Helping to reduce adverse effects in non-target wildlife due to rat poison
Researchers with Clemson University’s Department of Forestry and Environmental Conservation, along with other published and unpublished scientific data, have shown that active ingredients in second-generation anticoagulant rodenticides (SGARs) have a high potential to cause adverse effects to non-target wildlife, even when used correctly under current pesticide label directions. These ingredients include: brodifacoum, bromadiolone, difethialone, and difenacoum. In a recent project, researchers reviewed studies from around the world that sought to document wild mammal carnivores’ exposure to anticoagulant rodenticides. Many animals tested in these studies were already dead; others were alive and a part of other studies. Rodenticides were detected in about one-third of the animals in these analyses, including bobcats, foxes and weasels. They directly linked the poisons to the deaths of one-third of the deceased animals – typically, by finding the chemicals in the animals’ liver tissues. Based on these and other research findings, Clemson University pesticide regulators have extended a statewide restriction on the use of SGARs. The original one-year restriction was enacted on February 1, 2025, under state pesticide regulation, Chapter 27–1075, Section B. The restriction will be extended indefinitely.
Improving the effectiveness of risk communication surrounding New World screwworm fly re-emergence in the U.S.
The New World screwworm Fly (Cochliomyia hominivorax), eradicated in the U.S. in the 1970s, poses a serious health threat for pets, livestock, wild animals, and humans. The fly has re-emerged in Mexico and is now present 70 miles from the U.S. border. The U.S. response involves the reintroduction of technology used in the initial eradication and potential new technologies that can be adapted to address the renewed threat. Dr. Timothy Sellnow, Professor in the College of Behavioral and Social Health Sciences, and his team are studying risk communication surrounding the fly’s re-emergence. Specifically, the re-emergence of the of the pest as a threat in the U.S. involves the simultaneous revival of a past narrative and discussion of novel strategies to address the threat. Although well-known five decades ago, many Americans currently have little understanding or awareness of the threat the fly poses to their health and the health of their animals. Thus, the fly’s re-emergence poses a pressing need for effective risk communication.
New Doctor of Veterinary Medicine degree program
The Harvey S. Peeler Jr. College of Veterinary Medicine (PCVM) at Clemson University has received a Letter of Reasonable Assurance from the American College of Veterinary Medicine to begin accepting applications for enrollment into their new Doctor of Veterinary Medicine (DVM) degree program. The first class will begin in Fall 2026. A top priority for this professional degree program will be to produce graduates who are highly skilled and dedicated to the underserved communities of SC with an emphasis on farm animal, general practice and population medicine. To this end, the PCVM will also contribute to cutting-edge veterinary research and science, continuing education, disease control, animal agriculture and engagement of the citizens of SC. One Health approaches and applications will be integrated throughout the program.
Interdisciplinary One Health curriculum development
The College of Behavioral, Social and Health Sciences (CBSHS) is supporting curriculum development for Clemson University’s collaborative One Health initiative with a strategic new hire in the Department of Public Health Sciences. Dr. Lídia Gual-Gonzalez is an Assistant Professor of One Health in the Department of Public Health Sciences. She is developing new interdisciplinary undergraduate and graduate courses on the interconnections between humans, animals, plants and ecosystems. Her work will enhance collaborations across the University to optimize human, animal and environmental health outcomes and advance the mission and vision of CBSHS and One Health.
Improving farm animal welfare
Improving welfare practices can help to reduce stress and disease susceptibility in farm animals. Dr. Ahmed Ali, Associate Professor in Animal and Veterinary Sciences, is conducting a variety of research projects examining the effects of housing systems, diet, and management practices on the behavior, welfare, and performance of farm animals including laying hens, dairy cows and horses. Dr. Ali is also working to develop non-invasive, automated methods for collecting behavior and welfare data from individual animals in their home environments using wireless sensors for measuring activities in laying hens and measuring heart rate variability in horses and dairy cows.
H5N1 wastewater testing in cattle farms
The Disease Modeling and Analytics to inform outbreak Prevention, Response, Intervention, Mitigation, and Elimination in South Carolina ( DMA-PRIME project, Dr. Lior Rennert Lead PI), funded by the Centers for Disease Control and Prevention/Center for Forecasting and Outbreak Analytics, initiated H5N1 wastewater surveillance at Clemson Dairy Farm and with goals to expand to additional farms across South Carolina. Collaborating with the SC State Veterinarian, SC Department of Public Health, Clemson Livestock and Poultry Health, and Clemson Extension, H5N1 monitoring of wastewater and milk samples on cattle farms was initiated to enhance outbreak prevention, response, and mitigation efforts in South Carolina.
Conservation of wild tigers
Over the last 100 years there has been a 95% decline in the wild tiger population. Cambodia, Laos, and Vietnam have completely lost their wild tigers. Tiger habitats provide essential ecosystem services, that underpin livelihood security health and overall human prosperity. There are a little over 5,000 wild tigers remaining today. Tigers are multidimensional indicators of biodiversity and societal health; they embody the intricate balance between nature and humanity. Drs. Greg Yarrow and Hrishita Negi in the College of Agriculture, Forestry, and Life Sciences are co-directing the Clemson Tigers United Program and helping to grow the numbers of wild tigers. Current projects include forging partnerships globally, innovating AI technology in the field to help manage human-tiger interactions, working to empower future leaders, sharing success stories, and strengthening protection on the frontlines.
Reducing zoonotic disease risks in humans by improving poultry gut health
Campylobacter and other bacteria are responsible for many food-borne illnesses in humans. Poultry are considered one of the main sources. Dr. Khaled Abdelaziz, Assistant Professor in the College of Agriculture, Forestry, and Life Sciences’ Department of Animal and Veterinary Sciences, and his interdisciplinary team are researching the use of probiotics and other interventions to improve poultry gut health and reduce the risks of disease transmission to humans.
Improving nutrition in broiler chickens
Broiler chickens are an important source of protein for humans worldwide. Dr. Mireille Arguelles-Ramos, Assistant Professor in the College of Agriculture, Forestry, and Life Sciences’ Department of Animal and Veterinary Sciences, and her interdisciplinary team are researching the effects of environmental factors on feed quality and effects of feed additives and other management practices on gut health and meat quality in broiler chickens. She is also applying One Health approaches in her interdisciplinary graduate course entitled “AVS 8080 Comparative Human and Monogastric Animal Nutrition”.
Promoting the use of One Health research approaches
The College of Agriculture, Forestry, and Life Sciences’ Department of Animal and Veterinary Sciences has identified One Health as one of their research emphasis areas. A One Health Research Group has been initiated and regular monthly meetings have been held to promote the use of One Health approaches in research areas such as antimicrobial resistance mitigation, comparative medicine/translational research, zoonotic diseases, disaster preparedness and response, food safety, food insecurity, human – animal bond, education and training of the next generation of One Health professionals, welfare / well-being of animals, and wildlife conservation. The group was initially led by Dr. Jeri Jones, AVS Professor and Veterinary Radiologist. Currently, three Clemson faculty with expertise in animal health, human health and environmental health are co-leading the group: Dr. Michael Neault, Dr. Lior Rennert, and Dr. Debora Rodriguez. Group membership has grown to include faculty from multiple Clemson Colleges. To help support the group’s activities, the CAFLS Communications Team has created new One Health graphics and a Clemson Blog site.
