Yellow Lake Hairy Crab

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    The origin of the Yellow Lake hairy crabs is Susong County, Anhui Province, with a latitude of 29°47′-30°25′ north and a longitude of 115°52′-116°34′. The Huayang River water system is interconnected by the Yellow Lake, Daguan Lake, Longgan Lake, and the lake waters and ponds in the adjacent waters, with a total area of ​​838,000 mu.
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The Yellow Lake Hairy Crab belongs to the authentic Yangtze River Chinese mitten crab line. From the appearance point of view, the Huanghu brand hairy crab consists of three parts: the head and chest (crab shell), the abdomen (umbilical) and the chest and paw (paw). It grows fast and has a full body. The maximum size of a single male crab is 1 kg, and the female crab is nearly 8 Two. In addition to the superior geographical environment and abundant aquatic resources of Susong, the meat is tender, delicious and has high nutritional value. Each 100 grams of fresh meat contains 14 grams of protein, 5.9 grams of fat, 7 grams of carbohydrates, and is also rich in nucleus. The minerals and vitamins required by the human body such as flavin, vitamin A, calcium, potassium, iron, etc., whose quality characteristics are known as "green shell white board, golden claw yellow hair, a large body fat, rich in nutrients", can be called Susong Today's aquarium "new upstart" is highly favored.

There are many hairy crabs in Susong County, Anqing City. Among them, Huanghu brand hairy crabs are large and fat, which is tender and fresh. It is rich in riboflavin, vitamin A, protein, lipid, thiamine, mud acid and calcium. Phosphorus, iron and other nutrients required by the human body, high quality and low price, is the most Chinese crab, and is popular among crabs and diners at home and abroad. Yellow Lake hairy crabs accounted for one-third of Shanghai Port's exports, and one-fifth of the country's exports, which are sold well in Hong Kong, Japan, the United States, and Southeast Asia, and are named after the Hong Kong market. In 1997, it was awarded the title of “Anwei Famous Brand Agricultural Products” by the People's Government of Anwei Province. Yellow Lake hairy crabs are produced in the waters of Neihu Lake in Susong County. Susong County is called Songzhou State, and it was built in the Western Han Dynasty. It is about 2,200 years old. It is located at the junction of the southern part of Dabie Mountain, the three provinces of Yunnan, Hubei and Anhui. It is the southwest gateway of Anhui. The geographic coordinates are between 115.52' and 116.34' east, and between 29.47' and 30.25' north latitude. Hejiu Railway, Hurong Expressway and National Highway 105 pass through the city. It is within 2 hours from Wuhan International Airport and Hefei, Anqing, Jiujiang and Nanchang Airports. Coverage, forming a criss-crossing traffic network, and the 63-kilometer section of the Yangtze River, known as the “Golden Waterway”, is accompanied by a flow of rivers. The county governs 22 townships, 2 development zones, and 207 administrative villages with a total population of 821,063, with a total area of ​​2,393.53 square kilometers, including 640,000 mu of arable land, 730,000 mu of mountain land, and 840,000 mu of water. It is rich in natural resources. The Yishui freshwater area ranks second in the country and the first in Anhui in the county-level ranking. The four lakes of Bohu Lake, Daguan Lake and Longgan Lake, represented by the Yellow Lake, are naturally integrated into one, with a total area of ​​785,000 mu. The lake area is rich in aquatic vegetation and rich in benthic resources. Susong County has a long history of operating fisheries. In the early Qing Dynasty, the lower reaches of the Republic of China, the lower Cangjie, Xujialing, Zuoba and Wangchangzui along the lake were all fish markets where merchants gathered. Silverfish, shrimp, brine fish and other aquatic products were sold in Shanghai. , Ning, Yi, Han and other cities along the Yangtze River, and with the local tobacco leaves are exported to Nanyang. However, the river crab has been inhabited by the Yangtze River and the Huayang River for a long time, and it has entered the Susong Neihu Lake, and it has naturally spread and produced. Therefore, there is no large-scale production and marketing of the crab farming industry. The development footprint of the Yellow Lake hairy crabs must be divided into four stages according to the time series from the mid-1970s: The first stage: the natural fishing period (before 1991) The mid-1970s. The second stage: the exploration of the flood season (1991-1999). The third stage: the reform period (2000-2006). The fourth stage: the period of scientific development (2007 to the present).

Technical requirements for quality of Yellow Lake hairy crabs I. Provenance of Eriocheir sinensis in the Yangtze River system. Second, the growth environment water quality meets the national fishery water quality standards. The pond culture depth is 1.0m to 2.0m, the lake water depth is ≤3.0m, the water body transparency is ≥30cm, the pH value is 6.5 to 7.5, the dissolved oxygen is ≥5.0 mg/L, and the water grass coverage is ≥40%. Third, aquaculture management Crab species source: The parents are selected from the Yangtze River water system, and the crab species are selected from the production area or the river crab breeding field in Chongming County, Shanghai. 2. Breeding methods: (1) Polyculture of lakes within the producing area. (2) Pond culture in the area of ​​origin. 3. Crab stocking: (1) Stocking time: From early February to late March, the water temperature is 8 °C to 12 °C stocking. (2) Stocking specifications: 120 mixed/kg to 300/kg in ponds; 80/kg to 120/kg in ponds. (3) Stocking density: 20 to 60 per 667 m2 (mu) of pond polyculture; 500 to 800 per 667 m2 (mu) of pond culture. 4. Feeding: (1) Polyculture of lakes: Eat ground animals such as snails and snails and submerged plants in natural waters. (2) Pond culture: feeding plant-based bait such as wheat and corn, animal bait such as small fish and snails, and special compound feed for river crab. 5. Environmental and safety requirements: Feeding environment, prevention and control of epidemic diseases must implement relevant national regulations and must not pollute the environment. IV. Fishing (1) Starting time: The mixed fishing time of the lake is from late September to early November, and the pond fishing time is from early September to late November. (2) Starting specifications: female crab ≥100g/only, male crab ≥150g/only. V. Quality characteristics 1. Sensory features: green back, white belly, golden claws, yellow hair. The palate is meaty and the meat is sweet and fresh. 2. Crude fat female crab ≥ 5.9%, male crab ≥ 6.5%. 3. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

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Producers within the production area of ​​Huanghu hairy crabs may apply to the Quality and Technical Supervision Bureau of Susong County, Anhui Province for the use of “Special Marks for Geographical Indication Products”, which shall be reviewed by the Anhui Provincial Bureau of Quality and Technical Supervision and announced to the General Administration of Quality Supervision, Inspection and Quarantine for approval. . The testing mechanism of the Yellow Lake hairy crabs is selected by the Anhui Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.