Day

In contrast to traditional data collection methods that require manual sampling, vegetative index (VI) maps derived from unmanned aerial vehicles (UAV) imagery are a potential tool to characterize temporal and spatial treatment effects in a more efficient and non-destructive way. Remotely-sensed reflectance data from a growing corn crop contains pixel values associated with the above-ground plant tissue (e.g., leaves, stalks, tassels) and the underlying soil features. Background soil reflectance data potentially reduces the effectiveness of VI for characterizing crop responses to experimental treatments. Removing background soil image pixels from the larger image dataset should improve that effectiveness. The objective of …

Quantifying Four Decades Of Arid-Region Agricultural Development In Arequipa, Peru Using Landsat, Zachary S. Brecheisen, Nicholas Hamp-Adams, Edwin Bocardo Delgado, Martin Villalta Soto, Timothy Filley, Darrell G. Schulze

Purdue GIS Day

The Arequipa Nexus Institute for Food, Energy and the Environment (Nexus Institute) is located in Southwestern Peru, generally bounded by the city of Arequipa to the east, the Majes River to the west, the Pacific Ocean to the south, and the Andes mountains to the north. Though agriculture has been practiced in parts of this cool desert region (MAT~15°C, MAP

Understanding Nitrogen Limitation In Soybean, Nicolas Cafaro La Menza

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Meeting soybean demand on existing cropland area for a global population of 9.7 billion people by the year 2050 requires narrowing the existing gap between average producer yield and yield potential. Soybean relies on two sources on nitrogen (N): biological N₂ fixation and indigenous soil N supply. As soybean yield continues to increase, it seems critical to know if there is a yield level at which potential contribution of indigenous nitrogen sources and fixation becomes insufficient to meet crop N requirements for high yields, while still maintaining or increasing protein and oil concentration. This study evaluated N limitation across …

Review Of Naturally Occurring Ammonia In Groundwater And Its Effect On Using Chloramines For Drinking Water Disinfection In Louisiana, Athena Lindsay

Honors Capstones

No abstract provided.

Evaluation Of Phytochemical Composition And Anti-Cancer Potential In Root Extracts Of Moringa Peregrina (Forssk.) Fiori, Salama Khamis Sultan Saeed Al Kaabi

Theses

Natural products provide many bioactive lead molecules for the discovery of new medicines. Naturally, derived phytochemicals have exhibited tremendous biological activities including anticancer activity. More than 60% of antitumor medicines are closely associated with natural products. In the present study, hexane, chloroform, acetone and, methanol extracts from roots of Moringa peregrina were screened for phytochemical analysis and anticancer activity. Phytochemical analysis was performed by Gas Chromatography and Mass spectrometry (GC-MS). The anticancer potential of the extracts was done on the human breast cancer cell line (MCF-7) and cell viability was measured using WST-1 Cell Proliferation Assay Kit. The cell line …

Drinking Wine And Saving Ancient Steep Vineyards: Interview With Winemaker Martin Müllen (Mosel), Anke Klitzing

Articles

I spoke with winemaker Martin Müllen about the challenges and rewards of cultivating and maintaining the ancient steep vineyards along the Mosel river, which yield amazingly complex Riesling wines and have been renowned for centuries.

Legacy Effects Of Biodegradable Mulch And Soil Amendments On Vegetable Crops And The Soil, Elise V. H. Reid

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Plastic film mulches are used in horticulture to manage weeds, improve water retention, and increase soil temperature. Bioplastics and biofabrics are potentially sustainable alternatives to plastic film; however, they have different rates of in soil degradation. Polylactic acid (PLA) is a 100% biobased polymer that degrades slowly, but could fulfill organic certification to be soil incorporated. Mater-Bi is a commercially available biodegradable plastic (bioplastic), which degrades quickly, but cannot be incorporated in organic systems. Our objectives were to determine the individual and combined effects of soil amendments and residual mulch on vegetable crop yield and soil fertility. In a two-year …

Ghd8 Controls Rice Photoperiod Sensitivity By Forming A Complex That Interacts With Ghd7, Peng Wang, Rong Gong, Ying Yang, Sibin Yu

Department of Agronomy and Horticulture: Faculty Publications

Background: Flowering time is one of the most important agronomic characteristics that ultimately determine yield potential and eco-geographical adaptation in crops. Ghd8 and Ghd7, two major flowering genes, have similar functions and large pleiotropic effects in controlling the heading date, plant height and grain yield of rice. However, these gene interactions at the genetic and molecular levels have not been determined to date.

Results: In this study, we investigated the genetic interaction between Ghd8 and Ghd7 by using a set of near-isogenic lines and a panel of natural germplasm accessions in rice. We found that Ghd8 affected multiple agronomic traits …

How To Choose A Good Trail Horse, Makenna Osborne, Karl Hoopes, Judy Smith

All Current Publications

Trail riding has long been a popular use for the recreational horse, providing outdoor enjoyment for riders of all abilities. Good trail horses come in all shapes, sizes, breeds, and ages making it hard to make a final choice on which horse will carry you safely through your upcoming outdoor adventures. This information is meant as a recommendation to a potential buyer and the buyer must keep in mind their riding and handling capabilities as well as what they’re expecting of the equine.

Using Google Expeditions To Introduce Virtual Reality, Elizabeth Davis, Andrea Schmutz

All Current Publications

This fact sheet gives tips on how to use virtual reality to engage learners.

Hazardous Fuels Reduction Using Flame Cap Biochar Kilns, Darren Mcavoy, Megan Dettenmaier

All Current Publications

This fact sheet describes a do-it-yourself technique for making small-batch biochar. The Utah Biomass Resources Group has demonstrated this method for reducing hazardous forest fuels, protects soils, and creates biochar using simple, low-cost materials.

Chitalpa Tashkentensis, Rick Heflebower

All Current Publications

This fact sheet describes the Chitalpa tree, a small to medium shade tree that grows well n warmer climates of the Intermountain West, including extreme Southern Utah. It includes its origin, growing concerns, and advice for homeowners and plant industry workers.

Body Condition Scoring For Horses, Karl Hoopes, Eric Thacker, Linden Greenhalgh

All Current Publications

Horse enthusiasts are often concerned about their horse’s health, appearance and performance. A major key to accomplishing these three goals is to keep your horse at a desirable body condition, or degree of fat cover. However, being able to accurately evaluate a horse to tell if they are over or underweight has been a subjective practice for many years. As with all aspects of horse ownership, horse owners have different opinions on what is an ideal body weight for an individual horse. Also, because horses come in all shapes and sizes, many horse owners are not able to objectively evaluate …

Baby-Led Weaning: An Approach To Introducing Solid Foods To Infants, Lydia Bangerter, Mateja R. Savoie-Roskos, Casey Coombs

All Current Publications

This fact discusses what baby-led weaning is and strategies to help parents feed their infant using this approach.

Peach Twig Borer (Anarsia Lineatella), Marion Murray, Diane G. Alston

All Current Publications

This fact sheet describes the peach twig borer, a major pest of apricot and peach/nectarine in Utah.

Informing The (Willfully) Uninformed, Syed Imran Ali Meerza, Emie Yiannaka, Christopher Rand Gustafson, Kate Brooks

Cornhusker Economics

Antimicrobial Resistance: The Role of Food and Agriculture or Nature White Noise -- which would you rather watch?

A recent study by researchers in the Department of Agricultural Economics at the University of Nebraska- Lincoln gave participants that choice. Nearly 40 percent of respondents avoided learning about antimicrobial resistance and chose the white noise video. The goal of the study was to shed light on the role that certain individual characteristics, such as knowledge, perceptions and attitudes, play on information avoidance behavior. In the study, information avoidance behavior is examined in the context of antimicrobial resistance.

The standard view in …

The Effect Of Moisture Content On Chemical Components Of Different Types Of Heat-Not-Burn Tobacco Products, Li Chaojian, Jin Yong, Zhou Chengxi, Shi Huaibin

Food and Machinery

In order to investigate the effect of moisture content on the chemical components of different types of heat-not-burn tobacco products(HNB)，cigarette A prepared using tobacco sheet by thick pulp method and cigarette B prepared using tobacco sheet by Paper making method were taken as research objects, and the correlation between moisture in cigarettes and glycerol, nicotine was studied. SEM and TG analysis were carried out. The results showed that: ① The mass contents of glycerol and nicotine in the tobacco sheet were more accurately expressed in terms of the mass content of the corresponding substances in the dry sheet. ② The …

Establishment Of Multiplex Real-Time Pcr Assays Based On Hand System For The Preliminary Screening Of Five Diarrheagenic Escherichia Coli, Zhong Yike, Wang Yongxia, Zhao Tong, He Xiaoming, Guo Jianshu, Liu Wei, Zou Dayang

Food and Machinery

The specificity of this method was evaluated by testing 17 species closely related bacteria in the laboratory, and the amplification product was analyzed by the Tm value of the dissolution curve, which had good specificity and could detect five different virulence genes: aggR for EAEC, eae for EHEC and EPEC, LT for ETEC, ipaH for EIEC in the same reaction tube. The fecal simulated samples showed that the sensitivity reached 10⁴~10⁶ CFU/mL. The multiplex real-time PCR detection method established in this experiment is suitable for the preliminary screening of five kinds of Escherichia coli.

Diversity Of Antibiotic Resistant Bacteria Isolated From Cold Fresh Chicken Handlers’ Hands, Huang Liujuan, Shao Yi, Feng Bo, Zhou Changyan

Food and Machinery

In order to investigate the potential migration of antibiotic resistant (ART) bacteria from cold fresh chicken to humans during handling in production and consumption, selective culture technology and IonS5^TM XL sequencing platform were used for counting and diversity analysis of tetracycline-(TET^r) and sulfamethoxazole-resistant bacteria (SUL^r) on the surface of six handlers’ hands contacting with cold fresh chicken products. The results showed that the two ART bacteria from the handlers’ hands significantly increased to 4.80×10～2.66×10⁶ CFU/cm² after contacting with cold fresh chicken. Furthermore, 21 and 19 genera of shared flora were identified in the …

Construction Of Production Line Docking System Platform Based On Three-Dimensional Projection Matrix, Zhang Juanjuan, Shen Xiaoyu

Food and Machinery

Due to the problems of torsion and swing of worktable in food machinery processing enterprises, errors happen to the docking in the mechanical processing. Therefore, a platform for the production line docking system, based on three-dimensional projection matrix, was designed to proposed to reduce docking error. Firstly, the three-dimensional motion platform of the system adopted a stepping motor controlled by pulse signal to achieve the limit control of machine tool. Secondly, the laser control of the system was realized by controlling the laser switch and the output power of the laser. Thirdly, the displacement measurement technology of Doppler frequency difference …

Dynamics Analysis Of Carden Circular Panetary Mechanism, Wang Bingbing, Li Meiqiu, Luo Jingbo, Fu Fangqin

Food and Machinery

According to the motion law of the carden planetary mechanism, the equation of motion of the mechanism is solved by geometric analysis, and the dynamic equation of the mechanism is established from the point of view of energy. The change rule of the input torque and output generalized force with time is obtained, and the load spectrum of carden planetary mechanism is qualitatively. The response law of the system is analyzed and the factors affecting the dynamic characteristics of the system are studied. By comparing the simulation with the theoretical calculation, the feasibility of the study is proved, providing design …

Evaluation Method Packaging Shapes Kansei Based On Computing With Words, Ning Tingzhou, Zhang Jinzhi, Ge Meiqin

Food and Machinery

In order to accurately reflect the uncertainty of consumers' perceptual perception, this paper describes consumers' subjective judgment with hesitant fuzzy linguistic terminology set, analyses its operation rules, and constructs hesitant fuzzy CWW(computing with words) model. The case study shows that the aggregation of consumers' perceptual preferences in hesitant fuzzy terms and the realization of information aggregation through linguistic computation can help accurately reflect consumers' subjective perception, reduce consumers' uncertainty in perceptual judgment of packaging shape and support industrial designers to deal with consumers’ kansei opinions more accurately.

Study On The Change Of Texture Characteristics Of Water Buffalo Meat During Low Temperature Storage, Li Chunyou, Fu Chunting, Yin Chaomin, Xu Jinrong, Huang Chengdu, Jin Guofeng

Food and Machinery

The changes of texture characteristics of Guangxi water buffalo meat buffalo meat was investigated during low temperature storage using texture profile analysis. Moreover, the correlation among various indexes of beef texture characteristics of buffalo meat was also analyzed. The results indicated that the hardness, elasticity, chewiness and adhesiveness of buffalo meat decreased continuously with the prolongation of storage time, but the cohesiveness of buffalo meat was increasing. During cryopreservation, there was a significantly positive correlation between the hardness of buffalo meat and characteristics of elasticity, adhesiveness, and chewiness (P＜0.05), but no significant correlation between the cohesiveness of buffalo meat and …

Optimization Of Flash Extraction Process And Structure Identification Ofpolysaccharide And Protein From Hericium Erinaceus, Zhang Xiong, Xiao Zhiyong, Huang Qun, Huang Xiang, Yang Ran, Chen Lei, Wang Yiwei

Food and Machinery

The polysaccharides and proteins from Hericium erinaceus were flashly extracted. On the basis of single factor experiments, the response surface methodology was applied to optimize the extraction conditions, and the structure of the polysaccharide and the subunit composition of the protein molecule were analyzed by infrared spectroscopy and SDS-PAGE respectively. The optimal condition for extraction of Hericium erinaceus polysaccharides (HEP) and proteins were: extracting time 80 s, liquid-solid ratio 17∶1 (mL/g), grinding granularity 80 meshes, extracting voltage 100 V, HEP yield rate (9.24±0.15)% and protein yield rate was 1.34%. The fourier transform infrared spectrum showed that HEP had absorption peaks …

Effect Of Different Pretreatments Methods On The Product Quality Of Explosion Puffing Drying For Purple Potato Crisps, Wang Lan, Deng Bo, Deng Fangming

Food and Machinery

The objective was to investigate the effect of pretreatment methods on the characteristic of purple potato by explosion puffing drying. The effects were analyzed, from the slice thickness, concentration of citric acid solution, blanching time, freeze-thaw treatment and pre-drying time on moisture content, color difference, hardness, rehydration ratio and apparent density of explosion puffing drying purple potato. Results showed that the appropriate pretreatment conditions were as followed: slice thickness of 2 mm, color protection time by 0.2% citric acid solution for 20 min, water boiled at 100 ℃ for 1 min, freezing at -18 ℃ for 12 h. At room …

Effect Of Edible Mushroom Polysaccharide On Human Gut Microbiome, Cheng Mengya, Yang Yalan, Yang Qiao, Feng Lulu, Huang Rengui, Zheng Lufei, Ren Jiali

Food and Machinery

Polysaccharide is one of the main bioactive compounds in these mushroom which had been generally studied to have the health-promoting properties of anti-oxidation, antitumor, anti-inflammatory, immunoregulation. With the heat wave of gut microbiome rising, how the edible mushroom polysaccharide affects human health through the gut microbiome has become the focus of attention. This review discussed the efficacy and structure of edible mushroom polysaccharides, the composition, distribution and function of human gut microbiome, and how the mushroom polysaccharides affect human health through regulating the gut microbiome. At the same time, preliminary suggestions for the follow-up study of edible mushroom polysaccharides were …

Progress On Main Virulence Factors And Pathogenic Mechanism Of Cronobacter Spp., Fei Peng, Yang Tongxiang, Chen Xi, Xiang Jinle, Zhao Shengjuan, Xu Yunfeng, Zhou Lianxin, Guo Ling, Kang Huaibin

Food and Machinery

In this study, the role of major virulence factors in the pathogenic process of Cronobacter, including enterotoxin, outer membrane protein, gene Inv, and key enzyme RpfF were reviewed. Furthermore, the pathogenic mechanism was summarized from the following aspects, i. e. the adhesion of bacterial hair, the absorption ability of iron by Cronobacter, the utilization of sialic acid, the effects of biofilm on the protection, and the adhesion of Cronobacter, the effect of efflux system on the viability of Cronobacter in host gastrointestinal tract and desiccation resistance.

Progress In Research Of Flow Field Optimization In Quick Freezing Equipment, Zhu Yifan, Xie Jing

Food and Machinery

Quick freezing is an important technique for food preservation. The faster the freezing rate, the better the quality of frozen food after thawing. The greater the wind speed on the surface of the frozen product, the greater the heat exchange intensity and the faster the freezing rate. However, only increasing the fan speed will result in a decrease in fan efficiency and a decrease in flow field evenness, so the flow field needs to be optimized. The fan efficiency can be increased by setting the cone to the fan. The baffle can be arranged in the flow field to eliminate …