How Much Is Razor Clam per Jin Now? Detailed Guide to Farming Techniques
Razor clam, also known as the Sishitong or madao, is a common type of seafood found along the coastal areas of northern and southern China. Because of its abundant meat and high nutritional value, it is deeply loved by people, and it is now being farmed artificially in many regions. So how much does one jin of razor clam cost now? What are the farming techniques?
I. Introduction to Razor Clam:
1. Why does sprinkling salt make razor clams come out?
Razor clams cannot tolerate high salinity; they grow best when the salt content is generally 0.4%-2.8%. The sodium ions in table salt change the razor clam's living environment, so each time salt is sprinkled at the hole, it immediately jumps out. This is also why people like to use the salt-sprinkling method to harvest razor clams.
2. What is the black line inside a razor clam?
The black line inside a razor clam is the intestinal gland and sand sac, located in the very middle part of the razor clam. It contains a large amount of sand or undigested food and excrement after recent feeding, so attention should be paid when eating it.
II. How Much Does One Jin of Razor Clam Cost Now?
The market price of razor clams is somewhat expensive, generally about 13-20 yuan per jin, but due to differences in variety, market, and selling time, there will be certain price differences. For example, at the Xinfadi Agricultural Products Wholesale Market in Fengtai District, Beijing, the price is about 13.5 yuan per jin; at the Beiyuanchun Wholesale Market in Urumqi, Xinjiang, the price is about 20 yuan per jin; at Henan Wanbang International Agricultural Products Logistics Co., Ltd., the price is about 14-25 yuan per jin; at the Beijing Dayanglu Agricultural and Sideline Products Wholesale Market, large razor clams are priced at about 12-15 yuan per jin. If purchased at a supermarket, it may be about 25 yuan per jin; if at an aquatic products wholesale market, it may be about 14 yuan per jin. Therefore, the specific price still needs to be checked at the local market.
III. What Are the Razor Clam Farming Techniques?
1. Site selection and construction: What kind of land is suitable for farming?
Razor clams are suitable for growing in muddy soil with unpolluted water quality, flat terrain, and a slight slope. Therefore, when selecting a site, try to choose unpolluted tidal flats or ponds for farming. After selecting the site, build a farming area 50 m long and 3 m wide according to the terrain, and dig a drainage ditch about 25 cm wide and about 20 cm deep at a row spacing of 1 m, to facilitate later drainage.
2. Seedling selection: What kind of razor clam seedlings are good to choose?
Select some lively and active seedlings with robust constitutions, glossy and plump shells, uniform size, and no broken shells, then soak them in seawater for half an hour to let them spit out sand, and finally place them in the seedling bed.
3. Seedling release: When is the best time to release them?
(1) Seedling release time: In the south, it is generally around Qingming Festival in April, while in the north it is generally in late May.
(2) Preparation before seedling release: Put the razor clam seedlings into a plastic bucket, then wash away the sand with seawater, sprinkle an appropriate amount of bleaching powder, and leave for 2-3 days, finally draining the water in preparation for seedling release. In addition, some tea seed cake should be spread in the field to eliminate small fish, shrimp, snails, and so on, to prevent the razor clam seedlings from being eaten.
(3) Seedling release methods: Two methods can be used for releasing razor clam seedlings: throwing and broadcasting, and scattering. Throwing and broadcasting is suitable for larger sites; simply pick up the razor clam seedlings and evenly scatter them onto the seedling bed, and multiple people can throw them at the same time. Scattering is suitable for small plots; generally, simply pick up the razor clam seedlings gently and scatter them forcefully onto the seedling bed. So which method to use specifically depends on how large your seedling bed is.
4. Field management techniques: How to manage?
(1) Soil quality requirements: Razor clams are suitable for growing in places 30 cm below the sand layer, and the surface should have soft mud several centimeters thick, with mixed mud and sand in the middle and sand at the lowest layer. Therefore, when building a farming site, it is best to ensure that the soil quality reaches the corresponding thickness.
(2) Water quality requirements: Razor clams are suitable for growing in weakly alkaline water with a water temperature of 3-32 degrees and a pH of 8-8.15, so water quality must be kept normal.
(3) Soil raking and plowing: After razor clams have grown for a period of time, harder soil clods should be deeply turned and raked fine to ensure the soil is soft.
(4) Reseeding: After releasing the seedlings, observe the growth situation frequently. For places with no seedlings or overly dense seedlings, promptly reseed and thin the seedlings to ensure the healthy growth of the razor clam seedlings.
(5) Control the temperature well: In summer, before June, evenly spread 1500 kg of sand per mu to regulate the temperature, so that the razor clam seedlings are in a good growing environment.
(6) Pest and enemy control: During razor clam farming, pay attention to enemies such as gobies, Tuci, mud crabs, and water ducks. If enemies have already appeared, a sodium hydride solution can be sprayed for control.
The above is a detailed introduction to the market price and farming techniques of razor clams. I hope it is helpful to everyone.