Hibiscus squid breeding techniques
First, the choice of fish pond
1. The fry pond should be a rectangular pond with a sunny direction. It is convenient to enter and drain, with an area of ​​1-3 mu. The water depth in the early stage of cultivation is 0.5-0.7 meters, and the later period is 1 meter-1.2 meters. The bottom is flat.
2, strict disinfection of fish ponds. Due to the low temperature of the water in the breeding stage, the growth of the hibiscus larvae is relatively slow. If the pond is not completely clear, the disease organisms and the wild fishes will have a chance to directly affect the survival rate of the hibiscus, so the seedlings will be released before 7- 10 days must be quicklime or bleaching powder according to the standard of the four major fish fry clear pond disinfection, put the net before the check.
3. Insist on the submerged pond. Since the larvae of the larvae are fed with planktonic organisms in the early period, they are filled with fresh water 5-7 days before the lower fry pond and apply 150 kg to 200 kg of organic fertilizer per acre as a base fertilizer. Pool water appears greenish or brownish yellow before frying. Fattening water quality is very beneficial to the growth of fry and increase the survival rate. However, it is necessary to prevent the “old water†pond from affecting the survival rate.
Second, summer flower cultivation:
1. The stocking density of hibiscus carp seedlings in the lower pool should be 1 to 200,000 tails per acre. If it is necessary to increase the stocking density in special circumstances, it is necessary to exfoliate as soon as possible so as not to affect the growth and survival rate.
2, fish ponds should pay special attention when the pond water and fry bag temperature difference does not exceed 2 degrees, if the temperature difference is too large, the water temperature should be gradually adjusted until the water temperature is consistent after the next pond, when the seedlings should be selected sunny and in the upper hand of the pond Place seedlings. Hibiscus squid 1-2 days after the pond, soybeans with about 3 kilograms per acre, ground into soybean milk fed twice a day, depending on the specific amount of water temperature and fish weight gain, food intensity, etc., as appropriate, increase or decrease. After 8-10 days, Xiatang began to change its diet, mainly from plankton to artificial feeding. At this time, in addition to paying attention to daily fertilizer and water management, it is necessary to gradually add appropriate amount of tertiary powder or soaked cakes. To meet the needs of their food conversion, such as the discovery of fry mad swim not only immediately along the side cast as feed concentrates, to prevent the fry's "race" disease affect the survival rate.
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