The present invention relates to a feedstuff and a manufacturing method thereof. The feedstuff according to one embodiment of the present invention can be prepared by aging mixture powder containing Opuntia humifusa, crab shells, rice straws, corn, and soybean. The manufacturing method according to one embodiment of the present invention includes a step of preparing mixture powder and a step of aging the mixture powder. The Opuntia humifusa, crab shells, corn, and soybean are pulverized in 100-100 mesh and the rice straws are pulverized in 1000-3000 mesh. [Reference numerals] (AA) Step of drying and sterilizing Opuntia humifusa, crab shells, rice straws, corn, and soybean； (BB) Step of pulverizing the Opuntia humifusa, the crab shells, the rice straws, the corn, and the soybean； (CC) Step of preparing mixed powder including the Opuntia humifusa, the crab shells, the rice straws, the corn, and the soybean； (DD) Step of ripening the mixed powder본 발명은 가축사료 및 그 제조방법에 관한 것으로, 본 발명의 일 실시형태에 따른 가축사료는 천년초, 게 껍질, 볏짚, 옥수수 및 대두박을 포함하는 혼합 분말이 숙성되어 형성될 수 있다.
