Understanding parasite biology and impact is essential when giving advice on parasite control in farm animals. In the first review devoted to parasites of domestic cattle and sheep alone, this book provides in-depth, focused advice which can be tailored to individual farms. It considers the impact of parasites, both as individual species and as co-infections, as well as epidemiological information, monitoring, and diagnostic procedures. Supported throughout by diagrams and photos to aid diagnosis, it also reviews the basis for control measures such as the responsible use of parasiticides, adaptive animal husbandry and other management practices. This book: focuses on common parasites of domestic sheep and cattle; places emphasis on understanding host responses and epidemiology so that the impact and seasonality of parasitism can be incorporated into advice and decision making; highlights the fundamental importance of the individual farm and farmer in assessing endemic parasitism and tailoring control options accordingly; and provides a comprehensive reference listing, including important historical citations, to underpin the content. An important resource for students, veterinarians and researchers of farm animal health, this book maintains a focus on ruminant parasitology in order to deliver evidence-based advice and also context for the application of basic research.