Good husbandry can only be based on proper scientific understanding of how cows function. This book sets out the scientific principles underlying the animals' body system and shows how it is possible, indeed essential, to manage dairy cattle at maximum economic efficiency and at the same time give due regard for their welfare. The value of dairy produce in both the underdeveloped and developed world should makes this book of interest to undergraduate students, those teaching animal husbandry and a wider general audience.