Processing Technology of Sinking Aquatic Feed

According to the feeding characteristics of different aquatic animals, for example, benthic animals such as river crabs are used to looking for food at the bottom of the water, and adopt a slower gnawing method. In this way, the required feed particles should not be too hard or too strong, and the feed should be kept as low as possible. Loss caused by fine debris produced during gnawing. From this point of view, extruded sinking feed is more suitable: extruded sinking pellet feed is easy to absorb water and soften, suitable for gnawing, and can also reduce the loss of debris generated during gnawing, reducing feed waste and water pollution. Moreover, the extruded feed has a long water resistance time and a high degree of maturity. Twin-screw wet extruders are commonly used in the production of extruded feed. There are many factors affecting the expansion of the material, but it is mainly related to the quenching and tempering conditions, the operating conditions of the extruder and the properties of the material. Changing the extrusion conditions can control the ups and downs of the extruded feed.