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 saltwater fish – Dendrobium is favored by many farmers because of its delicate flesh, good taste, rich nutrition, fast growth, low disease, and best-selling market. Through the experiment of breeding stone cockles in shrimp ponds, good economic benefits have been achieved. The technical points are as follows:
First, shrimp pond conditions and treatment methods
1. The tanks 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 mus. Water depth of more than 2.0 meters, smooth water intake and drainage.
2. The bottom of the pool is flat, dominated by fine sand with a diameter of 0.5 mm to 1.5 mm.
3. At the end of December, the aquaculture ponds were treated, and ploughing, exposing to the sun, and producing 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, a urea fertilizer pond was applied 5 days 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 3 minutes to 5 minutes with 25010-6 formalin solution.
3. The stocking density is 800 tails/mu - 1000 tails/mu. Carefully bred to September-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%-9% of the fish's body weight. It is necessary to feed regularly, regularly, and not to feed on foods that are corrupt, deteriorated, or contaminated.
2. Domestication will be fed regularly at 5:00-6:00 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 -15 cm, pool water color should not fluctuate too much. From mid-July to mid-June, during the high temperature season, the water temperature should be measured 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 cockroaches and promote their rapid growth. specification.
4. Drug prevention and treatment Everyday 5 days and 20 days should be fed with feed containing 3 antibiotics for 5 days. At the same time, piling and hanging medicine bags in the feeding place for external prevention.
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Jilin Province Agricultural Sister-in-law Food Co., Ltd. was established in 2012 and has been in the export business since 2012. We mainly export to 16 countries all over the world.
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Jilin Province Argricultural Sister-in-law Food Co., Ltd. , https://www.nongsaocorns.com