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Key Technical Points for Fry Rearing in Yellow Catfish Aquaculture
Rearing yellow catfish fry (commonly known as "water flowers") with a body length of 1.5-1.2 cm to fry of 5-6 cm in size (known as "fire-flake fingerlings") takes about half a month. The rearing methods at this stage include pond rearing, flowing-water tank rearing and net-cage rearing. Compared with fingerling rearing
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Methods and Technical Key Points for Polyculture of Yellow Catfish in Ponds
Polyculture of yellow catfish in ponds is also called pond supplementary culture or pond mixed culture of yellow catfish, which can be yellow catfish (Pelteobagrus fulvidraco) or darkbarbel catfish (Pelteobagrus vachelli). Because yellow catfish has strong environmental adaptability, the aquaculture technology for polyculture of yellow catfish is relatively simple. (I) Pond condition requirements According to the
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Technical Key Points for Constructing Flow-Through Aquaculture Ponds for Yellow Catfish
1) Water quality and water source 1. Water quality requirements The water quality for flow-through aquaculture of yellow catfish must be tested before deciding on the aquaculture operation, to see whether the water quality meets the pollution-free aquaculture water quality standards. For example, whether the waste hot water discharged from industrial production has been polluted by industrial oil, etc., and whether the minerals contained in underground hot spring water exceed the standard, are all objects of attention.
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Detailed Explanation of Key Technical Points for Pollution-Free Sea Bass Farming
1. Farming waters: Farming waters generally require a water depth of 2 m-2.5 m. Half a month before releasing the fry, spread quicklime over the surrounding farming waters to disinfect them. 2. Stocking density and disinfection of fry and fingerlings: The stocking size is 0.5 g/fish-0.6 g/fish, and the stocking density is 100 fish/mu-120 fish/sq m. Before
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Experience and Technical Key Points for Pond Farming of Bass
1. Pond clearing and water cultivation. For ponds used to farm bass, it is best if conditions allow to dry the pond, remove silt and expose it to sunlight, especially for old ponds that have been farmed for many years. Disinfect once half a month before releasing fry, applying 50 kg of quicklime per mu or using 20 PPM bleaching powder with an appropriate amount of pond water for disinfection.
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Key Technical Points for Summer Stocking of Largemouth Bass in Ponds
1. Pond drying and disinfection. Aquaculture ponds must be drained and dried for 10-15 days, the pond embankments repaired, and quicklime or bleaching powder used for disinfection. 2. Fingerling rearing. First, use early-breeding fry from Guangdong raised in dedicated ponds from late April to early May, and divide them into separate ponds when they reach about 5 cm; second, use locally self-bred largemouth bass, and select fingerlings that are robust, uniform in size, healthy and disease-free. Stocking density is 800-1200 fish per mu.
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Key Technical Points for Pollution-Free Cage Culture of Bass
1. Culture water area The culture water area generally requires a water depth of 2 m-2.5 m. Half a month before stocking fry, quicklime is spread over the surrounding water area for disinfection. 2. Stocking density and disinfection of fry and fingerlings The stocking size is 0.5 g/fish-0.6 g/fish, and the stocking density is 100 fish/mu-120 fish/sq m. Stock
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How to Raise Sea Bass Healthily? Master These Technical Key Points
Sea bass, also known as Japanese sea bass or seven-star bass, belongs taxonomically to the order Perciformes, family Lateolabracidae. Because it breeds and grows in coastal waters, unlike the largemouth bass and Mandarin bass that grow in freshwater, it is also called sea bass. Sea bass is a fierce carnivorous fish that naturally feeds on small fish and shrimp. In artificial
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Detailed Explanation of Key Technical Points for Bighead Carp Cage Culture
Cage fish farming technology is a three-dimensional aquaculture technique that makes full use of reservoir resources. It has the advantages of low farming cost and high benefits, and is deeply favored by the vast number of fish farmers. Among them, the technique of using cages to culture bighead carp is one of the most profitable among many farming projects.
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Technical Key Points for Cage Culture of Bighead Carp in Reservoirs
I. Cage Structure The cage material is polyethylene, the netting twine diameter is 1.13 mm, the mesh size is 35 cm, the cage specifications are 4 m x 7 m x 2 m, a single-layer cage is adopted, the frame is bamboo poles, the bamboo pole diameter is about 10 cm, several are connected as one unit, and fixed with sinkers.
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