K. E. Belk
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View article: 163 2024 International Summit: The societal role of meat and livestock.
163 2024 International Summit: The societal role of meat and livestock. Open
The Dublin Declaration of Scientists on the Societal Role of Livestock (2023) emerged from the International Summit on the Societal Role of Meat, held in Dublin, Ireland, in October 2022. Over 1,200 global scientists have endorsed the decl…
View article: Fresh pork microbiota is temporally dynamic and compositionally diverse across meat, contact surfaces, and processing lines in a pork processing facility
Fresh pork microbiota is temporally dynamic and compositionally diverse across meat, contact surfaces, and processing lines in a pork processing facility Open
The goal of this study was to analyze the microbial profiles of meat and contact surfaces from two different processing lines in a pork processing plant, using a 16S rRNA gene amplicon sequencing workflow specifically designed to investiga…
View article: Temporality and Genetic Relatedness of Salmonella in a Pork Processing Facility
Temporality and Genetic Relatedness of Salmonella in a Pork Processing Facility Open
The goal of this study was to investigate the prevalence and genetic relatedness of Salmonella enterica in meat and contact surfaces from two processing lines at a pork processing plant over a commercial production schedule. Across 192 sam…
View article: The Denver Call for Action
The Denver Call for Action Open
International audience
View article: National Beef Quality Audit—2022: Transportation, mobility, and harvest-floor assessments of targeted characteristics that affect quality and value of cattle, carcasses, and by-products from fed steers and heifers
National Beef Quality Audit—2022: Transportation, mobility, and harvest-floor assessments of targeted characteristics that affect quality and value of cattle, carcasses, and by-products from fed steers and heifers Open
The National Beef Quality Audit (NBQA)-2022 systematically evaluated quality characteristics of cattle, carcasses, and by products generated from the fed steer and heifer sectors. This audit was conducted from September 2021 through Novemb…
View article: National Beef Quality Audit – 2022: Instrument grading assessments of carcass characteristics of fed steers and heifers
National Beef Quality Audit – 2022: Instrument grading assessments of carcass characteristics of fed steers and heifers Open
The instrument grading assessment portion of the National Beef Quality Audit (NBQA)—2022 allowed for the evaluation of beef carcass traits over a 12-mo period. One week of instrument grading data was collected each month from 6 major beef …
View article: National Beef Quality Audit-2022: Harvest-floor assessments of hide defects, carcass defects, and offal condemnations that affect value of carcasses and by-products from market cows and bulls
National Beef Quality Audit-2022: Harvest-floor assessments of hide defects, carcass defects, and offal condemnations that affect value of carcasses and by-products from market cows and bulls Open
The National Beef Quality Audit (NBQA)-2022 serves as a benchmark of the current market cow and bull sectors of the U.S. beef industry and allows comparison to previous audits as a method of monitoring industry progress. From September 202…
View article: Nutrient Analysis of Raw United States Beef Offal Items
Nutrient Analysis of Raw United States Beef Offal Items Open
Nutrient composition of beef offal was evaluated to expand availability of nutrient data for the following beef items: beef heart, liver, kidney, tongue, honeycomb tripe, oxtail, marrow bones, testicles, and blood. These items are consumed…
View article: Reproducibility of Adopting a Healthy Dietary Pattern Twice on Cardiometabolic Disease Risk Factor Responses in Adults: Informing Nutrition for Precision Health
Reproducibility of Adopting a Healthy Dietary Pattern Twice on Cardiometabolic Disease Risk Factor Responses in Adults: Informing Nutrition for Precision Health Open
Objectives: Knowing the reproducibility of changes in cardiometabolic disease (CMD) risk factors within individuals in response to short-term dietary interventions is important for the Nutrition for Precision Health, powered by the All of …
View article: A Comparison of Three Camera Technology Predictions of Intramuscular Fat Percentage in F1 Wagyu
A Comparison of Three Camera Technology Predictions of Intramuscular Fat Percentage in F1 Wagyu Open
The prevalence of highly marbled cattle breeds, such as Wagyu, has increased in the US due to consumer demand for higher-quality beef. The ability to grade highly marbled carcasses accurately and consistently, particularly with quantifying…
View article: National Beef Quality Audit-2022 Phase 1: face-to-face and digital interviews
National Beef Quality Audit-2022 Phase 1: face-to-face and digital interviews Open
The National Beef Quality Audit (NBQA) has been conducted regularly since 1991 to assess and benchmark quality in the U.S. beef industry, with the most recent iteration conducted in 2022. The goal of NBQA Phase I is to evaluate what needs …
View article: National Beef Quality Audit—2022: in-plant assessments of quality and yield determining carcass characteristics of fed steers and heifers
National Beef Quality Audit—2022: in-plant assessments of quality and yield determining carcass characteristics of fed steers and heifers Open
The National Beef Quality Audit – 2022 serves as a benchmark of the current fed steer and heifer population of the U.S. beef industry and allows comparison to previous audits as a method of monitoring industry progress. In-plant cooler ass…
View article: National Beef Quality Audit—2022: Transportation, mobility, live cattle, and hide assessments to determine producer-related defects that affect animal welfare and the value of market cows and bulls at processing facilities
National Beef Quality Audit—2022: Transportation, mobility, live cattle, and hide assessments to determine producer-related defects that affect animal welfare and the value of market cows and bulls at processing facilities Open
The National Beef Quality Audit (NBQA)-2022 serves as a benchmark of the current market cow and bull sectors of the U.S. beef industry and allows comparison to previous audits as a method of monitoring industry progress. From September 202…
View article: Efficacy of Antimicrobial Spray Treatments in Reducing Salmonella enterica Populations on Chilled Pork
Efficacy of Antimicrobial Spray Treatments in Reducing Salmonella enterica Populations on Chilled Pork Open
Studies reporting on alternative antimicrobial interventions for pathogen control on chilled pork carcasses and cuts are limited. In this study, the antimicrobial effects of various spray treatments against Salmonella enterica inoculated o…
View article: Evaluating the effects of antimicrobial drug use on the ecology of antimicrobial resistance and microbial community structure in beef feedlot cattle
Evaluating the effects of antimicrobial drug use on the ecology of antimicrobial resistance and microbial community structure in beef feedlot cattle Open
Introduction Use of antimicrobial drugs (AMDs) in food producing animals has received increasing scrutiny because of concerns about antimicrobial resistance (AMR) that might affect consumers. Previously, investigations regarding AMR have f…
View article: More than an anthropogenic phenomenon: Antimicrobial resistance in ungulates from natural and agricultural environments
More than an anthropogenic phenomenon: Antimicrobial resistance in ungulates from natural and agricultural environments Open
Widely considered an anthropogenic phenomenon, antimicrobial resistance (AMR) is a naturally occurring mechanism that microorganisms use to gain competitive advantage. AMR represents a significant threat to public health and has generated …
View article: PSIX-13 The Impact of Saccharomyces Cerevisiae Fermentation Product on in-Vitro Rumen Fermentation Characteristics, gas Production, and Ruminal Microbiome Composition
PSIX-13 The Impact of Saccharomyces Cerevisiae Fermentation Product on in-Vitro Rumen Fermentation Characteristics, gas Production, and Ruminal Microbiome Composition Open
The objective of this experiment was to evaluate the effect of Saccharomyces cerevisiae products (NaturSafe) on in-vitro rumen fermentation characteristics and microbial diversity. Three crossbred feedlot steers fitted with rumen cannulae …
View article: A Pilot Study: the Development of a Facility-Associated Microbiome and Its Association with the Presence of <i>Listeria</i> Spp. in One Small Meat Processing Facility
A Pilot Study: the Development of a Facility-Associated Microbiome and Its Association with the Presence of <i>Listeria</i> Spp. in One Small Meat Processing Facility Open
This study provides critical knowledge to improve meat safety and quality from small meat processing facilities. Principally, it demonstrates the importance of facility design and room condition to the development of important microbial co…
View article: Bacteroidetes and Firmicutes Drive Differing Microbial Diversity and Community Composition Among Micro-Environments in the Bovine Rumen
Bacteroidetes and Firmicutes Drive Differing Microbial Diversity and Community Composition Among Micro-Environments in the Bovine Rumen Open
Ruminants are a critical human food source and have been implicated as a potentially important source of global methane emissions. Because of their unique digestive physiology, ruminants rely upon a symbiotic relationship with the complex …
View article: Not All Liver Abscesses Are Created Equal: The Impact of Tylosin and Antibiotic Alternatives on Bovine Liver Abscess Microbial Communities and a First Look at Bacteroidetes-Dominated Communities
Not All Liver Abscesses Are Created Equal: The Impact of Tylosin and Antibiotic Alternatives on Bovine Liver Abscess Microbial Communities and a First Look at Bacteroidetes-Dominated Communities Open
Liver abscesses (LAs) are extremely prevalent in cattle and result in significant economic losses due to liver condemnation, decreased growth and production, and lower carcass quality. LAs are commonly attributed to the transition to diets…
View article: Effect of Extended Postmortem Aging on Beef Muscles of Differing Quality Grade during Retail Display
Effect of Extended Postmortem Aging on Beef Muscles of Differing Quality Grade during Retail Display Open
Aging of beef subprimals is a common industry practice to improve tenderness. However, the effect of extended aging (up to 63 d) on retail shelf life, tenderness, and eating quality of beef strip loin and sirloin of differing quality grade…
View article: Changes in the Flavor Profile of Ground Beef Resulting from the Application of Antimicrobial Interventions
Changes in the Flavor Profile of Ground Beef Resulting from the Application of Antimicrobial Interventions Open
The objective of this study was to characterize flavor, fatty acid composition, and volatile compounds of beef treated with common antimicrobial interventions in beef processing facilities. The effect of 3 prechilling antimicrobial interve…
View article: The impact of carcass size, chilling, and electrical stimulation on beef postmortem temperature and pH decline
The impact of carcass size, chilling, and electrical stimulation on beef postmortem temperature and pH decline Open
Variability in carcass size can influence carcass chilling rates which could result in issues associated with beef tenderness and color. Moreover, the usage of electrical stimulation can affect postmortem metabolism and meat quality. Howev…
View article: Bacteroidetes and Firmicutes Drive Differing Microbial Diversity and Community Composition Between Micro-environments in the Bovine Rumen
Bacteroidetes and Firmicutes Drive Differing Microbial Diversity and Community Composition Between Micro-environments in the Bovine Rumen Open
Ruminants are a critical human food source and are a potentially important source of global methane emissions. Because of their unique digestive physiology, ruminants rely upon a symbiotic relationship with complex and rich microbial commu…
View article: Additional file 2 of Resistomes and microbiome of meat trimmings and colon content from culled cows raised in conventional and organic production systems
Additional file 2 of Resistomes and microbiome of meat trimmings and colon content from culled cows raised in conventional and organic production systems Open
Additional file 2: Data 1. Number of Individual samples within composite sample. Data 2. Carcass Meat Trimmings production system antimicrobial resistance determinants class log2 fold change pairwise differences. Data 3. Carcass Meat Trimm…
View article: Evaluating the Effects of Antimicrobial Drug Use On the Ecology of Antimicrobial Resistance and Microbial Community Structure in Beef Feedlot Cattle
Evaluating the Effects of Antimicrobial Drug Use On the Ecology of Antimicrobial Resistance and Microbial Community Structure in Beef Feedlot Cattle Open
Background Antimicrobial drugs (AMDs) are used in beef production to treat clinical disease and to prevent or control infections in groups of cattle. Use of AMDs in food producing animals has received increasing scrutiny because of concern…
View article: Effects of dietary tallow containing trace amounts of ractopamine on beef cattle performance and tissue residue levels and the effect of withdrawal time on ractopamine residues in the gastrointestinal-tract digesta
Effects of dietary tallow containing trace amounts of ractopamine on beef cattle performance and tissue residue levels and the effect of withdrawal time on ractopamine residues in the gastrointestinal-tract digesta Open
The objectives of these experiments were to evaluate (1) if inclusion of inedible tallow containing ractopamine (RAC) in the cattle diet influences feedlot performance, carcass characteristics, and results in detectable RAC in tissues and …