Pond main stingray technology
2018-06-17 18:01:50
In order to explore the artificial breeding technology of stingray, in 2000, the author conducted a trial of stingray in a pond in the Daxi River Development Company of Jianhu County. The cultivation area was 1.1 hectares, and 2,282 kilograms of stingrays were harvested, and 1,860 kilograms of white sturgeon species were harvested. , It is equivalent to 176.4kg per 667m2 of stingray, 116.3kg of white squid species, an output value of 3630 yuan per 667m2, and a profit of 1180yuan. Compared with the main domestic rearing fish, the income is increased by 300 per 667m2. 400 yuan, the relevant technical points are introduced as follows.
1 Selection of aquaculture ponds Stingray culture has low requirements for ponds. Commonly used ponds for breeding adult fishes can be cultured stingrays. The ponds require a sufficient amount of water for the breeding of yellow sturgeons, and the water quality is fresh and convenient for drainage and drainage. The area is 0. 2-0.33 hectares, maximum not more than 0.67 hectares, stingrays prefer to eat under weak light, so the water depth generally maintains 1.5-2 meters, silt does not exceed 10 cm, no water leakage, no seepage, strong fertility .
2 15 days before the stocking of clear ponds and fertilizers, 100-150 kilograms of quicklime per 667 square meters will be poured into the slurry and splashed in the whole pool to kill wild fish, germs and other predators. After disinfection, 300-500 kg/667 m2 of organic fertilizer was applied and 0.8-1.0 m of water was injected to cultivate natural food.
3 Fish stocking
3.1 Stocking during the stocking season of March-April, stocking summer fish into stock for June-July.
3.2 The amount of stocking depends on pond conditions, fish species specifications and management levels. General specifications 50-100 tail / kg of fish 1500-2000 / 667 square meters, when the 2-3 cm summer flower put 2500-3000 tail / 667 square meters. In order to make full use of water space, bait resources and water quality regulation, 800-1000 tails of summer flowers can be planted every 667 square meters of water.
3.3 Precautions
(1) Before fish stocking, use 30-50 g/L salt solution to dip for 10-15 minutes;
(2) First put the yellow bream fish species, then stocking other fish species after 10-15 days;
(3) Ban fish, quail, black fish and other fish species.
4 Feeding management
4.1 feed feed stingray omnivorous fish, feed mainly bean cakes, cakes, small fish shrimp, snail meat, etc., can also be fed artificial feed. The daily feeding amount accounts for 2%-5% of the fish's body weight, and it is fed twice a day. The time of the morning is 08:00-09:00, and the feeding amount accounts for 1/3 of the whole day and 17:00-18 in the afternoon. : Once at 00:00, the feeding amount accounts for 2/3 of the whole day. In order to facilitate the understanding of the feeding situation, several food places should be taken in the pond.
4.2 Water Quality Management Stingray is a benthic fish that is relatively resistant to hypoxia, but it is also prone to cause hypoxic floating heads during main breeding. Pay attention to regulating water quality and maintain high dissolved oxygen in water. In May-June, water is added once every 15-20 days; in July-September, water is added every 5-7 days, and water is added 10-15 centimeters each time. Found that the water quality of excessive fertilizer should immediately withdraw part of the old water, and then inject new water, so that water quality to maintain fat, live, tender, cool, and maintain the transparency of about 35 cm.
4.3 routine management of disease prevention, adhere to the prevention of the main anti-treatment, usually 15-20 days every 15 to 20 kg of lime per 667 square meters, splashed Quanchiposa, improve water quality. From July to September, disinfectants such as bleaching powders are regularly used to disinfect the whole pool. Every 10 to 15 days, they are fed with antibiotics such as terramycin and baits, each for 3 to 5 consecutive days. Adhere to the daily morning and evening patrol, observe fish feeding activities and water quality changes, find problems, immediately take appropriate remedial measures to reduce unnecessary losses, and do other work such as flood prevention, flight prevention, and steal prevention.
1 Selection of aquaculture ponds Stingray culture has low requirements for ponds. Commonly used ponds for breeding adult fishes can be cultured stingrays. The ponds require a sufficient amount of water for the breeding of yellow sturgeons, and the water quality is fresh and convenient for drainage and drainage. The area is 0. 2-0.33 hectares, maximum not more than 0.67 hectares, stingrays prefer to eat under weak light, so the water depth generally maintains 1.5-2 meters, silt does not exceed 10 cm, no water leakage, no seepage, strong fertility .
2 15 days before the stocking of clear ponds and fertilizers, 100-150 kilograms of quicklime per 667 square meters will be poured into the slurry and splashed in the whole pool to kill wild fish, germs and other predators. After disinfection, 300-500 kg/667 m2 of organic fertilizer was applied and 0.8-1.0 m of water was injected to cultivate natural food.
3 Fish stocking
3.1 Stocking during the stocking season of March-April, stocking summer fish into stock for June-July.
3.2 The amount of stocking depends on pond conditions, fish species specifications and management levels. General specifications 50-100 tail / kg of fish 1500-2000 / 667 square meters, when the 2-3 cm summer flower put 2500-3000 tail / 667 square meters. In order to make full use of water space, bait resources and water quality regulation, 800-1000 tails of summer flowers can be planted every 667 square meters of water.
3.3 Precautions
(1) Before fish stocking, use 30-50 g/L salt solution to dip for 10-15 minutes;
(2) First put the yellow bream fish species, then stocking other fish species after 10-15 days;
(3) Ban fish, quail, black fish and other fish species.
4 Feeding management
4.1 feed feed stingray omnivorous fish, feed mainly bean cakes, cakes, small fish shrimp, snail meat, etc., can also be fed artificial feed. The daily feeding amount accounts for 2%-5% of the fish's body weight, and it is fed twice a day. The time of the morning is 08:00-09:00, and the feeding amount accounts for 1/3 of the whole day and 17:00-18 in the afternoon. : Once at 00:00, the feeding amount accounts for 2/3 of the whole day. In order to facilitate the understanding of the feeding situation, several food places should be taken in the pond.
4.2 Water Quality Management Stingray is a benthic fish that is relatively resistant to hypoxia, but it is also prone to cause hypoxic floating heads during main breeding. Pay attention to regulating water quality and maintain high dissolved oxygen in water. In May-June, water is added once every 15-20 days; in July-September, water is added every 5-7 days, and water is added 10-15 centimeters each time. Found that the water quality of excessive fertilizer should immediately withdraw part of the old water, and then inject new water, so that water quality to maintain fat, live, tender, cool, and maintain the transparency of about 35 cm.
4.3 routine management of disease prevention, adhere to the prevention of the main anti-treatment, usually 15-20 days every 15 to 20 kg of lime per 667 square meters, splashed Quanchiposa, improve water quality. From July to September, disinfectants such as bleaching powders are regularly used to disinfect the whole pool. Every 10 to 15 days, they are fed with antibiotics such as terramycin and baits, each for 3 to 5 consecutive days. Adhere to the daily morning and evening patrol, observe fish feeding activities and water quality changes, find problems, immediately take appropriate remedial measures to reduce unnecessary losses, and do other work such as flood prevention, flight prevention, and steal prevention.
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