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What are the control methods for Ichthyobodo? A must-read for fish farmers
① Copper sulfate: before stocking fry, soak them in 8 g of copper sulfate per cubic meter of water for 15-30 minutes. ② Copper-iron mixture: during the disease season, hang a bag of copper sulfate and ferrous sulfate (5:2) once every half month. ③ Spray the whole pond with a mixture of copper sulfate and ferrous sulfate (5:2), using 0.7 g per cubic meter of water. ④ For each mu at 1 m water depth, spray the whole pond with 15-20 g of avermectin. ⑤ Soak diseased fish in 2% salt water or 0.05% formalin for more than 15 minutes. ⑥ During the disease season, use 15 kg of chinaberry leaves per 500 cubic meters of water
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What are the prevention and control methods for fish autumn plague?
In autumn, fish are highly prone to acute diseases with extremely high mortality rates, such as emaciation disease, small claw worm, gill rot disease, and water mold, commonly known as "autumn plague." To prevent and control outbreaks of "autumn plague" in fish, seven key points should be well managed. 1. Improve the ecological environment. Pay attention to ecological prevention and control, appropriately feed full-price concentrated feed, tender grass, etc., to meet the nutritional needs of fish growth as much as possible, so as to improve their immunity. 2. Actively add fresh water. Adding fresh water can bring in oxygen and various nutrient elements, and can also dilute organic matter in the pond water and
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What varieties of snakehead fish are there? An introduction to common snakehead varieties
Scientific name: Channa Striatus. Malay names: Haruan, Aruan, Ruan, Taman Paya. English name: Striped Snakehead. Common names: striped snakehead, snakehead murrel. Other names: black fish, cai fish, wu bang, spotted snakehead, snakehead fish, xiao fish, sang yue, mo tou fish, etc. The snakehead is a valuable freshwater fish of the family Channidae, notable for its large size, fast growth, high yield and high economic value.
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How can cold-water fish farming effectively prevent and control pathogens?
1. Establish a strict quarantine system. When introducing and exporting fish eggs and fry, all farming areas must strictly carry out quarantine to prevent and control the occurrence of diseases. Farms should set up quarantine ponds to isolate introduced fish species; only after the introduced fish are confirmed free of important diseases may they be temporarily reared. Quarantine ponds are generally located at the end of the drainage ditch. The length of quarantine time should be determined by the transport season, water temperature, and the characteristics of the disease. When the average temperature is not lower than 12°C, 20 days are required; when the water temperature is higher, it can be shortened, which is determined on the basis that the lower the temperature, the longer the incubation period. If
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What are the key points of winter fishery production?
As winter arrives, the focus of fishery production begins to shift gradually. Recently, the author visited Yang Zhuangzhi, head of the Chengdu Aquatic Technology Extension Station, and asked him to introduce to everyone the technical measures that farmers generally care about, such as fish pond management and overwintering of pond fish. In winter fishery production, what work should be done as a priority so as to provide favorable conditions for high adult fish yields the following year? Yang Zhuangzhi said that, to sum up, winter fish farming should mainly focus on seven areas of work. Pond renovation Using the winter
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How to make silver-thread spicy fish head delicious? Home-style recipe shared
Ingredients: 1 silver carp fish head (about 900 g) Auxiliary ingredients: 200 g vermicelli, 75 g fresh red and green bird's eye chilies, appropriate amounts of ginger and pickled peppers. Seasoning: appropriate amounts of pepper, salt, monosodium glutamate, chicken bouillon, cooking wine, white sugar, pickled pepper oil, scallion sections, chopped scallions, and scallion oil. Method: 1. Soak the vermicelli thoroughly in warm water first. 2. Chop the bird's eye chilies and put them into the pickled peppers, pepper, salt, monosodium glutamate, chicken bouillon, cooking wine, white sugar, and pickled pepper oil, mix well, put the fish head in and marinate for 5 minutes. 3. Cut the fish head in half, arrange
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6 common situations that affect fish feeding
In intensive fishery production, the management of feed feeding is one of the main links in the entire production management. During the feed feeding process, the phenomenon of reduced feed intake by fish often occurs. Based on different situations in production, the author describes the reasons for reduced feed intake by farmed fish as follows: The first situation: fish are currently diseased, causing reduced feed intake by fish. For example, when diseases such as crucian carp internal sporidiosis, grass carp three diseases, channel catfish hemorrhage disease, and enteritis occur, the feed intake of fish is significantly reduced. When grass carp fingerlings and crucian carp
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How to make delicious spicy boiled fish? Detailed home-style recipe
Main ingredients: bean sprouts, fish fillets. Seasonings: Hongfantian fermented black bean chopped chili, dried chilies, scallions, ginger, garlic, Sichuan peppercorns, cooking wine, salt, sugar, cornstarch, light soy sauce. Method: 1. Add cooking wine, salt, cornstarch and light soy sauce to the fish fillets and marinate for a moment. 2. Stir-fry the bean sprouts in oil until cooked, add salt, and place in a bowl. 3. Add oil (there must be plenty of oil), add Hongfantian fermented black bean chopped chili, stir-fry until fragrant, then add dried chilies, scallions, ginger, garlic and a few Sichuan peppercorns (not too many, a few is enough), stir-fry, add water, cooking wine and sugar. Bring to a boil
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Detailed Explanation of Fish Ball Processing and Production Techniques
Fish balls are delicious and nutritious, making them a fine dish on the dining table, especially suitable for the elderly and children. To process high-quality fish balls, the following technical points must be mastered: Material selection and handling. For processing fish balls, fresh fish weighing 1500 yuan-4000 grams should be selected. If the fish is too small, the finished product will not be smooth and tender; if the fish is too large, the meat will be tough and not pleasant to the palate. Remove the scales, gills, and internal organs from the selected fish, cut off the fish head, keep the fish meat, and pick out the small bones.
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What are the comprehensive utilization methods for fish processing by-products?
The fish heads, tails, minced meat, scales, skin, viscera, bones, and gall bladders left over from fish processing contain large amounts of protein, amino acids, trace elements, and vitamins. Using these protein resources, various deeply processed products can be made, including soluble edible fish protein powder, liquid fish protein feed, fish scale glue, fish skin glue, bone paste, fish protein calcium candy, bile pigment calcium salt, and bile salts. Comprehensive utilization of fish processing by-products can lower the cost of main products and increase the added value of aquatic products; it can also protect the environment, reduce wastewater and waste emissions, and achieve higher economic, ecological, and social benefits.
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