18 pages., Article 6, Via online journal., The discovery of the antibiotic Aureomycin as a growth promotor for the livestock industry was viewed as revolutionary in 1950. The use of antibiotics as growth promoters in livestock, however, has been questioned by health professionals concerned with the role this use might play in the development of antibiotic resistant bacteria. As a public health issue, newspapers have covered this topic since its discovery. Media, such as newspapers, have used frames to discuss the topic over time as new discoveries have occurred, policy changes have been implemented, and food animal production has changed. The purpose of this study was to determine the frames and sources used by national U.S. newspapers when discussing the topic of antibiotic use in livestock and antibiotic resistance. A quantitative content analysis was conducted on three national U.S. newspapers from 1996 – 2017 and found three primary frames were used when discussing antibiotic use in livestock and antibiotic resistance. The content analysis also indicated that over 90% of the news articles contained a scientific source when communicating about this scientific topic. Based on the frames identified some readers are being ill-informed about this topic and could be using this information in their decision making without having all of the facts. Science communicators should prioritize the inclusion of scientific sources in their writing as they communicate about complex, controversial topics.
21pgs, Gene-editing provides an opportunity to address the significant challenges of population growth and climate change that impact food production. Given the important role of gene-editing in our food system, exploring opportunities to persuade public acceptance of the technology is needed. The purpose of this study was to investigate persuasive effects of metaphorical concepts regarding gene-editing in agriculture. The Elaboration Likelihood Model was used as the conceptual framework. Metaphors stand to influence public acceptance because metaphors encourage issue-relevant thinking and enhance persuasion. A quantitative, randomized, between-subjects, experimental research design was delivered via an online survey to a nationally representative sample of U.S. residents. The manipulation was four mock news articles differentiated by metaphorical concept for gene-editing in agriculture (creation versus text editor versus tool versus control). Even when controlling for confounding variables, the results indicated no significant differences between the treatments on issue-relevant thinking or willingness to share the article on social media. Future research should explore the impact of metaphorical concepts on attitude and other behavioral outcomes associated with elaboration.
16 pages, After years of debates and opposition from pharmaceutical companies, the Final rule of the Veterinary Feed Directive (VFD) went into effect in January 2017 requiring antibiotics used for both humans and animals for the purpose of growth promotion to be discontinued. This study sought to determine the effects framing content regarding antibiotic use in livestock and antibiotic resistance had on public opinion. Using a between-subjects experimental survey research design, 297 respondents indicated their perceptions of antibiotic use in livestock and the development of antibiotic resistant bacteria before being randomly assigned to one of three conditions. Each condition was a mock Twitter account framed differently based on findings from previous studies. After reading their assigned mock Twitter page, respondents indicated their trust of the information contained in the account, their information seeking behavior, demographics, and their support for antibiotic use in livestock. Using an ANCOVA, results indicated the frame influenced trust of information (F = 8.7, p < .05) and information seeking behavior (F = 4.48, p = .01) while support was not significant (F = 2.7, p = .07). Results suggest the blame frame has the greatest influence on shaping public opinion of antibiotic use in livestock and the development of antibiotic resistance.
