ISBN: 9787109103771 - 无公害虹鳟标准化生产 戈贤平 9787109103771 (1 risultati)

paperback. Condizione: New. Paperback. Pub Date: 2006 Pages: 155 Publisher: China Agriculture Press the pollution steelhead standardized production for the production situation and development trend of the rainbow trout from rainbow trout the pollution breeding technology system discussed. Book. Chapter 8 describes the biological characteristics of the rainbow trout. nutritional needs and feeding technology. pollution-free aquaculture basic knowledge of the requirements of environmental quality; detailed pollution steel. …