Randall Singer
Saint Paul
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Articles by Randall Singer
Evaluating Turkey-Derived Lactic-Acid-Producing Bacteria as Potential Probiotics for Use in Commercial Turkeys
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
Comparison of antimicrobial-resistant Escherichia coli between urban raccoons and domestic dogs
Public and Environmental Health Microbiology Katherine E. L. Worsley-Tonks, Stanley D. Gehrt, Elizabeth A. Miller, Randall S. Singer, Jeff B. Bender, James D. Forester, Shane C. McKenzie, Dominic A. Travis, Timothy J. Johnson, Meggan E. Craft DOI: 10.1128/AEM.00484-21 ABSTRACT Wildlife can be exposed to antimicrobial resistant bacteria (ARB) via multiple pathways. Spatial overlap with domestic animals is a prominent exposure pathway.
Don’t let antibiotic reduction be your primary goal
News and analysis for the global poultry industry.
Antimicrobial use in 22 U.S. beef feedyards: 2016-2017
Abstract This study describes antimicrobial use in 22 U.S. beef feedyards by use of two metrics: milligrams of antimicrobial per kilogram of liveweight sold (mg/kg‐LW) and antimicrobial regimens per animal year (Reg/AY). The primary objectives were to determine the feasibility of collecting antimicrobial use data at the level of the production system and to identify factors unique to feedyard systems which may confound interpretation of summarized antimicrobial use measures.
Antimicrobial use quantification in adult dairy cows - Part 2 - Developing a foundation for pharmacoepidemiology by comparing measurement methods
Abstract As stewardship programmes seek to influence therapeutic choices and reduce resistance selection pressure, it is essential to understand the multiple factors which may influence any given antimicrobial use measure. This article compares 9 measures of antimicrobial use pertaining to adult cows in US dairy systems based on treatment records standardized to a single standardized regimen (SReg) format.
Antimicrobial use quantification in adult dairy cows - Part 3 - Use measured by standardized regimens and grams on 29 dairies in the United States
Abstract This study describes antimicrobial use in terms of standardized regimens per cow year (REG/CY) and grams per cow year (GMS/CY) for 29 dairies in the United States during the years 2016 and 2017. To explore potential priorities for antimicrobial stewardship programs, these measures were stratified by both disease syndrome and antimicrobial class. Potential confounders of use measurements are discussed and challenges for measure interpretation are identified.
Estimates of on‐farm antimicrobial usage in turkey production in the United States, 2013-2017
Abstract With increasing concern about the emergence and spread of resistant bacteria, there is an increasing motivation to optimize antimicrobial use administrations in animal agriculture. A key component of antimicrobial stewardship is the ability to collect antimicrobial use data and ultimately use this information to assess that administrations are necessary and effective.
Antimicrobial use quantification in adult dairy cows - Part 1 - Standardized regimens as a method for describing antimicrobial use
Abstract This study describes a process to acquire and convert farm treatment records into a standardized regimen format. Multiple sources of on‐farm data were utilized to convert the original treatment records to standardized regimens, enabling the generation of objective, granular descriptions of antimicrobial use.
Estimates of on‐farm antimicrobial usage in broiler chicken production in the United States, 2013-2017
Abstract Antimicrobial use is a key selective force behind the emergence of resistant bacteria. Therefore, optimizing strategies for more efficacious and targeted antimicrobial use is an essential component of efforts to combat antimicrobial resistance. To bolster stewardship programmes in animal agriculture, processes are needed for the systematic collection of on‐farm antimicrobial use data.
Antimicrobial use in wean to market pigs in the United States assessed via voluntary sharing of proprietary data
Abstract Data on antimicrobial use were collected for the 2016 and 2017 calendar years from swine producers in the United States. Nine large systems, collectively producing over 20 million market pigs annually, voluntarily provided data to advance understanding of antimicrobial use in the industry and to support antimicrobial stewardship initiatives. The scope of the study was limited to growing pigs, and the granularity of data varied across the systems.
Researchers Need Producer Input on Antibiotic Use
Demand for poultry and livestock raised without the use of antibiotics is growing in the U.S., but there are few data available regarding the association between raised without antibiotic claims and animal health and welfare. Our team has developed a survey to assess opinions and experiences of raised without antibiotics programs in animal agriculture and their relationship to animal health and welfare.
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