During the growth of the cultured crabs, hairs sometimes grow on the head, chest, armor, and abdomen limbs, making the surface of the crab look unclean, and the action is slow, the appetite is poor, malnutrition, difficulty in breathing, and difficulty in breathing. Not to be caught, not even shelled and died. The reason for this is mainly due to the illness of crabs. What diseases do crabs suffer from hair growth?
Saprolegnia sclerotiorum is caused by the damage of aquatic fungi. The hyphae hyphae appear as grey cotton wool and can cause hairy hair on the crab. The cause of the disease is related to excessive water quality in the crab pool, lack of fresh water, less water injection, and mechanical damage to the crab body.
Control method Crab pools average depth of 1 meter, per acre with 133 grams to 266 grams of malachite green water Quanchiposa. In addition, 500 grams of fibrid net insecticidal net and other insecticides can also be used to splash the whole pool. Filamentous algae disease is caused by the attachment of filamentous algae to the body surface of the crabs. The length of the surface of the crab body has long green filamentous hairs, and the villous curvature is irregular. The cause of the disease is related to excessive water quality, pH value less than 7.5, and long mosses in the pool.
Prevention and control methods The average depth of the crab pond is 1 meter. Use 15 kg to 20 kg of calcined water per acre to splash the whole pond to increase the pH. Use 500 g of chelated copper to splash water to Quanchiposa, or use 200 grams of moss to kill soil. The whole pool is spread and the water is partially changed after 8 hours.
For hairy crabs, it must be prevented and treated early. The sooner you prevent it, the better the effect will be, and you can avoid losses.
Melting point -27°C
Boiling point 95 °C52 hPa(lit.)
density 0.989 g/mL at 20 °C(lit.)
refractive index n20/D 1.418
Fp 73°C
Water Solubility Slightly miscible with water.
Saprolegnia sclerotiorum is caused by the damage of aquatic fungi. The hyphae hyphae appear as grey cotton wool and can cause hairy hair on the crab. The cause of the disease is related to excessive water quality in the crab pool, lack of fresh water, less water injection, and mechanical damage to the crab body.
Control method Crab pools average depth of 1 meter, per acre with 133 grams to 266 grams of malachite green water Quanchiposa. In addition, 500 grams of fibrid net insecticidal net and other insecticides can also be used to splash the whole pool. Filamentous algae disease is caused by the attachment of filamentous algae to the body surface of the crabs. The length of the surface of the crab body has long green filamentous hairs, and the villous curvature is irregular. The cause of the disease is related to excessive water quality, pH value less than 7.5, and long mosses in the pool.
Prevention and control methods The average depth of the crab pond is 1 meter. Use 15 kg to 20 kg of calcined water per acre to splash the whole pond to increase the pH. Use 500 g of chelated copper to splash water to Quanchiposa, or use 200 grams of moss to kill soil. The whole pool is spread and the water is partially changed after 8 hours.
For hairy crabs, it must be prevented and treated early. The sooner you prevent it, the better the effect will be, and you can avoid losses.
Isopropyl Acetoacetate CAS No.542-08-5
Isopropyl Acetoacetate Basic Information
Product Name: Isopropyl acetoacetate
CAS: 542-08-5
MF: C7H12O3
MW: 144.17
EINECS: 208-798-4
Mol File: 542-08-5.mol
Isopropyl Acetoacetate Structure
Melting point -27°C
Boiling point 95 °C52 hPa(lit.)
density 0.989 g/mL at 20 °C(lit.)
refractive index n20/D 1.418
Fp 73°C
Water Solubility Slightly miscible with water.
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