The squid, alias Sanli fish, Sanlai fish and Shiyu fish, is a rare species of migratory fish of the genus Pelicanidae. It has a longer body, flat and high side, medium to large head, large mouth, sharp kiss, large and thin scales, and ribbed scales on the abdomen. The head and back are gray, with a bluish-green luster on the side of the body and white silver on both sides of the body and abdomen. The general body length is 25-40 cm, a body weight is 1-1.5 kg, and the largest individual is about 3.5-4 kg. Carp is a brackish and freshwater migratory fish that is distributed in the Yellow Sea, East China Sea and South China Sea. In freshwater it is distributed in the Yangtze River, Xiangjiang River, Minjiang River, Qiantang River, and Pearl River. Every spring and summer, it enters rivers from the sea, spawns and breeds, and comes in seasons. The season is very accurate, so it is named after the squid. The squid is a warm water pelagic fish, and has a wide range of temperature adaptation. The suitable temperature is 2°C-38°C, and the optimum water temperature is 22°C-32°C. It is an anadromous fish species, has in-depth river bait and cluster spawning habits, bait feed mostly plankton, such as rotifers, copepods, sword water crickets, basal carp, etc., but also feeding diatoms and Other organic crumbs and eating young fish and shrimp. However, under conditions of artificial breeding, large amounts of protein-rich pellets are also eaten, even at night. The economic value of carp is high. Its meat is tender, soft and smooth, fish tastes delicious, unique flavor, rich in nutrition. According to the analysis, every 100 grams of fish contains 16.9 grams of protein, but also rich in fatty acids and carbohydrates, ash, calcium, phosphorus, iron, riboflavin, niacin and other nutrients, showing its high nutritional value. The squid also has medicinal value. According to some medical records, the squid is sweet and warm, has nourishing and strengthening the human body function, and can not only replenish qi and labor, warm the spleen and nourish the lungs, but also has beneficial effects such as swelling, anti-inflammatory and detoxification, etc. Therefore, in ancient times, the squid was a supplement to the local tribute to the imperial court and was included in the Imperial cuisine. However, in recent years, due to various reasons such as the overfishing of the broodstock and the world fish of feeding and feeding, and the increasing pollution of rivers and waters, the natural resources of squid drastically decreased. Therefore, the development of artificial breeding is imperative. According to research and experiments, squid can be cultured artificially. According to the trial experience, the breeding methods mainly include the following: First, pond pure breeding (ie, monoculture), but a small amount of carp and whitefish can be matched to control the water quality. The pond area is 3-5 mu and the water depth is 1.5 meters. The second is polyculture. The stocking of common carp in catfish ponds, home fish ponds, or other high-quality fish ponds can not only effectively control zooplankton and other over-breeding, but also help regulate water quality, increase fish production, and increase economic efficiency. In addition, reservoirs, lakes, and large-area ponds can also be used for aquaculture, but fish stocking specifications should be slightly larger, and better economic benefits can be obtained by breeding and strengthening management through various methods. For example, according to the experience of the trials, the pure pond culture, the 3-4 cm fry per acre stocking size of 1300-1500 tails, the survival rate of 90%, per mu production of about 1000 kg or more.