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How to prevent and treat fish lice disease in snakehead? A full analysis of practical methods
(1) Pathogen: fish lice. (2) Symptoms: After being parasitized by fish lice, the diseased fish become extremely restless, swimming wildly and jumping about, with increased mucus on the body surface, and are prone to concurrent saprolegniasis and other diseases. The harm to fingerlings is extremely great, and in severe cases it can cause mass death of the diseased fish. The peak incidence period is from May to September each year. It is a common disease of snakehead. (3) Prevention and treatment: Splash 0.4×0.000001 Yuchongqing over the whole pond.
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Sour Cabbage Fish
[Dish Name]Sour Cabbage Fish[Cuisine]Northeastern Chinese Cuisine[Characteristics]Fresh, tender and refreshing; stimulates the appetite and strengthens the spleen; sobers one up and refreshes the spirit; the soup is delicious and palatable.[Ingredients]Main ingredients: 1 carp (about 1000 g), 250 g aged pickled green sour cabbage. Auxiliary ingredients: 1 egg white, 40 g blended oil, 1250 g soup, 4 g refined salt, 3 g monosodium glutamate, 4 g pepper powder, 15 g cooking wine, 25 g chopped pickled chili, 10 Sichuan peppercorns, 3 g sliced ginger, 7 g garlic cloves.[Pre
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What are the precautions for autumn harvesting of pond fish?
First, pay attention to the weather conditions. In autumn, seining and harvesting must be done on a sunny day with cool weather, around dawn before the pond fish come to the surface for air. At this time, the impact on the pond fish is minimal, and the freshly caught fish can be supplied to the morning market in time. Hazy and muggy weather is not suitable for seining fish, as it may cause a large number of fish deaths. In addition, when the fish in the pond are gasping at the surface or there is an outbreak of fish disease, seining and harvesting should also be avoided. Second, restrict feeding before harvesting. After fish eat their fill, their oxygen consumption increases, and when seining and harvesting, they are startled, jump and dart about, which easily causes injury and death. Therefore, before seining and harvesting
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Detailed Explanation of the Experimental Methods for Farming Milkfish in Cement Ponds
1 Materials and Methods 1.1 Source of Experimental Fish On May 12, 2001, milkfish fingerlings were shipped from Indonesia, transited through Malaysia, and arrived at the experimental site at 5 PM on the 14th. 3000 experimental fry were transported in 6 bags and 3 boxes using oxygenated live-water bags. Upon arrival, only 1380 survived, a survival rate of just 46%. The fry placed in the nursery pond died successively on the second and third days, leaving only just over 500 alive. The cause was determined to be prolonged transport time leading to death from carbon dioxide poisoning. 1.
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A detailed explanation of the guidelines for the use of pollution-free fishery drugs: scientific medication is safer
Although fishery drugs can treat diseases of the farmed fish, shrimp and crabs, because aquatic products will ultimately be placed on people's dining tables, attention must be paid to the safety of the drugs used to prevent and treat their diseases. To prevent harmful substances contained in aquatic products from harming human health, the Food Hygiene Law stipulates that aquatic products such as fish, shrimp and crabs must not contain antibiotics or synthetic antibacterial agents or other substances harmful to human health. To prevent drug residues, it is necessary to understand the correct methods of drug use and the withdrawal period. The relevant national authorities have issued the "Pollution-Free Food
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Prevention and Treatment Methods for Fish Louse Disease in Ayu Farming
Pathogen The pathogen is the fish louse. Symptoms The fish louse parasitizes the body surface and gills of ayu, sucking the blood of the ayu and causing the fish to gradually become emaciated. When feeding, the fish louse pierces the fish's skin with its mouth spines and mandibles, creating many wounds that then become infected with microorganisms, causing death. Prevention and treatment ① Before stocking, the fish pond is cleared with quicklime while still holding water, killing adult lice, larvae and egg masses in the water. ② Bathe the fish in a 30 ppm formalin dilution for 12 hours, for 3 consecutive days. ③ Use trichlorfon 0.
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The recipe and detailed preparation steps for Three Fresh Steamed Dace Fish Balls
The so-called "three fresh" ingredients are loofah, king oyster mushroom and cloud ear fungus. Once combined with the flavor of dace, they better bring out its fresh sweetness, making this dish clean-tasting yet not bland, fresh yet not vulgar. Ingredients: one dace, loofah, king oyster mushroom, soaked cloud ear fungus, chopped scallions, diced cured meat, dried shrimp, cornstarch, pepper powder, chicken bouillon powder, etc. Method: 1. First fillet the dace, keeping the whole head, bones and tail aside for later use. 2. Cut the dace flesh straight into thin slices, add an appropriate amount of cornstarch, salt and pepper powder to the fish flesh, together with chopped scallions and cured
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What should be noted when keeping clownfish in a mixed tank?
Clownfish belong to the damselfish family (Pomacentridae), and they all have rather aggressive temperaments, especially showing hostility toward newly introduced fish of the same kind. Mixed keeping is not a problem, but the following conditions are required: 1. Several fish should be introduced into the tank at the same time, with the time interval kept as short as possible, and the smaller individuals introduced before the larger ones. 2. There should be a large number of sea anemones (carpets) in the tank; for three kinds of fish, at least three sea anemones (carpets) are needed. 3. The tank must be large enough, and the sea anemones (carpets) should be distributed evenly. The above three points only help avoid fights among them as much as possible, but they cannot
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Winter pond fish farming has many benefits, and winter is the right time to farm
Guangdong Province is located in the tropical and subtropical zones, with abundant water and heat resources. Taking the Guangzhou area as an example, the annual average temperature is above 23°C, and even in the coldest month, January, the average temperature still reaches around 13°C. This natural advantage is very favorable for carrying out "winter farming" of pond fish. Practice in various places has proven that "winter farming" of pond fish has many benefits: First, when the weather is cold and the water temperature is lower, the organic matter and fertilizer in the pond decompose slowly, the pond water is fresh, and oxygen is sufficient, which is conducive to rapid growth and easy fattening of pond fish; Second, because the weather is colder, bacteria and parasites in the pond are not easy to reproduce and grow, so pond fish
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Fish Domestication Methods: How to Get Fish to Quickly Come to the Feeding Station
In recent years, with the continuous improvement of fish farming technology, the method of raising fish with complete-formula pelleted feed has been gradually promoted and applied. However, because many fish farmers are unskilled at feeding domestication, the domesticated fish are slow to come to the feed station, which not only affects feeding and delays growth, but also increases labor and cost and affects farming profitability. Below are two simple and easy domestication methods we have summarized in production practice. 1. Feed hanging-bag domestication method: Use large-mesh window screening (as long as it does not let feed leak through) to make a
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