ISBN: 9787810028523 - 科学养鸡一月通 (1 risultati)

paperback. Condizione: New. Paperback Pages Number: 177 Language: Chinese. Science and chicken from January through Chapter 5. The main contents are: improved varieties of chicken farms in health measures and disease control. chicken feed and nutritional needs. feeding and management technology of laying hens. broiler feeding and management technology. broiler production and operation management. Characteristics of the book is the practical problems. according to the different phases and periods of laying hens. broiler .…