Zai kuan qing (5 Ergebnisse)

paperback. Zustand: New. Paperback. Pub Date :2014-01-01 Pages: 145 Language: Chinese Publisher: Machinery Industry Press fisheries are an important part of China's large agriculture. Our aquaculture has since reform and opening up unprecedented development. has become the world's great nations and great farming agricultural economic development is an important growth point. In the 21st century. China's aquaculture still maintained a strong momentum of development for the prosperity of the rural economy and populatio.…

paperback. Zustand: New. Language:Chinese.Pages Number: 347 Publisher: scientific literature Pub. Date :2010-9-1. This book lists a wide range of different regions and different ways of eel aquaculture production of specific instances of its breeding experience for readers of farmed eel can have a more direct . more vivid understanding. which will help to carry out aquaculture production of eels. In order to enable readers to see these examples in conjunction with the conditions to carry out its own eel aquaculture p.…

paperback. Zustand: New. Paperback. Pub Date :2014-01-01 Pages: 182 Language: Chinese Publisher: China Machine Press efficient farming rich train: eel efficient farming techniques and examples of fine solution (color printing) system introduced in the artificial breeding technology eel The main contents are: biological characteristics of eel. artificial breeding technology to capture. transport. store support and winter. disease control. cultivation of feed and so on. Efficient rich culture train: eel farming techniq.…

paperback. Zustand: New. Language:Chinese.Pages Number: 328 Publisher: scientific literature Pub. Date :2010-9-1. This book lists a wide range of different regions and different ways of farming loach production instance and its culture of specific experience for readers of the loach artificial breeding can have a more direct . more vivid understanding. which will help to carry out aquaculture production of loach. In order to enable readers to see these examples in conjunction with its own conditions to carry out aqua.…

paperback. Zustand: New. Language:Chinese.Paperback. Pub Date: 2017-06-01 Pages: $number Publisher: Machinery Industry Publishing House The book is based on the various key problems that occur frequently in the production of Loach. and the method of direct answer is put forward by using questions. This paper answers the key technical problems and operating procedures of the whole process of artificial rearing of loach. so that readers can quickly grasp the focus and main points of the cultured loach. …