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Key Technical Points for Disease Prevention and Control in Artificial Scallop Seed Rearing
During artificial seed rearing, scallop larvae are highly susceptible to bacterial and fungal infections, which cause mass mortality. Among the common bacterial diseases are Vibrio species; one type, Vibrio anguillarum, specializes in decomposing organic matter and can break down the larval velum within a very short time. This symptom occurs especially within
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How to Improve the Survival Rate of Scallop Seedlings in Nursery Rearing
Suitable ponds for nursery rearing The pond should preferably have an east-west oriented rectangular structure, with a sandy or hard bottom, a water storage depth of more than 1.5 m, a salinity below 35, and an unpolluted external seawater source; before filling the pond with water, the bottom sludge layer must be thoroughly removed and the pond fully sun-dried; it is prohibited to
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A detailed guide to practical eel farming techniques, easily mastering the key points of farming
Eel, aliases: white eel, white eel, river eel, Japanese eel, green eel, wind eel, Japanese eel. Eel refers to the general term for species classified under the order Anguilliformes. Also called eel, it is a fish that looks like a long snake-shaped fish and has the basic characteristics of fish. In addition, eel and salmon
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Seedling rearing and stocking techniques for eel farming
Eel seedling rearing is the production process of growing glass eels into eel fingerlings of more than 10 grams. This stage requires rearing through three different types of ponds: primary ponds, secondary ponds and tertiary ponds. Eel fingerlings are the foundation of adult eel farming; the quantity and quality of eel fingerlings directly affect
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Sharing Practical Experience in Sea Bass Farming in Shrimp Ponds
In recent years, sea bass has become an important farmed species in northern China, especially when farmed in shrimp ponds, as it takes little time and yields quick results; this technique is worth promoting on a large scale. The farming experience is described below: Prepare the farming pond. The pond should preferably be 1.3 to 2 hectares in size, with a water depth of about 2 m. The pond bottom may be mud or sand. It is best to dig a deep drainage ditch in the middle of the pond, and make sure there is no pollution around the farming pond. During the winter slack season, use a bulldozer to scrape off the blackened layer of silt on the surface of the shrimp pond, let the pond bottom be fully exposed to sunlight, and then apply 50 kg to 60 kg of quicklime per 1/15 hectare to clear the pond.
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Sharing Experience in Pond Farming of Largemouth Bass
California bass, also known as largemouth bass, has the characteristics of relatively fast growth, strong adaptability, few diseases, easy to catch, tender meat, delicious taste, and no intramuscular bones. Its farming techniques are as follows. 1. Pond conditions. California bass is good at inhabiting a quiet
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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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How are bass fry cultivated? Sharing bass farming techniques
Bass fry can be cultivated in ponds, or in cement tanks, fiberglass troughs, canvas troughs, or in cages. There are many people in China who farm bass, because bass has few bones and is therefore deeply loved by people. Bass fry cultivation for bass farming
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Experience sharing on mixed culture of river crab and bass in ponds
1 Pond clearing and preparation After the pond is exposed to the sun, use 80kg of quicklime per 1/15 hectare to clear the pond and disinfect it, killing harmful organisms and pathogenic bacteria. 7d before stocking crab seedlings, fill with water to about 0.5m, apply 60kg of chicken manure per 1/15 hectare, cultivate plankton feed, and make the water color yellow-green, with transparency
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Practical Experience Sharing on Temporary Rearing of Yellow Catfish Fry
The temporary rearing and cultivation stage of yellow catfish fry refers to the brief process in which newly hatched larvae that cannot swim freely are cultivated with careful nursing methods into individuals that can swim and feed on their own. The temporary rearing and cultivation of fry is also called larval-stage temporary rearing. (1) Facility conditions The fry's
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