Hafez' well-known text, in a new 6th edition, provides agricultural science students, vet tech students and reproductive medicine specialists with the present status of all basic and comparative aspects of reproductive physiology. New to this edition is coverage on embryo transfer, and material on reproductive physiology consolidated into four chapters. The book's international contributorship gives it broad topic coverage, spanning: functional anatomy of reproduction; physiology of reproductive failure; reproductive cycles; and techniques for improving reproductive efficiency. The book's strength is its clarity of presentation, price and currency. It has been reorganized to reduce size (with four chapters deleted) and improve accessibility. Line drawings, a glossary of reproductive biology and a glossary of abbreviations round out the presentation.