With the current interest in the environmental and economic sustainability of dairy farming, grass forage crops have emerged as a potential solution to some of the nutrient management problems encountered on intensively managed dairy farms. The expansion and reintegration of grass-based systems into the mainstream of dairying systems will require a major shift involving economic, social, and ecological, as well as biological factors. This book examines the role of grass in milk production in sustainable agricultural ecosystems. Issues examined include breeding, management, storage, feeding and economics for both lactating and dry dairy cows. Written by leading specialists from Australia, Europe, New Zealand, North and South America, this volume is a valuable resource for researchers, dairy industry professionals, and advanced students of forage and dairy cattle nutrition.