Squid pool culture stone gang technology

In recent years, factory-cultivated marine fishes have rapidly emerged throughout the country. Shrimp pool culture of marine fishes has been recognized for its low investment in equipment and materials and high output efficiency. High-grade marine fish - Dendrobium is favored by many farmers because of its delicate meat, good taste, rich nutrition, fast growth, less disease, and best-selling market. The authors adopted a trial of stone bream culture in shrimp ponds and achieved good economic benefits. The technical points are as follows:

First, shrimp pond conditions and treatment methods

1. The pool used for breeding stone rakes should be close to the sea area. The maximum water temperature in summer shrimp ponds should not exceed 29°C, and the size should be 15 mu to 30 mu. Water depth of more than 2.0 meters, smooth water intake and drainage.

2. The bottom of the pool is flat, mainly in fine sand with a diameter of 0.5 mm to 1.5 mm.

3. At the end of December, aquaculture ponds will be used for cultivation, exposure to sunlight, and 60 kg to 80 kg of lime for killing harmful bacteria, parasites, and miscellaneous fish.

Second, put fry

1. Start with fertilizer ponds, and start receiving water in mid-March. The water-bearing time is best to be selected at night. It is mainly to cultivate basic creatures at the bottom of the pool. In mid-April, the water level in the pool reached 1.2 meters. From the beginning of the influent, apply urea fertilizer ponds for 5 to 7 days.

2. The fry is caught in the shallow water area near the shore and is stored in indoor shrimp ponds until the end of April. When the specifications reach 150 grams, the fry ponds will be placed again. Before bathing, dip for 2 minutes to 5 minutes with 25010-6 formalin solution.

3. The stocking density is 800 fishes/mu to 1000 tails/mu. Carefully cultured from September to October, the tail fish can weigh more than 500 grams, and the survival rate of the rearing fish exceeds 90%.

Third, aquaculture management

1. The bait is fed to feed fresh frozen fish, shrimp, and scallops, and appropriate amount of eye shrimp is fed. Feed twice a day, 40% in the morning and 60% in the evening. The daily feeding amount is 8% to 9% of the fish's body weight. It is necessary to feed regularly and regularly, and do not invest in foods that are corrupt, deteriorated or contaminated.

2. Domestication feeds at regular intervals from 5:00 to 6:00 in the morning. First, a small amount of food is used to attract food until most of the pool fish are concentrated and then cast more until they are fed. In this way, after 1 month of domestication, the stone cricket will feed regularly.

3. Water quality management Before the beginning of June, basically no change of water, only add water, add 5 cm to 10 cm daily, until it is added to the 2.0 meter high water level. In mid-June, change the water, change the water every day 10 cm to 15 cm, pool water color should not fluctuate too much. During the high temperature season from mid-July to mid-August, the water temperature should be measured at regular intervals every day. When the water temperature reaches or exceeds 28°C, the water exchange volume should be increased to ensure proper temperature conditions for the stone cocoons and promote their rapid growth. specification.

4. Drug prevention and treatment Everyday 15 days to 20 days should be fed with feed containing antibacterial drugs for 3 days to 5 days. At the same time, piling and hanging medicine bags in the feeding place for external prevention.

China Fishery Net Editor

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