Livestock grazing could be beneficial for organic farming systems. "Fresh produce growers and their advisors will benefit from learning about the impacts of integrating livestock grazing with winter cover crop management on soil health including soil organic matter, nutrient cycling and reduced nitrate leaching, and potential food safety risks discovered in this project to make decisions on adoption, management, and environmental benefits of winter cover crop management in annual vegetable systems," said Alda Pires, University of California Cooperative Extension specialist in the UC Davis School of Veterinary Medicine and principle investigator in the study.