-
Yellow Catfish Cage Culture Methods and Technical Points
The yellow catfish (Pelteobagrus fulvidraco) is a small-sized freshwater fish with tender flesh, few bones and no scales, a delicious taste and rich nutrition. It is deeply favored by farmers and consumers alike, commands a relatively high market price, is a famous and superior fish with high economic value, and is currently the freshwater
-
What are the key technical points for polyculture of yellow catfish?
The yellow catfish (Pelteobagrus fulvidraco) is a bottom-dwelling omnivorous fish, with delicate flesh, rich nutrition and extremely high economic value, making it a farming species with great market potential. The yellow catfish has strong adaptability and a slower growth rate than cyprinid fish, but grows relatively fast for its own species; fry bred in the same year can reach market size in that same year, and the population yield is relatively high. Because artificial breeding technology is not yet mature, large-scale artificial farming faces certain difficulties, so carrying out polyculture has become imperative. Polyculturing yellow catfish in fish ponds has the following advantages: First, it can feed on low-value small miscellaneous fish and shrimp, residual feed of fish, organic debris, zooplankton, etc. in the pond, increasing the net yield of the pond. Second, the yellow catfish feeds on parasites such as Lernaea in the water, which can reduce the occurrence of fish diseases. Third, without affecting the yield of the main cultured species, adding 5 kg to 20 kg of yellow catfish per mu can increase the benefit by more than 100 yuan per mu. The polyculture techniques are introduced as follows:</p><p></p><p>I. Polyculture in adult fish ponds</p><p>Polyculturing yellow catfish in adult fish ponds places no strict requirements on the main fish species cultured in the pond. Ponds culturing the four major Chinese carps and ponds mainly culturing feeding fish (such as carp and crucian carp, tilapia, freshwater pomfret) can all be used for polyculturing yellow catfish. The pond area is 20 mu to 30 mu, the water depth is 2 m to 2.5 m, with sufficient water source, good water quality and convenient water injection and drainage. Generally, 40 to 50 yellow catfish are stocked per mu, with a size of 3 cm per fish to 4 cm per fish, which can increase the yellow catfish yield by 5 kg to 8 kg per mu.</p><p>II. Polyculture in broodstock ponds</p><p>Polyculture in broodstock ponds can not only make full use of the water space of the broodstock pond and improve the utilization rate of the broodstock pond, but the yellow catfish can also feed on some small wild fish in the broodstock pond that compete with the broodstock for food and consume oxygen. After the artificial breeding of broodstock is completed, stock 40 to 60 yellow catfish per mu, with a size of 2 cm per fish to 3 cm per fish, which can increase the yellow catfish yield by 6 kg to 10 kg per mu.</p><p>III. Polyculture in adult crab ponds</p><p>Polyculturing yellow catfish in crab ponds can make full use of the natural bait organism resources in the crab pond. Generally, the crab pond area is 30 mu to 50 mu, with a aquatic plant coverage rate of about 50%; after the crab seed is stocked, stock 30 to 50 yellow catfish per mu, with a size of 3 cm per fish to 5 cm per fish, which can increase the yellow catfish yield by 5 kg to 10 kg per mu.</p><p>IV. Polyculture in rivers and ditches</p><p>There are many low-value wild miscellaneous fish in rivers and ditches, and polyculturing yellow catfish can save artificial bait. Generally, stock 40 to 60 yellow catfish per mu, with a size of 2 cm per fish to 4 cm per fish, which can increase the yellow catfish yield by 6 kg to 12 kg per mu.</p><p>V. Polyculture in large water bodies</p><p>Polyculturing yellow catfish in large water bodies gives a high population yield, neither affecting the yield of the main cultured species nor requiring additional bait. Generally, stock 40 to 60 yellow catfish per mu, with a size of 3 cm per fish to 4 cm per fish, which can increase the yellow catfish yield by 8 kg to 15 kg per mu.</p><p>No matter which polyculture method is adopted, the following matters must be noted in farming management:</p><p>I. Maintain a relatively high dissolved oxygen level in the water body. The yellow catfish has relatively high requirements for dissolved oxygen in pond water, so polyculture requires fresh water quality and sufficient dissolved oxygen; during the growing season, new water should be added in a timely manner, and during the high-temperature season, water should be changed frequently; maintaining a slight water flow is even better.</p><p>II. Maintain a reasonable stocking density and stocking size. According to the bait organism biomass in the water body, scientifically and reasonably determine the polyculture ratio and stocking size; generally, 30 to 60 fish per mu is appropriate, with a stocking size of 3 cm per fish to 4 cm per fish. If the density is too high and the size too small, the market size cannot be reached by the end of the year.</p><p>III. After polyculturing yellow catfish in a fish pond, it is no longer suitable to polyculture other carnivorous fish, and yellow catfish should not be polycultured in ponds for farming freshwater prawns or freshwater crayfish.</p><p>IV. During the farming process, if the yellow catfish are found to be too small, it indicates that the natural bait organism biomass in the fish pond is insufficient; small miscellaneous fish and shrimp, summer fry of domestic fish may be appropriately added, or specially formulated artificial yellow catfish bait may be fed. When feeding artificial bait, the main cultured species should be fed first (put into the shallow water area), and then the yellow catfish (put into the deep water area). The yellow catfish has the living habit of hiding by day and coming out at night, so feeding should mainly be done at night.</p><p>V. When polyculturing yellow catfish in crab ponds, because the river crab and yellow catfish occupy the same water layer position ecologically, it is easy to cause competition for ecological position between the two. Therefore, sufficient natural bait organisms must be maintained in the crab pond, otherwise the yellow catfish rearing effect will be affected. In advance, 300 kg to 400 kg of spiral shells per mu can be put into the crab pond, along with some egg-bearing crucian carp and egg-bearing freshwater shrimp, allowing them to reproduce naturally for the river crab and yellow catfish to feed on freely.</p>
-
New Techniques for Yellow Catfish Farming: How to Raise Yellow Catfish Well
1. Pond Conditions Generally, any pond can be used for farming as long as the pond embankment is firm, there is no seepage, and the water source is not polluted. The area should preferably be 1/15-5/15 hectare, with a water depth of about 1.5 cm. 2. Stocking Fingerlings 1. Stocking methods: There are three ways to mainly culture yellow catfish in ponds. One is
-
What are the technical key points for artificial breeding of yellow catfish
Yellow catfish, also known as Angsi fish and Jiangsang fish, is a warm-water fish with strong adaptability and can be farmed in various water bodies. It is easy to raise, commands a high price, and delivers good returns. Its flesh is tender and its flavor is delicious, making it a high-quality premium aquatic product that is increasingly favored by consumers.
-
A Detailed Guide to Efficient and Practical Yellow Catfish Farming Techniques
The yellow catfish (Pelteobagrus fulvidraco), commonly known as "yellow wax ding," typically weighs 200-300 grams. Its flesh is tender with few bones, its flavor is delicious, and it has no scales. It not only has nourishing properties but also holds relatively high medicinal value, with a market price of 20 yuan/kg. I. Fry and Fingerling Rearing 1. Pond Preparation Fry and fingerling ponds should ideally be
-
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
-
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
-
Key Points of Ecological Aquaculture Technology for Yellow Catfish in Paddy Fields
I. Selection of the breeding area The breeding area is 65 hectares, with complete water, electricity and other facilities and convenient transportation. II. Paddy field engineering construction 1. For the field engineering, 10 mu is taken as one ecological aquaculture unit for yellow catfish in paddy fields. On the inner side of the paddy field ridge, a ring ditch with a top width of 1.5m, bottom width of 0.5m and depth of 0
-
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.
-
Experience and Techniques for Polyculture of River Crabs and Bass in Summer
This polyculture model of river crabs and bass fully utilizes the water body space, forming a composite ecosystem where fish and crabs coexist in a mutually beneficial relationship, reducing the disease rate, greatly improving the market quality of commercial crabs, and increasing farming income. The technical key points are summarized below:
条件筛选