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How to stock fry in cage culture of yellow catfish
I) Preparation before stocking fry 1. Preparation of cages of different specifications Cages of corresponding specifications should be prepared according to the size of the fry to be stocked. If the stocking size is 2 cm, second- or third-stage fry cages and second-stage grow-out cages should be prepared; for fry of 5 cm, second-stage fingerling and second-stage grow-out cages should be prepared
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What stocking density is suitable for yellow catfish farming?
I think many people enjoy eating yellow catfish, and the nutritional value of yellow catfish is also very good. In particular, the soup made from yellow catfish has a very high protein content, so eating fish regularly is very beneficial to the human body. Therefore, the current market prospects for yellow catfish are quite good. Farming
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Overwintering management techniques for freshwater pomfret fry and fingerlings after being stocked into ponds
1. Overwintering pond preparation: area 600-1500 sq m, pond depth 1.5 m; the pond water in the Pukou District area of Nanjing is geothermal spring water, flowing into the pond in a slight current; the inlet pipe is 10 cm, and the mud at the pond bottom is 10 cm thick. After drying the pond and disinfecting it, fill with water. Each pond is equipped with two 3-kilowatt aerators. 2. Pomfret fry and fingerlings
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What preparatory work is needed before stocking Pacific white shrimp
The preparatory work before stocking Pacific white shrimp mainly includes repairing the shrimp ponds, drainage and irrigation systems and other production facilities, clearing the ponds with chemicals, and cultivating basic bait organisms. I. Shrimp pond preparation (1) Drying the pond The purpose is to restore the pond bottom. Generally, after harvest, the pond water should be drained
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What are the points to note when stocking freshwater crayfish?
In recent years, crayfish have become a darling of the dining table, with their value multiplying. It is predicted that the crayfish market will not become saturated within the next 5 years, and crayfish farming is rapidly expanding in various places. After several years of production practice, the author believes that the following points should be noted when stocking crayfish:
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What are the precautions for stocking seed shrimp in rice-field shrimp farming?
The technique of farming shrimp in rice fields is now becoming more and more widely spread, and it has also tended to mature. Many people who have adopted the method of farming shrimp in rice fields have achieved very good returns, and the method of using one field for two purposes can maximize the role of the field! Rice-field shrimp
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Six key considerations for stocking shrimp fry in shrimp farming
As shrimp enter the peak harvest period in various regions, most shrimp farmers have by now finished the first crop of production, and many have entered the fry stocking stage for the second crop of shrimp farming. The author introduces the current key considerations for shrimp fry stocking as follows, for reference by peers.
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What are the precautions for freshwater shrimp (Macrobrachium nipponense) farming in spring?
1. Timely split stocking. When the water temperature rises above 20°C, freshwater shrimp begin molting, and at this time the shrimp body is easily bruised and infected. Before stocking, do a good job of drying the pond, and use quicklime, active iodine and other drugs for rapid disinfection; for ponds with moss, green algae, and blue-green algae, spray the entire pond once with copper sulfate.
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Key Technical Points for Planting Grass and Stocking Snails in Crab Culture Ponds
With the expansion of crab culture scale and the improvement of intensive farming levels, the water quality of aquaculture waters has deteriorated, the quality of river crabs has declined, and diseases have worsened, affecting the improvement of river crab culture benefits. In recent years, Dalong Township, Dafeng City, Jiangsu, has adopted the method of planting grass and stocking snails to culture river crabs.
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Key Technical Points for Rearing Snakehead Fry in Net Cages
1. Stocking density: generally 600-700 3-cm summer fry per square meter, with a harvest size of about 6-8 cm. The summer fry stocked must be strictly graded and screened so that the size is uniform at stocking, and the stocking density should be adjusted appropriately according to size. 2. Feed and feeding
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