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Prevention and Treatment of Muscle Opacity Disease and Cramp Disease in Whiteleg Shrimp Farming
Muscle opacity disease: Causes: Sudden temperature changes are the main cause, whether the temperature is too high or too low; Vibrio infection or sporozoan parasites in the muscle. Symptoms: The muscle of the last one or two abdominal segments turns white and loses its transparency; in individual diseased shrimp the whole body turns white, and microscopic examination shows the whitened muscle is already necrotic, with disordered muscle fibers and indistinct striations.
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Prevention and Treatment Methods for Liver Disease in Grass Carp Farming
1. Main Functions of the Liver The liver of the grass carp is located in the abdominal cavity and is the largest digestive gland. It is roughly divided into left and right lobes; the right lobe is larger, extends to the first bend of the intestine, and occupies the entire space of the first bend. The liver is mainly composed of hepatic lobules, and within the liver tissue
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Prevention and Treatment of Complications Such as Enteritis and Gill Rot in Grass Carp Fingerling Culture
Symptoms The diseased fish swim slowly and have reduced appetite; the scales on the fish body are basically intact; there are one or several varying furuncles on both sides of the dorsal fin, which feel relatively soft to the touch and have a swollen sensation, and when the furuncles are cut open, purulent and bloody fluid flows out; the anus is slightly red and swollen; the gill filaments are red and swollen, with
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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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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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Prevention and Control Methods and Key Technical Points for Fulminant Disease in Cultured Puffer Fish
[Symptoms of fulminant disease in puffer fish]The main symptoms of diseased puffer fish are congestion at the base of each fin and in the fin rays; in severe cases, the fin rays, upper and lower jaws, eyes, and the area from the base of the dorsal fin to the caudal fin all show severe congestion. Sometimes there is bleeding in the orbital cavity and exophthalmos (bulging eyes). In some cases the gills show varying degrees of decay with abundant mucus.
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A Detailed Guide to the Prevention and Treatment of Vibriosis in Farmed Pufferfish
[Symptoms of pufferfish vibriosis] The pathogen is Vibrio, with a growth temperature of 101Z-35C and an optimum temperature of around 25C; the growth salinity range is 0.5%-6%, and can even reach 7%, with an optimum salinity of around 1%; the growth pH range is 68, with an optimum of around 8. Diseased fish show gastrointestinal bleeding
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Prevention and Treatment Methods for Iridoviral Fish Disease in Pufferfish
Iridoviral fish disease affects many fish during the high water temperature period in the farming of pufferfish juveniles and adults. Through observation of the iridovirus in diseased fish using Giemsa staining, iridoviral fish disease occurs concurrently with botulism and vibriosis, and is a viral disease caused by infection with bacterial and parasitic fish diseases.
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How to Do a Good Job in Disease Resistance and Epidemic Prevention and Control in Nutria Farming
Measures to be taken when an epidemic occurs on a nutria farm Once an epidemic occurs on a nutria farm, the principle of "early, fast, strict, small" should be followed, and decisive measures should be taken to quickly stamp it out. (1) Confirm the diagnosis as soon as possible and report the epidemic When an infectious disease is suspected, immediately
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How to prevent diseases in nutria farming
For infectious diseases of nutria, in addition to specific prevention, epidemic prevention and quarantine systems should be strictly observed, and the veterinary hygiene order of the farm and the feed mixing room should be maintained at all times. The specific measures are as follows: (1) Entry of outside personnel into the farm should be strictly controlled or prohibited; when necessary
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