As previously mentioned (Tables 14 and 15), most of the people's communes have set up small industries. Since fish culture is currently turning toward mechanization, an increasing number of these industries are showing an interest in producing fish culture equipment. In Shanghai, the study group visited the factory run by the ‘Liberation’ People's Commune (Qingpu district), which manufactures this type of equipment in four workshops and employs 400 persons.
Production is varied and includes:
The manufacture of floating granules was demonstrated using a press fitted with a 7.7-hp (11 kW) electric motor, which produced an average of 150 kg/h of grass carp feed (Section 7.1) This device was selling at Y 15 000.
Aquatic products from inland water areas in China are only rarely treated, e.g., using ice to improve storage. For marine products however, the treatments are many and varied to cover production of different sub-products to be consumed locally or for export.
The study group visited the Shanghai Treatment Plant for Aquatic Products, where 1 800 employees can treat a daily average of 200 t of fish (fresh or frozen) and transform them into 43 different products (Figure 75). The plant is sub-divided into six specialized workshops as follows:
