ISBN 10: 7109282732 ISBN 13: 9787109282735
Sprache: Englisch
Anbieter: liu xing, Nanjing, JS, China
paperback. Zustand: New. Paperback. Pub Date: 2021-06 Pages: 134 Language: Chinese Publisher: China Agriculture Press The first part of this book analyzes the development situation of the laying hen industry. It first analyzes the development situation of the world laying hen industry. compares it with the laying hen industry in the United States and Japan. and sorts out the changes and trends in the world poultry industry. It evaluates the development level of China's laying hen industry. and then comprehensively re.