The science of animal production has recently become headline news. The cloning of sheep, the use of pig xenotransplants and bovine somatotrophin, as well as mad-cow disease, are all examples of how livestock production is related to food safety, human health, ethics and quality of life. The relationship between intensive developed-world animal production and third world development also raises ethical issues. These are just some of the topics addressed in this book, which has its origin in a special symposium held at the VIII World Congress on Animal Production held in June 1998 in Korea. Additional chapters have been specially commissioned for inclusion in the book.