The donkey-hide gelatin of yellow croaker can be made casually. It is recommended to stew (boil) with some rock sugar and ginger slices. If you want to make the swim bladder into gelatin, it will be easier. Take out the swim bladder, cut off the fish head, take out the intima, clean up the bloodshot and blood clots, then wash and dry.

Yellow croaker is divided into large yellow croaker and small yellow croaker, which is one of the four major marine species in China. Pseudosciaena crocea is also called Daxian, Jinlong, Huanggua Fish, Red Melon, Huang Jinlong, Osmanthus crocea, King Fish and rhubarb. Small yellow croaker is also called Plum, Plum Fish, Wang Xiaoyu, Xiaoxian, Koharu Fish, Small Yellow Croaker, Thick Scaled Fish and Flower Fish. They all belong to teleost, Perciformes, Sciaenidae and Pseudosciaena crocea.

Pseudosciaena crocea was once one of the important economic fish in China, and it was endemic to China. It starts from the south of the Yellow Sea in the north, passes through the East China Sea and the Taiwan Province Strait, and reaches the east of Leizhou Peninsula in the South China Sea in the south. The fish is a gregarious fish in warm temperate zone, and often inhabits the middle and lower layers of offshore waters within 60 meters. The breeding season of large yellow croaker is spring and autumn. During the breeding period, fish migrate from the open sea to the offshore in batches. As a precious economic fish, Pseudosciaena crocea has long been favored by consumers.