Preparation method of extruded full-fat rapeseeds used, extruded full-fat rapeseeds and chicken poultry feed

The invention provides a preparation method of extruded full-fat rapeseeds used for a chicken poultry feed, the extruded full-fat rapeseeds used for the chicken poultry feed, and the chicken poultry feed. The preparation method of the extruded full-fat rapeseeds used for the chicken poultry feed comprises the following steps: extruding rapeseeds by adopting a double-screw extruder to obtain extrudate, wherein the technological parameters of the double-screw extruder is as follows: 14-16% of water is added to the rapeseeds, the rotation speed of screws is 204-292 rpm, the size of die holes is 2-4 mm<2>, and an extrusion cavity is provided with a first temperature zone, a second temperature zone and a third temperature zone with sequentially increased temperatures, and the set temperature ofthe third temperature zone is 90-100 DEG C; and cooling and airing the obtained extrudate so as to obtain the extruded full-fat rapeseeds used for the chicken poultry feed. The method can prevent materials from being blocked, prevent the loss of nutrients such as rapeseed oil, and prevent the nutrients from being oxidized and diluted, and can remove toxic substances.