Public attitudes toward genetic modification in dairy cattle

Area of Science:

• Agricultural Science
• Animal Biotechnology
• Public Opinion Research

Background:

• Genetic modification (GM) offers potential benefits in dairy cattle, including hornlessness and disease resistance, impacting animal welfare, farm economics, and worker safety.
• Understanding public perception of these GM applications is crucial for their acceptance and implementation in agriculture.

Purpose of the Study:

• To assess how public attitudes in the U.S. are associated with two GM applications in dairy cattle: hornlessness and disease resistance.
• To investigate the influence of different stated purposes (animal welfare, cost reduction, worker safety, or a combination) on these attitudes.

Main Methods:

• A mixed-methods approach combining an online survey with qualitative analysis of participant reasoning.
• 957 U.S. participants were randomly assigned to one of ten treatment groups in a 2x5 factorial design, evaluating GM applications based on stated purposes.
• Attitudes were measured using 7-point Likert scales, and qualitative data from open-ended responses were analyzed thematically.

Main Results:

• Public attitudes were significantly more favorable toward disease-resistant cattle (mean score 4.5) compared to hornless cattle (mean score 3.7).
• For disease resistance, animal welfare as a purpose yielded more positive attitudes than cost reduction.
• For hornless cattle, providing a purpose (animal welfare or all purposes) led to more favorable attitudes than no stated purpose; cost reduction was less favored than animal welfare or all purposes.

Conclusions:

• Both the specific GM application and its perceived purpose critically influence public attitudes.
• Emphasizing animal welfare in the communication of GM applications in dairy cattle can enhance public acceptance.
• The findings highlight the importance of tailored communication strategies for different GM traits and their associated benefits.