As one of the fastest growing food processing industry in the world, aquaculture has provided more than half of all aquatic products for human consumption. The rapid and healthy development of aquaculture industry can hardly do without the support of artificial breeding technology, knowledge of nutritional requirement to aquatic animals, aquafeed processing technology, feed production equipment and so on. Over the past years, the technique of fish feed production has proceeded rapidly and most aquaculture farmers are fond of using floating extruded pellet to feed their fish because floating feed makes it easier for them to observe fish intake and estimate feeding amount. Here, Amisy Fish Feed Machinery will state the processing technology and equipment of aquafeed and put forward some suggestions.
Compared with other animal feed, aquafeed has higher requirements in respect of feed nutrition and physical characteristics (including feed pellet shape, size, density, stability in water and so on), therefore, it is the appropriate feed processing technology and fish food making machines that plays a key role in producing healthy and nutrient aqua feed according to customers specific requirements. As the leading fish feed machines and production line manufacturer, Amisy can provide aquafeed processing equipment from raw material processing to finished feed bagging.
In general, there are three types crushing technologies, including collocation after grinding raw materials, grinding after ingredients mixing, and combination of the two. With the purpose of producing high quality aquafeed meeting the growing demand of aquatic life, it is desinging the crushing procedure of aquaculture feed that becomes the priority among priorities.
Mixing technique is very worthwhile to be concerned in the manufacturing process of aquatic feed. Because the daily food consumption of most aquatic animals is little, it is very necessary to make high quality mixing feed with uniform nutritional ingredient so as to ensure fish can get complete nutrient from daily ingestion. The mixing uniformity is affected by several factors, including raw materials feature, mixing time and blending equipment.
Generally, there are two types aquafeed extrusion machines, including dry type fish feed extruder and wet type fish feed extruder, which can be adopted to produce floating, sinking and slow-sinking aquatic feed to meet the ingestion requirements of diverse aqua animals. When choosing dry or wet type extruder, it is necessary to consider the water content of feed raw materials because the biggest difference between the two machines is that the wet one is equipped with a boiler for adding water or steam in the production processing.
For easy storage, it is indispensable to dry or cool aquafeed after pelleting and extruding. In Amisy, there is a multilayer mesh belt dryer that is specially designed for drying feed pellets. With circulation fan, heating device, fresh air suction and exhaust discharging system, this drying machine can be used to transfer pellets into chamber for heating so as to reduce water content of feed and lower temperature. Before finished, aquafeed pellets should be cooled after drying.
