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How to prevent and treat linear hepatic hemorrhage disease in farmed pufferfish
[Symptoms of linear hepatic hemorrhage disease in pufferfish] Sick pufferfish have a darkened body color, with the color from in front of the eyes to the snout noticeably paler; sometimes the body color of the pufferfish becomes pale while the area in front of the eyes becomes even paler and pallid. Sometimes the bases of the caudal fin, anal fin and dorsal fin are congested. When the abdomen of the fish is cut open, 1-2 obvious linear blood stasis marks can be seen on the liver, all extending upward from the left side of the abdomen to the right side. There is no food in the intestine, and the intestinal wall is sometimes slightly congested; sometimes severely affected fish show unusually frantic, random darting behavior, similar to the symptoms of white mouth disease in pufferfish. Linear hepatic hemorrhage disease in pufferfish has a high mortality rate, and there is currently no effective treatment method, so we adopt the policy of giving priority to prevention with treatment as a supplement. Regulate the water environment well, frequently siphon out waste, and frequently change the water, especially the bottom layer of water, which should be replaced regularly. When sick fish are found, remove and destroy them promptly. The following treatment measures were taken for the affected ponds and achieved certain results.
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What are the prevention and treatment methods for gill rot disease in pufferfish?
[Symptoms of gill rot disease in pufferfish] Diseased pufferfish move sluggishly, have darkened body color, have difficulty breathing, swim slowly in the upper water layer or near the pond edge, and have reduced appetite. When the gill cover is opened, increased mucus on the gill filaments is visible to the naked eye; in severe cases, the tips are decayed and defective, and some gill filaments appear grayish-white, often
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Methods to Improve the Survival Rate of Grass Carp Fingerlings in Grass Carp Farming
Whether grass carp are raised in monoculture or in polyculture with grass carp as the main species, the water quality must be kept fresh. Feed mainly with green feed and supplement with concentrated feed. Concentrated feed includes bran, beans, and compound feed, etc. During the initial stage of stocking (within 15 days), summer fry should be fed some fresh and tender aquatic plants, such as duckweed and watermeal.
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What preparations are needed before raising adult freshwater pomfret?
I. Pond conditions The pond area for raising adult freshwater pomfret should preferably be 10-20 mu, with a water depth of about 1.8 m. The pond is required to have an adequate water source, fresh and pollution-free water quality, convenient water intake and drainage, a flat pond bottom and little silt. II. Pond clearing and disinfection At the end of the year, drain the pond and expose it to the sun, remove excess
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Key Technical Points and Experience Sharing on Rotational Culture of Mandarin Fish and Freshwater Shrimp
Mandarin fish and freshwater shrimp are both currently popular species on the market, with large demand, high prices and high farming returns. Implementing rotational culture of mandarin fish and freshwater shrimp in ponds can maximize the use of the pond's idle period, fully utilize the water body and feed resources, increase output, and substantially raise pond
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Five key gates to get right in pond-based monoculture of mandarin fish
In recent years, artificial farming of mandarin fish in China has developed rapidly. The author has also been engaged in pond-based monoculture of mandarin fish for many consecutive years since 2003 and has achieved certain results. The production experience of recent years is summarized below to share with fellow aquaculture colleagues. 1. Strictly control the gate of pond farming conditions. Mandarin fish
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Detailed Explanation of Key Technical Points for Mandarin Fish Pond Aquaculture
As people's living standards continue to rise, wild salmon falls far short of meeting market demand, so healthy salmon aquaculture has good development prospects. Mandarin fish is also called mandarin fish, jihua fish, etc. It belongs to the order Perciformes, genus Siniperca, and is widely distributed. In all major river
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Experience sharing on self-breeding live bait for mandarin fish farming
Last year, the mandarin fish farming area in Wujiang City exceeded 10,000 mu. Zhang Qifang, a skilled mandarin fish farmer at the Sixth Branch of the East Taihu Aquaculture General Farm, farmed 20 mu of mandarin fish in 1999, with 83.5 mu of supporting ponds (of which 44 mu were used for restocking oriental river prawns), achieving a mandarin fish yield of 613 kg per mu and a per-mu profit of 3,163 yuan. Mandarin fish alone
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How to polyculture mandarin fish for a high survival rate? Practical methods shared
Mandarin fish is a typical carnivorous fish that only eats live fish and live shrimp. Raising mandarin fish alone requires supporting the culture of forage fish, and the technical requirements are high. If mandarin fish are polycultured in adult fish ponds, the water body can be fully utilized and wild trash fish in the adult fish ponds can be cleared out. In recent years, some farmers have reported
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Detailed Explanation of Key Technical Points for Raising Mandarin Fish in Ponds
(1) Selection of breeding conditions: Choose a pond with abundant water source, convenient water filling and drainage, and excellent water quality, with a pond area generally of 2~3 mu and a water depth of 1.5~2 m. (2) Preparation before stocking: ① Disinfect the pond. ② After clearing the main breeding pond, apply decomposed base
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