Color discrimination treatment of shrimp disease

After a shrimp becomes ill, a certain part of the body or an organ will exhibit a distinctive color. According to this color change, shrimp disease can be diagnosed.

The main symptoms of the "red" syndrome are:

Department of red body disease caused by the Taura virus, South American white shrimp susceptible to the disease. Symptoms: The acute body was pale red, the tail fan and the swimming foot were dark red; the chronic ones only had dark spots on the surface of the shrimp shell. Control measures: 1 Bromochlorohydantoin, 0.5 mg/l water body, Quanchiposa. 2 50 grams of Banlangen and 200 grams of three yellow powders were fed into 100 grams of bait and fed for 1 week.

Red blisters and red limbs are caused by a certain type of Vibrio. Shrimp is susceptible to infection. Symptoms: The early axilla, chest and abdomen were red, and most of the body was dark red at the later stage; the sides of the shrimp were white and the abdomen was turbid white. Treatment: 1 oxytetracycline, 0.5 g/kg bait, fed for 5 days. 2 bleach, 3 mg/L water body, Quanchiposa disinfection. Prevention: (1) The shrimp pond is often filled with fresh water. (2) Keep enough dissolved oxygen in the pool water.

Red head black shank disease This disease occurs mainly in shrimp, and the pathogens are parasites and bacteria. Symptoms: The early palate is red, and the latter is black and erosion. Microscopic examination lesion collection: parasite-infected ciliate protozoa found, bacterial pathogens that can be found. Treatment: 1 parasite-infected, 0.5 mg/l water body of calcium sulfate and 0.3 mg/l water body of zinc sulfate, Quanchiposa. 2 bacterial infection, 0.5 g / kg bait, terramycin fed 5 days; shrimp Kang 1, prepared according to instructions bait, even fed 5 days. Prevention: (1) Prior to stocking of shrimps, use 5 to 20 mg/L of formaldehyde in water to bathe the shrimp for 10 to 20 minutes. (2) The shrimp pond is often filled with fresh water. (3) When the dry pond is exposed to the bottom of the pool for several days.

The "yellow" disease is mainly caused by jaundice, also known as yellow head disease, which mainly occurs in shrimp, caused by the jaundice virus. Symptoms: The disease department is pale yellow and pale. Autopsy: The liver and pancreas appear pale yellow. Treatment: Bromochlorohydantoin, 0.3 mg/L water body, Quanchiposa. Prevention: 0.5 mg/litre of the enemy's body of water, splashing at Quanchipi.

The main symptoms of "black" disease are black shank disease, also known as black plague, which is caused by chronic lack of vitamin C and shrimp pond contamination, mainly occurring in prawn. Symptoms: Turbid opacities, light reddish color, dark red afterwards, and finally black. The shrimp shell is soft, the cicada shell is prolonged, the breathing is difficult, and the mortality is high. Treatment: 1 Replace the clean water in the shrimp pond. 2 Vitamin C 100 mg, stir in 100 g bait and feed. In order to make the efficacy long-lasting, the stronger stability of the coated vitamin C should be used. 3 Furazolidone, 2 mg/l body of water, bath, suitable for bacterial originator. Prevention: (1) Add new water regularly to the pond. (2) Regular disinfection. (3) Periodically remove bottom sludge.

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