Feed contamination with microbiological or toxicological agents can affect animal health, productivity and welfare. At the same time, feed safety is an essential prerequisite for human consumption. The editor and contributors aim to provide an introduction to the complex matter of animal feed contamination, highlight several subjects of recent concern and illustrate the harmonization of legislation and strategies put into place by the global feed industry on feed quality and safety. The book addresses the issues of microbiological hazards, contamination of feed materials by persistent organic pollutants and toxic metals and the risks associated with the presence of natural toxins in three separate sections. The next two parts discuss veterinary medicinal products as contaminants and the use of antimicrobials in animal feed and highlight the risks of emerging technologies. The final section is devoted to technical aspects of quality management.