Pressures to maximize the use of forages in ruminant diets have renewed interest in fast, inexpensive methods for the estimation of their nutritional value. As a result, a wide variety of physio-chemical procedures have been investigated for this purpose. This book addresses the status of these procedures, and their potential and limitations. It covers such topics as: the importance of forage evaluation for man and animal; estimating the energy and protein value of forages; physio-chemical approaches; and minerals, antinutritive and other factors.

Addressing principles associated with breeding animals for enhanced health and resistance to specific diseases, this new edition provides an updated review of the field and is illustrated with examples covering many diseases of importance to livestock production across all major livestock species. Authored by experts in the field, the book covers techniques and approaches, viruses, TSEs, bacteria, parasites, vectors, and broader health issues seen in production systems, including metabolic diseases. The book will be an essential reference for professionals in the field, scientists and researchers, students, breeders, vets, agricultural advisors and policymakers.