Cows that have witnessed wolf attack display physical signs associated with post-traumatic stress disorder (PTSD). A new study from Oregon State University affirms this and is also the first study to reveal PTSD biomarkers in cattle. The findings have been published in the Journal of Animal Science.
Source: Progressive Cattleman, May 4, 2017.
Wolf attacks create bad memories in the herd and cause a stress response known to result in decreased pregnancy rates, lighter calves and a greater likelihood of getting sick,” said Reinaldo Cooke, an animal scientist in OSU’s College of Agricultural Sciences who led the study.