A unique resource for all those interested in the impact of worms on livestock, the anthelmintics used to get rid of them and the emerging problem of anthelmintic resistance. This book provides an over-arching view of past, present and suggested future strategies for control of gastrointestinal nematode parasites in sheep and cattle. The book begins with descriptions of the biology of gastrointestinal nematodes, the harm they cause to the host and their economic impact. The main body of the book deals with the control of worms, focusing on the use of anthelmintic drenches. The relationship between drenching practices and the development of drug resistance is discussed, as well as resistance management. The authors also break new ground by discussing alternative options for worm control, including: nutritional interventions, biological control, breeding for desirable genetics and artificially improving immunity to infection. They also offer useful recommendations for program development.

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.

Pyrantel Parasiticide Therapy in Humans and Domestic Animals presents a single source history and reference on the parasiticide activity and pharmacology of the tetrahydropyrimidines and their salts in humans and domestic animals, also collating evidence that resistance to pyrantel has developed in human and domestic animal nematodes. Other books of this nature have been compiled historically for specific anthelmintic compounds, but none has been written to date for the pyrantel family of drugs. Pyrantel, a nicotinic receptor agonist, has been used in domestic animal and human medicine since the 1970's to control two important nematode groups, the hookworms and the roundworms. Given the zoonotic potential of these parasites, pyrantel has served a dual role in helping to protect the health of both domestic animals and the public for more than 45 years.

This issue of Veterinary Clinics: Food Animal Practice, guest edited by Dr. Ray M. Kaplan, focuses on Ruminant Parasitology. This is one of three issues each year selected by the series consulting editor, Dr. Robert A. Smith. Articles in this issue include, but are not limited to: biology and epidemiology of GI nematode parasites in cattle, epidemiology and control of GI parasites of cattle in southern climates, epidemiology and control of GI parasites of cattle in northern climates, anthelmintic resistance and strategies for sustainable control of parasites, refugia-based strategies for parasite control in livestock, epidemiology and control of liver flukes, diagnostic methods in livestock parasitology, parasite vaccines, what Modeling parasites, transmission and resistance can teach us, fecal egg count reduction tests in cattle and small ruminants, ectoparasites of ruminants, ruminant coccidiosis, neosporosis, toxoplasmosis, and sacocystosis in ruminants, girdiasis and cryptosporidiois in ruminants, biology, epidemiology and control of GI nematodes in small ruminants, and realistic approaches to parasite control in ruminant livestock.

"The book will be suitable for advanced undergraduate students, as well as postgraduates and research workers in the area of animal nutrition."--BOOK JACKET.