The problem of soft shelled turtle
In the treatment of ciliosis of soft-shelled turtle, drugs to kill ciliates can be used every few days after sprinkling quicklime.
The control methods of fixed ciliosis of soft-shelled turtle are as follows: (1) sprinkle quicklime (20g / m3) and bleach (1.5g / m3) regularly in the whole pond. (2) soak the diseased soft-shelled turtle with copper sulfate (8 g / m3) or potassium permanganate (10 g / m3) for 20 minutes. (3) the mixture of copper sulfate and ferrous sulfate (5 ∶ 2) was sprinkled in the whole pool, 0.8g per cubic meter in high temperature period and 1g per cubic meter in low temperature period, once a day, twice in succession. (4) Surfactants such as quaternary ammonium salts were sprinkled in the whole pool.
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Bacterial diseases of sweet fish and their control
1. Vibrio disease 1. Symptoms vary according to the type of Vibrio infection. Vibrio disease can be roughly divided into three types: yellow liver type, intestinal tip type and ulcer type. The diseased fish body shows swimming weakness, body color blackening, eyeball protrusion, epidermal hemorrhage, deep muscle layer when severe, blood stasis on the inner surface of gill cover, fin base and snout end followed by ulcer, anal redness, light gill color, swollen liver of diseased fish, some are all faded and yellow, some are partially faded and congested, and bubbles filled with blood appear in the liver of diseased fish. gall bladder swelling, filled with orange or brownish green bile; kidney
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How to get fat for fish, shrimp and crab in autumn
First, change water reasonably and cultivate fertile water. Since May, "bait" and "liquid" have been used to control diseases and insect pests every other month or 20 days. In the transitional period of summer and autumn, more attention should be paid to the regulation of water quality; to prevent the pool water from becoming "turned" or "old", and to maintain the appropriate transparency of fertilizer and water. The transparency of fish ponds is about 25 cm, that of shrimp ponds is 30 to 36 cm, and that of crab ponds is 35 to 40 centimeters. If the transparency of the pond water is less than the normal needs of fish, shrimp and crabs, use quicklime 5 to 7.5 kg per mu in time.
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