The present invention relates to a puffed product and supplementary animal feed, ensuring increased value for use. According to the present invention, the puffed product is prepared by the following steps: adding EDTA to fat-containing raw materials for animal feed including raw rice bran, whole soybean oil, ground products of lupine seed or cottonseed seed and then finely pulverizing the same； extrusion-molding the same in a pellet form.본 발명은 동물사료용 유지함유 원료물질로서 생미강, 전지대두유, 루핀콩 또는 면실종자분쇄물에 EDTA를 첨가하여 미분쇄 분말화하고 이를 압출성형하여 펠렛화되는 퍼핑물(puffs)과 동물 보조사료로서 그 이용가치를 증대시킨 뛰어난 효과가 개시된다.
