Healthy shrimp culture technology
2018-06-06 10:03:13
First, shrimp pond requirements
1. It is better to build on the high tide line 0.5 meters to 1 meter;
2. The salinity of seawater is generally not higher than 35 ‰, the lowest is not less than 8 ‰, and the suitable range is 10 ‰ to 30 ‰. pH 7.4 to 8.6;
3. The aquaculture pond covers an area of ​​10 mu to 20 mu. The water in the pond will be drained, the depth of the pond is 3 meters, and the water depth is more than 2 meters.
Second, pre-release preparations
1. Clean up the entire pond, remove all sludge from the bottom of the pond, and plow till it is exposed.
2. Thoroughly clear the pond and kill the harmful organisms in the pond. Use “Bromochlor Hydantoin†5ppm to disinfect the shrimp pond, reservoir, and all inlet canals to achieve bactericidal action.
3. Cultivate basic bait (ie, natural bait). After clearing the pond, fill in 30 cm of water and apply organic fertilizer and inorganic fertilizer. Organic fertilizer can be used after the fermentation of cow dung, 50 kg per acre. Inorganic fertilizer can be used diammonium, three materials, phosphate fertilizer, apply 2 kg to 3 kg per acre. Single-cell algae, beneficial bacteria, and microbenthos were cultured.
Third, the choice of shrimp
1. Choose a healthy shrimp that has not been infected with virus after it has been rigorously cultivated in accordance with the operating instructions for shrimp breeding. The groups of shrimps are tidy, full and transparent muscles, normal pigments in the appendages, full of food in the gastrointestinal tract, lively swimming, strong water repellency, no external parasites and attachments.
2. Individuals of shrimp are more than 1 cm (15 days to 20 days).
Fourth, the seedlings at this time require a depth of 60 cm to 80 cm, the water quality is tender, the water temperature is above 14°C, and the pH is between 7.8 and 8.6. In case of strong winds and heavy rain, it is not appropriate to plant seedlings.
V. Breeding management
1. Daily management Every morning and evening, each patrols the pool. Observe the situation of the shrimp ponds carefully, pay attention to the water color, shrimp activity and whether or not there are dead shrimps, and make a record.
2. Water Environment Management Maintain the water level. In the early period of cultivation, it is generally not necessary to change the water. Simply add 5 cm to 8 cm of water to the pool every day to keep the water level at 1.5 meters to 2 meters. During the middle and late breeding period, the amount of water to be changed every day should be controlled to be about 10 cm deep. Once a month, zeolite powder is delivered once, 20 kg per mu.
Adjust water quality Use zeolite, calcium peroxide water quality protection agent and photosynthetic bacteria to regulate water quality and maintain the natural food in the water body. Keep the water color green, green-yellow and brown-green with a transparency of about 30 cm.
When using water disinfectants. When the shrimp grows to 3 cm to 5 cm, in the months of July and August when the water temperature is relatively high, the “enemy bacteria poison†(three generations of fish and shrimp) is splashed every 7 days to 10 days, each time with 0.4 ppm. At the same time as the "enemy bacteria poison" is applied, the amount of dissolved oxygen in the water body is increased with high-speed oxygen spills. Cross-use can inhibit the growth of pathogenic microorganisms such as bacteria and ciliates.
Heavy rain can easily cause stratification of the sea and fresh water, causing major changes in the water environment, resulting in an increase in oxygen deficiency, ammonia nitrogen, and a decrease in the total alkalinity, causing the onset and death of shrimp. At this point, attention should be paid to preparing fresh water for surface drainage before the rain and applying zeolite powder and lime powder. After the rain, the aerator can be activated conditionally and unconditionally can be pulled once with a big eye to prevent the water layer.
Six, feed feeding
1. Use high quality feed. During the whole cultivation period, in order to ensure the nutritional needs of the shrimp, the opening material of the shrimp must be used. In the feed, “Yanyang†“Disease-resistant nutrient†(1g/kg) and “Fish compound vitamin†(2g/kg) should be added in order to achieve Comprehensive nutritional supplements and enhanced disease resistance.
2. Feeding method. In the first month of release, the rice was fed 4 times a day. It can be increased to 6 times later. The feed coefficient is generally 1.5 from 6am to 9pm.
VII. Disease Prevention
1. In addition to the long-term addition of "disease-resistant and immune-immune nutrients" and "combined vitamins for fish" in the feed during the breeding process, on the 1st to the 5th and the 15th to the 20th of each month, the banlangen 3g shall be added to the feed. / Kg material, three yellow powder 3g / kg material, compound ciprofloxacin hydrochloride 1.5g / kg material, and even served for 7 days, can prevent various diseases caused by Vibrio.
2. When the length of prawn is 4 cm to 5 cm in length, add “Yinyang Brand†“Fish and Prawns†once a month to prevent the occurrence of parasitic diseases.
Attachment: China prawn disease prevention example 1
1. Time: May 22, 2001.
2. Location: Shrimp Pond, No.2, Rongcheng Breeding Joint Venture, Zhukou Fishery Company, Shidao Town, Rongcheng City, Shandong Province.
3. Area: 20 acres.
4. New diagnosis: Vibrio infection causes death.
5. Prescription: The first day of external use of "three generations of fish and shrimp An" 0.15ppm Quanchiposa, the next day with "enemy poison" 0.4ppm Quanchiposa, used alternately twice. Oral "compound ciprofloxacin hydrochloride" 2 g/kg material plus "combined vitamins for fish" 2.5 g / kg feed for 5 consecutive days.
6. Treatment: Before the treatment, 50 pigs were killed each day: on May 23, medication was started, 20 on the 24th, and 5 on the 25th. No death occurred on May 26, and the shrimp body tended to be stable.
Prawn disease prevention example 2
1. Time: June 23, 2001.
2. Ibid., No. 4 and No. 6 shrimp ponds.
3. Area: 70 acres (two shrimp ponds).
4. Body length: 6 cm to 7 cm.
5. New diagnosis: Vibrio infection. Intestinal congestion, inflammation, jaundice.
6. Prescription: For external use: 300ml/mu of “enemy bacteriophage†spilled, and use “3rd generation fish and shrimp safety†0.2ppm Quanchiposa the next day, alternately twice. Oral administration of “Blanclan†3 g/kg plus “Compound ciprofloxacin hydrochloride†2 g/kg plus “Fish compound vitamin†2.5 g/kg plus “Disease-resistant nutrient†1.5 g/kg. Use for 5 days.
7. Treatment: The number of deaths decreased after 3 days. After 5 days, the condition was controlled and no death occurred. The shrimp body tended to be stable.
1. It is better to build on the high tide line 0.5 meters to 1 meter;
2. The salinity of seawater is generally not higher than 35 ‰, the lowest is not less than 8 ‰, and the suitable range is 10 ‰ to 30 ‰. pH 7.4 to 8.6;
3. The aquaculture pond covers an area of ​​10 mu to 20 mu. The water in the pond will be drained, the depth of the pond is 3 meters, and the water depth is more than 2 meters.
Second, pre-release preparations
1. Clean up the entire pond, remove all sludge from the bottom of the pond, and plow till it is exposed.
2. Thoroughly clear the pond and kill the harmful organisms in the pond. Use “Bromochlor Hydantoin†5ppm to disinfect the shrimp pond, reservoir, and all inlet canals to achieve bactericidal action.
3. Cultivate basic bait (ie, natural bait). After clearing the pond, fill in 30 cm of water and apply organic fertilizer and inorganic fertilizer. Organic fertilizer can be used after the fermentation of cow dung, 50 kg per acre. Inorganic fertilizer can be used diammonium, three materials, phosphate fertilizer, apply 2 kg to 3 kg per acre. Single-cell algae, beneficial bacteria, and microbenthos were cultured.
Third, the choice of shrimp
1. Choose a healthy shrimp that has not been infected with virus after it has been rigorously cultivated in accordance with the operating instructions for shrimp breeding. The groups of shrimps are tidy, full and transparent muscles, normal pigments in the appendages, full of food in the gastrointestinal tract, lively swimming, strong water repellency, no external parasites and attachments.
2. Individuals of shrimp are more than 1 cm (15 days to 20 days).
Fourth, the seedlings at this time require a depth of 60 cm to 80 cm, the water quality is tender, the water temperature is above 14°C, and the pH is between 7.8 and 8.6. In case of strong winds and heavy rain, it is not appropriate to plant seedlings.
V. Breeding management
1. Daily management Every morning and evening, each patrols the pool. Observe the situation of the shrimp ponds carefully, pay attention to the water color, shrimp activity and whether or not there are dead shrimps, and make a record.
2. Water Environment Management Maintain the water level. In the early period of cultivation, it is generally not necessary to change the water. Simply add 5 cm to 8 cm of water to the pool every day to keep the water level at 1.5 meters to 2 meters. During the middle and late breeding period, the amount of water to be changed every day should be controlled to be about 10 cm deep. Once a month, zeolite powder is delivered once, 20 kg per mu.
Adjust water quality Use zeolite, calcium peroxide water quality protection agent and photosynthetic bacteria to regulate water quality and maintain the natural food in the water body. Keep the water color green, green-yellow and brown-green with a transparency of about 30 cm.
When using water disinfectants. When the shrimp grows to 3 cm to 5 cm, in the months of July and August when the water temperature is relatively high, the “enemy bacteria poison†(three generations of fish and shrimp) is splashed every 7 days to 10 days, each time with 0.4 ppm. At the same time as the "enemy bacteria poison" is applied, the amount of dissolved oxygen in the water body is increased with high-speed oxygen spills. Cross-use can inhibit the growth of pathogenic microorganisms such as bacteria and ciliates.
Heavy rain can easily cause stratification of the sea and fresh water, causing major changes in the water environment, resulting in an increase in oxygen deficiency, ammonia nitrogen, and a decrease in the total alkalinity, causing the onset and death of shrimp. At this point, attention should be paid to preparing fresh water for surface drainage before the rain and applying zeolite powder and lime powder. After the rain, the aerator can be activated conditionally and unconditionally can be pulled once with a big eye to prevent the water layer.
Six, feed feeding
1. Use high quality feed. During the whole cultivation period, in order to ensure the nutritional needs of the shrimp, the opening material of the shrimp must be used. In the feed, “Yanyang†“Disease-resistant nutrient†(1g/kg) and “Fish compound vitamin†(2g/kg) should be added in order to achieve Comprehensive nutritional supplements and enhanced disease resistance.
2. Feeding method. In the first month of release, the rice was fed 4 times a day. It can be increased to 6 times later. The feed coefficient is generally 1.5 from 6am to 9pm.
VII. Disease Prevention
1. In addition to the long-term addition of "disease-resistant and immune-immune nutrients" and "combined vitamins for fish" in the feed during the breeding process, on the 1st to the 5th and the 15th to the 20th of each month, the banlangen 3g shall be added to the feed. / Kg material, three yellow powder 3g / kg material, compound ciprofloxacin hydrochloride 1.5g / kg material, and even served for 7 days, can prevent various diseases caused by Vibrio.
2. When the length of prawn is 4 cm to 5 cm in length, add “Yinyang Brand†“Fish and Prawns†once a month to prevent the occurrence of parasitic diseases.
Attachment: China prawn disease prevention example 1
1. Time: May 22, 2001.
2. Location: Shrimp Pond, No.2, Rongcheng Breeding Joint Venture, Zhukou Fishery Company, Shidao Town, Rongcheng City, Shandong Province.
3. Area: 20 acres.
4. New diagnosis: Vibrio infection causes death.
5. Prescription: The first day of external use of "three generations of fish and shrimp An" 0.15ppm Quanchiposa, the next day with "enemy poison" 0.4ppm Quanchiposa, used alternately twice. Oral "compound ciprofloxacin hydrochloride" 2 g/kg material plus "combined vitamins for fish" 2.5 g / kg feed for 5 consecutive days.
6. Treatment: Before the treatment, 50 pigs were killed each day: on May 23, medication was started, 20 on the 24th, and 5 on the 25th. No death occurred on May 26, and the shrimp body tended to be stable.
Prawn disease prevention example 2
1. Time: June 23, 2001.
2. Ibid., No. 4 and No. 6 shrimp ponds.
3. Area: 70 acres (two shrimp ponds).
4. Body length: 6 cm to 7 cm.
5. New diagnosis: Vibrio infection. Intestinal congestion, inflammation, jaundice.
6. Prescription: For external use: 300ml/mu of “enemy bacteriophage†spilled, and use “3rd generation fish and shrimp safety†0.2ppm Quanchiposa the next day, alternately twice. Oral administration of “Blanclan†3 g/kg plus “Compound ciprofloxacin hydrochloride†2 g/kg plus “Fish compound vitamin†2.5 g/kg plus “Disease-resistant nutrient†1.5 g/kg. Use for 5 days.
7. Treatment: The number of deaths decreased after 3 days. After 5 days, the condition was controlled and no death occurred. The shrimp body tended to be stable.