“Zhongzhong Ball Creek Squid” is one of the most famous dishes in Sichuan cuisine. It is world-famous and the annual output value of squid catering industry exceeds one billion yuan. The squid is also called 鲶巴郎. This kind of fish has a very large mouth and a long beard on the lips, so it is also called a beard. This kind of fish is smooth and oily, with no scales on the whole body, less prickly meat, fine and delicious meat, and almost no earthy taste.

The head of the carp is wide and flat, the chest and abdomen are short and thick, the tail is long and the side is flat; the surface is smooth and scaleless, the skin is rich in mucus; the eye is small and the mouth is large, hence the name; 2 on each side of the nostril, the front and rear nostrils are far apart, the front nostril Short tubular, located at the end of the kiss, the posterior nostril is round and located at the front of the eye. The upper and lower jaws are distributed with inwardly barbed serpents; adult fish must have 2 pairs; juvenile fish must have 3 pairs; caudal fins are concave in the middle, upper and lower leaves are asymmetrical, upper leaves are longer than lower leaves; intestines are short, have stomach; back The body side is usually taupe or yellowish brown, the abdomen is grayish white, with black dots, and the fins are grayish black. Edible value The carp is rich in nutrients. In addition to the high content of DHA, calcium, phosphorus, vitamin A and vitamin D are also abundant. Various amino acids are more abundant than ordinary freshwater fish. It has medicinal properties of nourishing yin, appetizing, diuretic and swelling. Historical development The capital is rich in squid and has a long history. A two-meter-long squid fossil exhibited at the Zizhong Museum has a history of tens of thousands of years; the squid fossils discovered in the large cave of the Holy Spirit Mountain in Zizhong have pushed the time forward for tens of millions of years; The sculpture pattern of the squid jumping dragon gate also tells the story of the carp in the capital. In Zizhong County, Sichuan Province, the company has established a brand of national-level aquatic healthy breeding demonstrations in 2013, and has established one green fish food certification mark and 15 fishery professional cooperatives, which has driven more than 1,000 farmers. Household. More than 150 squid restaurants have been developed, with an annual sales of 4,200 tons of squid. The first is to make the squid base bigger and stronger. In the Dafogou Village of Qixi Town, Liyu Village of Yuxi Town, Jinzipu Village of Yinshan Town, Yanyingzui Village of Taiping Town, etc., the demonstration base of carp healthy breeding with a total area of ​​more than 1,000 mu will be built to form the characteristic breeding of carp. group. Firstly, a national-level protected area of ​​fishery germplasm resources based on carp was established in Mengxi River, and artificial proliferation and release were carried out for four consecutive years to increase the number of populations. Secondly, it was necessary to effectively protect spring breeding and ban fishing. District, the implementation of artificial protection, the establishment of 500 acres of wild carp culture areas in the upper reaches of the Wulidian section of the Minjiang River to curb the decline in the natural production of carp; organize special forces to carry out inspections, crack down on illegal fishing activities in key river basins, and effectively strengthen the protection of squid resources . The third is to develop the second and third industries of squid. Vigorously develop the catering enterprise represented by “Zhangma squid catering limited liability company” in Zizhong County, carry out training in food development and cooking technology, develop catering chain stores, expand marketing network, implement unified packaging and distribution, and improve market competitiveness.

Quality technical requirements for squid in Zizhong (1) Variety. Southern scorpion (Silurus soldatovi meridionalis Chen). (2) Seeds. It is from the qualified quarantine seedlings in Zizhong County. (3) Breeding. 1. Aquaculture environment: Aquaculture ponds require fresh water, rich dissolved oxygen, and water body transparency should be controlled above 30cm. The pond depth should be controlled from 0.8m to 1.2m in the early stage and 1.0m to 2.0m in the middle and late stages. The high water level should be maintained during the high temperature season. Change the water every 10 days to 15 days, each time the water change is more than 20cm. At noon on a sunny day, open an aerator to adjust the water quality. Pay attention to prevent the lack of oxygen floating head and start the oxygen in time. 2. Breeding mode: adopting the southern big mouth bream and the carp and carp cultivating and cultivating mode. 3. Food and domestication: The fish species that were bred in the pond during the year were first fed with a compound feed supplemented with an attractant (smashed fresh fish gill) for food reincarnation, and gradually increased with the growth of the fish body. Excessive to all feeding artificial compound feed (protein ≥ 40%). After 20 days of stocking, the fish species were screened once, and the oversized or undersized fish species were removed, so that the fish species stocked in the same pond were neatly sized. Feeding should be set up, feed twice a day, 8 am to 9 am, 5 pm to 6 pm, the daily feeding amount is 5% to 8% of the total weight of the fish, feeding the feed according to the water temperature The weather and the eating conditions of the fish are adjusted. 4. Fishing specifications: 1.5kg or more. 5. Environmental and safety requirements: The prevention and control of the breeding environment and epidemic diseases must comply with relevant national regulations and must not pollute the environment. (4) Quality characteristics. 1. Sensory characteristics: the body surface is light yellow, with spots, the body surface is mucous, the head is wide and wide, the upper and lower jaws have four whiskers, the eyeballs are transparent and full, the silk is bright, clear, no smell, and the muscles are tight and elastic. 2. Physical and chemical indicators: project index protein ≥ 17.0% fat ≤ 9.0% total amino acid ≥ 14.0% 3. Safety requirements: Product safety indicators must meet the relevant regulations of the state for similar products.

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Producers within the scope of protection of squid GI products may submit an application to the Zizhong County Quality and Technical Supervision Bureau of Sichuan Province for the use of the “Special Mark for Geographical Indication Products”, which is approved by the Sichuan Quality and Technical Supervision Bureau and approved by the AQSIQ. . The statutory testing agency for the squid in Zizhong is designated by the Sichuan Provincial Bureau of Quality and Technical Supervision.