Andy Mauromoustakos

Andy Mauromoustakos
University of Arkansas | U of A · Department of Crop, Soil, and Environmental Sciences

PhD Applied Statistics

About

208
Publications
33,504
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
3,693
Citations
Introduction
Andy Mauromoustakos is a tenured Professor at the Department of Crop, Soil, and Environmental Sciences and works as an Applied Statistician for the AGRI STAT LAB at the University of Arkansas Fayetteville campus. Andy teaches graduate courses and does research related to Experimental Designs and Data Analysis for the AG Experiment​ Station and the Division of AG.
Additional affiliations
January 1989 - present
University of Arkansas
Position
  • Professor (Full)
Education
August 1984 - December 1988
Oklahoma State University - Stillwater
Field of study
  • APPLIED STATISTICS

Publications

Publications (208)
Article
Expansion of dicamba-resistant crops increased the frequency of off-target movement issues, especially in the midsouthern United States. Six field trials were conducted over two growing seasons with the purpose to determine the contribution of volatilization and physical suspension of particles to the off-target movement of dicamba when applied wit...
Article
Full-text available
Peach (Prunus persica (L.) Batsch) is widely consumed both fresh and processed. Scarce information exists regarding the fate of phytochemicals after the peach canning process. The aim of the current study was to evaluate the compositional variability and impact of processing on the bioactive compounds profile of eight non-melting peach cultivars, b...
Article
Rice aging is an intrinsic phenomenon that leads to physicochemical changes in rice kernels. The goal of this research is to determine the physicochemical properties of rice dried using a 915 MHz microwave and then aged. Two rice cultivars, a medium grain cultivar Titan and long grain hybrid cultivar XL753, with a harvest moisture content of 20% ±...
Article
A field experiment was conducted in 2019 and 2020 including a total of six site-years and four locations in Arkansas to determine the optimal sequence and timing of dicamba and glufosinate applications when applied alone, sequentially, or in combination to control Palmer amaranth by size: labeled (<10-cm height) and non-labeled (13- to 25-cm height...
Article
The ability of weed populations to evolve resistance to herbicides impact management strategies and profitability of crop production. The objective of this research was to screen Palmer amaranth accessions from Arkansas for glufosinate resistance. Additional efforts focused on the effectiveness of various herbicides, across multiple sites of action...
Article
Full-text available
This experiment compared the effects of 2 chronic heat stress (HS) models, constant (coHS) and cyclic (cyHS), on broiler performance, carcass characteristics and meat quality. A total of 720 male chicks from a Cobb 500 line were placed in 12 environmentally controlled chambers divided into two pens of 30 birds. Before the experimental HS models wer...
Article
Fine ground black pepper generally consumed as a seasoning without any further processing has been associated with Salmonella enterica outbreaks. Thermal inactivation kinetics data is necessary to develop a pasteurization process for fine ground black pepper. This study investigates the influence of temperature and water activity on thermal inactiv...
Article
Harvest moisture content (HMC) and milling duration are important factors that influence milled rice quality. The goal of this research is to determine the effect of HMC and milling duration on the physicochemical properties of long grain and medium grain microwave‐dried rice. A long‐grain hybrid rice cultivar (XL753) and a medium grain rice cultiv...
Article
Full-text available
In the present experiment, a Thr fermentation product (FP) (75% minimum digestible Thr) was evaluated as a replacement for crystalline L-Thr (98.5% minimum digestible Thr) as a source of digestible Thr and other nutrients to support broiler performance (0-48 d) and processing characteristics. Five phase-fed diets included: 1) a positive control (PC...
Article
Improper rice drying results in kernel fissuring, leading to head rice yield reduction due to breakage during milling. The objective of this study was to determine the percentage points (pp) of moisture content reduction that can be achieved in a drying pass without significantly fissuring kernels. Long-grain rough rice of cultivars CL XL745 and Di...
Article
Full-text available
Our aim was to investigate the validity of osmolality from 24-h urine collection in examining the risk for calcium-oxalate (CaOx) kidney stone formation in patients with recurrent urolithiasis. Three hundred and twelve subjects (males/females: 184/128) from France with a history of recurrent kidney stones from confirmed or putative CaOx origin were...
Article
In current and next-generation weed control technologies, sequential applications of contact and systemic herbicides for POST control of troublesome weeds are needed to mitigate the evolution of herbicide resistance. A clear understanding of the impact auxin herbicide symptomology has on Palmer amaranth groundcover will aid optimization of sequenti...
Article
Full-text available
To test the diagnostic ability of two combined practical markers for elevated urine osmolality (underhydration) in free-living adults and children. One hundred and one healthy adults (females n = 52, 40 ± 14 y, 1.70 ± 0.95 m, 76.7 ± 17.4 kg, 26.5 ± 5.5 kg/m²) and 210 children (females = 105, 1.49 ± 0.13 m, 43.4 ± 12.6 kg, 19.2 ± 3.2 kg m⁻²) collect...
Article
Full-text available
Stress and lameness negatively affect the health, production, and welfare. Bacterial chondronecrosis with osteomyelitis (BCO) is a leading cause of stress and lameness in commercial broilers. External changes in skin temperature related to changes in blood flow can be detected with infrared thermography (IRT), offering a noninvasive tool to assess...
Article
Full-text available
Weedy rice ( Oryza sativa L.) is among the most problematic weeds in rice ( Oryza sativa L.) production. The commercialization of herbicide-resistant (HR) rice nearly two decades ago provided an effective tool to manage weedy rice; however, resistance evolution and volunteer HR hybrid rice kept weedy rice at the forefront of rice weed control needs...
Article
Peach (Prunus persica) fruit is widely consumed, both as fresh or as processed (mostly by canning) product. Despite its economic importance, a limited number of studies have dealt with quality assessment of clingstone peach cultivars after thermal processing. Thus, the aim of the current study was to evaluate the effect of canning process on compos...
Article
Full-text available
The purpose of this investigation was to assess the validity and reliability of a seven-day water frequency questionnaire (TWI-FQ) to estimate daily total water intake (TWI) in comparison to a water turnover objective reference value via deuterium oxide (D 2 O). Data collection occurred over 3 weeks, with a wash-out period during week two. Healthy...
Article
The physicochemical properties of rice are influenced by their chemical components and their interactions. It has been demonstrated that the interactions among rice chemical components are enhanced by protein denaturation (PD) via heat treatment and by lipid removal (LR) via solvent extraction. The objective of this study was to investigate the imp...
Article
Rice kernel hardness is an important characteristic to the rice industry because of the greater economic value of whole kernels over brokens. Rice hardness may be weakened by increased porosity, i.e., void spaces formed from loose interaction between chemical components like starch, proteins and lipids. The objective of this study was to elucidate...
Article
Background and objectives: Rough rice may incur various degrees of thermal exposure during heated-air drying, which may cause variations in end-use properties. This study employed a recently proposed method to quantify thermal exposure incurred during drying and its effects on rice end-use properties. Findings: Greater drying-air temperatures and...
Article
Full-text available
Image analysis could be an objective and rapid method to identify woody breast (WB) myopathy and benefit the global poultry industry. The objective of this study was to determine if there are conformational changes that can be used to detect WB characteristics in commercial broiler carcasses across strains, gender, and ages using image analysis. A...
Article
Highlights The impact of parboiling process parameters on the feasibility of one-pass microwave drying of high-moisture parboiled rough rice was investigated. Rough rice was parboiled by 3 hours of soaking in water at 71°C, 73°C, or 76°C and then steamed for 5, 10, or 15 min prior to microwave drying at 915 MHz. Moisture content following parboilin...
Article
Highlights More moisture can be removed in a single drying pass without severely fissuring kernels when samples are tempered than when immediately cooled without tempering. Tempering rice kernels immediately after drying can reduce the percentage of fissured kernels by up to half of that when kernels are immediately cooled without tempering. Abstr...
Article
Full-text available
Woody breast (WB) condition causes significant economic losses to the global poultry industry, and the lack of an objective and fast tool to identify this myopathy is a contributing factor. The aim of this study was to determine if there are broiler carcass conformation changes that can be used to identify WB characteristics using image analysis. I...
Article
Full-text available
The use of broiler breast fillets affected by the woody breast (WB) condition in processed poultry products couldbe a feasible solution to this meat quality problem. This study assessed the impact of utilizing broiler breast fillets at differ-ent degrees of WB severity and percentages on instrumental texture characteristics of deli loaves. Breast f...
Article
Full-text available
Potential applications of chicken meat with the woody breast (WB) condition in further processed products could provide processors with alternatives to deal with this meat quality problem. The objective of this study was to evaluate the effect of the use of broiler breast fillets at varying degrees of WB severity and proportions on instrumental tex...
Article
Rice fortification by parboiling has been used to fortify rice with a single or a combination of multiple nutrients. While several studies have demonstrated the success of rice fortification with minerals by the parboiling technique, the number of studies that used vitamins as fortificants is limited with varying results. A limited-water soaking me...
Patent
Full-text available
This invention relates generally to a system and method of detecting woody breast using image analysis of carcass features, and more particularly to a real-time system and method of detecting woody breast in broilers using non-destructive and/or non-contact image analysis of carcass features. The system and method assess woody breast in broilers at...
Article
Full-text available
Berries are a rich source of phytochemicals, especially phenolics well known for protective activity against many chronic diseases. Berries also contain a complex mixture of volatile compounds that are responsible for the unique aromas of berries. However, there is very limited information on the composition and potential health benefits of berry v...
Article
Full-text available
Four studies were conducted on Cobb 700 broilers to evaluate the dietary protein and any maternal effects on live production and processing parameters. Day-old Cobb 700 broiler breeder pullets were reared to conform to 2 different BW curves (control BW and increased BW) with 8 replicate pens per treatment. Birds were fed common diets from 1 d of ag...
Article
Full-text available
Knowledge of the crop-weed interference on weed biology along with yield penalties can be used for the development of integrated weed management (IWM) tactics. Nevertheless, little is known about the beneficial effects of soybean density, an important aspect of IWM, on late Palmer amaranth ( Amaranthus palmeri S. Watson) establishment time. Two fie...
Article
Full-text available
While daily hydration is best assessed in 24-h urine sample, spot sample is often used by health care professionals and researchers due to its practicality. However, urine output is subject to circadian variation, with urine being more concentrated in the morning. It has been demonstrated that afternoon spot urine samples are most likely to provide...
Article
Full-text available
Consumer concern for broiler welfare has increased interest in chicken from slower growing (SG) broiler strains. Broilers from SG strains take longer to reach market weight, which may necessitate differences in management practices, such as stocking density. This study evaluated the effects of 2 stocking densities on production performance, body co...
Article
Full-text available
Food safety and quality regulations that are agreed on by the buyer and seller are the cornerstone of food safety and quality. Earlier, we reported the top-level survey results of 2,300 food manufacturers as to their costs and benefits of becoming compliant with the benchmarked Global Food Safety Initiative (GFSI) schemes. In this paper, we provide...
Article
Background and objective Approximately 15% of the rice produced in the world is parboiled. Parboiling, a hydrothermal process involving soaking, steaming and drying, is conventionally utilized to improve milling quality, nutritional value, and shelf‐life of rice. Because rice is composed of kernels of varying thickness, rice kernel thickness may im...
Article
Full-text available
Wild blueberry (WBB) powder can be added to the formulation of foods to encourage consumption of health-promoting polyphenolics, but the stability of polyphenolics throughout storage is important. We determined the stability of polyphenolics in five products (ice pop, oatmeal bar, graham cracker cookie, juice, and gummy product) prepared with WBB p...
Article
Full-text available
Stress and leg weakness are detrimental to broiler production, health, and welfare. Traditional methods to evaluate stress may be stressful to the bird because they are invasive and require handling and restraint. Two studies examined the effects of light intensity and flooring on the following in broilers: 1) traditional methods for assessing stre...
Article
Full-text available
The Cobb MV x Cobb 700 male broiler was evaluated for BW and feed conversion ratio (FCR) when fed diets of increasing levels of digestible Lys and ME within each growing phase (0 to 12 d, 12 to 26 d, 26 to 35 d and 35 to 55 d). Male BW was highest (P<0.0001) at 12 d of age for birds fed 1.24% digestible Lys and 3,194 ME, versus birds fed 1.20% dige...
Article
Full-text available
The percentage of broiler complex processing plants slaughtering big birds (e.g., those greater than 3.5 kg) has steadily increased in the United States the past 15 yr. Precision amino acids in dietary formulation is key as the growing cycle for these birds is extended, as well as total feed consumed. Furthermore, broilers reared for big-bird slaug...
Article
Full-text available
Rice consumers in West Africa (WA) have an acquired preference for imported rice. Enhancing consumption of local rice requires matching the grain quality attributes of the imported benchmarks in addition to increasing productivity of local rice cultivars. Thus, there is a need to develop screening tools that will aid breeding programs select for hi...
Article
Full-text available
Cranberry volatiles have received little attention for health-promoting properties. In this study, we compared the inhibitory effects of cranberry polyphenol and volatile extracts and volatile standards on nitric oxide (NO) production in lipopolysaccharide (LPS) activated RAW 264.7 macrophages. Polyphenols were analyzed by HPLC/HPLC-MS and volatile...
Article
The germination process activates amylolytic enzymes that can produce rice syrup through mashing, however the factors affecting enzyme activities and soluble saccharides have not been investigated. This study characterized amylolytic enzymes activities, including α‐amylase, β‐amylase, and α‐glucosidase, and soluble saccharides from germinated rice...
Article
This work assessed the effect of lime treatment (nixtamalization) on the reduction of tannins in grain sorghum and on the subsequent enzymatic hydrolysis of the lime‐treated flours. A split‐plot experimental design for the lime treatment and a factorial experimental design, with variety of sorghum and lime concentration as factors, were used. Sorgh...
Article
Full-text available
Current global concerns about water scarcity present a need to investigate more water‐efficient rice production methods. Alternate wetting and drying (AWD) is fast emerging as a water‐saving irrigation practice, but its effects on rice quality are largely unknown. To ascertain the impact of water‐saving irrigation practices on rice quality, three i...
Article
Rice kernel discoloration during storage results in significant economic losses to rice growers and processors. This study aimed to elucidate the extent of chemical changes and microbial involvement on discoloration of rice kernels during storage. To segregate and/or diminish the effects of microbes, one lot of hybrid long‐grain rice (XL753) sample...
Article
Objectives: Investigators sought to: 1) evaluate the validity of a water frequency questionnaire (WFQ) to estimate mean daily water intake (WI) in adults through comparison to the gold standard, deuterium oxide (D2O) disappearance, and 2) evaluate reliability of WFQ to estimate WI. Methods: Data collection occurred over three weeks, with validit...
Article
Three tempering approaches were followed after drying rough rice at 16.3% and 20.5% initial moisture contents (IMCs) using 57 °C/13% RH air at an airflow of 0.56 (m³/s)/m² for 30, 60, and 90 min in an experimentally simulated cross-flow drying column. For the longer drying durations, post-tempering head rice yields were consistently less when the i...
Article
Full-text available
Information about weed biology and weed population dynamics is critical for the development of efficient weed management programs. A field experiment was conducted in Fayetteville, AR, during 2014 and 2015 to examine the effects of Palmer amaranth (Amaranthus palmeri S. Watson) establishment time in relation to soybean [Glycine max (L.) Merr.] emer...
Article
Full-text available
Prognostic breeding is a crop improvement methodology that utilizes prognostic equations to enable concurrent selection for plant yield potential and stability of performance. There is a necessity for plant breeders to accurately phenotype plants in the field and select effectively for high and stable crop yield in the absence of the confounding ef...
Article
Full-text available
Bacterial chondronecrosis with osteomyelitis (BCO) is a leading cause of lameness in broilers. Infrared thermography (IRT) is a noninvasive technique for measuring infrared radiation from an object and can be used to evaluate clinical health. Two replicated studies compared the effect of light intensity on broilers grown on a wire flooring model th...
Technical Report
Full-text available
Over time, the performance of standard crop lines can deteriorate requiring the development of newer lines. This example illustrates how new crop lines may be developed using the Prognostic Breeding Application. Overview A multi-year program was instigated in order to develop improved lines of the soybean cultivar Haskell. In the first cycle, plant...
Article
Full-text available
There are potential advantages for using noninvasive methods instead of conventional approaches for measuring corticosterone (CORT) as a metric of stress. Two studies compared blood heterophil: lymphocyte (H:L) ratios, serum CORT, cecal content CORT (Study 1), colon content CORT (Study 2), and feather CORT concentrations for broiler chicks receivin...
Article
Full-text available
Changes in heat production (HP) and body composition (BC) in modern broiler breeders can provide means to understand nutrient utilization. Twelve Cobb 500 breeders were evaluated 10 times from 26 to 59 wk of age. The same wired caged breeders were moved to respiratory chambers connected to an indirect calorimetry to obtain oxygen consumption (VO2)...
Article
Objective: To assess the diagnostic ability of urine reagent strips to identify hypohydration based on urine specific gravity (USG). Design: This study examined the agreement of USG between strips and refractometry with Bland-Altman, whereas the diagnostic ability of the strips to assess hypohydration was performed by receiver operating characte...
Article
Individual kernel thickness and moisture content (MC) vary within rice panicles. These variations affect the drying characteristics of rice kernels and consequently, the milling yield. This study utilized an X-ray system augmented with an in-situ rice drying apparatus that enabled fissure detection in rough rice kernels during drying and tempering....
Poster
Full-text available
A JSC script program for the construction design and analysis of Honeycomb Designs used by plant breeders as a prognostic breeding methodology.
Article
In 2000, the Consumer Goods Forum established the Global Food Safety Initiative (GFSI) to increase the safety of the world's food supply and to harmonize food safety regulations worldwide. In 2013, a university research team in conjunction with Diversey Consulting (Sealed Air), the Consumer Goods Forum, and officers of GFSI solicited input from mor...
Article
Background: Mean daily water intake from fluids (WATER-FL) has proven to be difficult to measure because of a range of nonvalidated data collection techniques. Few questionnaires have been validated to estimate WATER-FL against self-reported diaries or urinary hydration markers, which may limit their objectivity.Objectives: The goals of this invest...
Article
The widespread occurrence of Palmer amaranth resistant to acetolactate synthase inhibitors and/or glyphosate led to the increased use of protoporphyrinogen oxidase (PPO)-inhibiting herbicides. This research aimed to: (1) evaluate the efficacy of foliar-applied fomesafen to Palmer amaranth, (2) evaluate cross-resistance to foliar PPO inhibitors and...