Mass cultivation of squid summer flower technology
Squid (triangled plover, breamhead bream) is a freshwater high-quality fish. It is not only an excellent species for pond culture, but also suitable for stocking on large water surfaces. It uses its characteristics that it is easy to form natural populations and achieves the purpose of resource conservation and multiplication. The techniques for large-scale cultivation of squid summer flowers are described below:
First, summer flower cultivation pond conditions
The summer flower cultivation ponds require sufficient water sources, no water pollution, and easy injection and drainage. The area should not be too large, generally 1-3 mu, water depth 1-1.2 meters is appropriate. The pond should not leak water, and there should be a proper amount of silt on the bottom of the pool.
Second, prepare before restocking
1. Disinfection in Clear Pond: Before draining, drain the water, remove excess silt or weeds, and renovate the reinforced ponds to plug the loopholes. In the 7-10 days before the seedlings injection, water injection 5-10cm, per acre with 50-80kg quick lime mixed with water, while turning the bottom mud, so that it is mixed with the lime slurry; also can be used bleaching powder 6-10kg of water after Quanchiposa To kill wild fish and pathogens.
2. Appropriate fertilizer: In the 4-5 days before the fish is under the pond, water is poured into the pond at 50-60cm. The influent water is best filtered through a sieve to prevent wild fish and other predators from entering the pond. At the same time, 100-150kg of human and animal manure is applied per acre, and an appropriate amount of chemical fertilizer is used as a base fertilizer to cultivate plankton so that the fish seedlings will have palatable food.
3. Testing water and pulling nets: The day before releasing the plants, “test water†should be carried out to check if the drugs and toxicity of the cultivation ponds are clear. At the same time, use a dense mesh net to pull 1-2 times in the pond to remove the few frog eggs, small trash fish and predator organisms that may be present in the pond.
Third, fry stocking
Since the catfish spray is very delicate, transportation and seeding operations of the spray should be careful. If you purchase water, you should first put the nylon bag filled with water into the pond water and soak for 20-30 minutes until the water temperature inside the bag is basically the same. Stocking densities generally range from 10-15 million per acre, and each pond should be stocked with the same batch of fry. The time of laying the seedlings is generally selected on sunny mornings. If windy weather is encountered, the seedlings should be planted on the windward side of the pond.
Fourth, feeding and management
1. Feeding and fertilizing: The fry begins to spill soymilk. Soak soybeans in water for 5-6 hours. Then use a refiner to grind 1 kilogram of dried soybeans into 15-20kg of soy milk. The ground soybean milk should be splashed in time. Each day, 2 to 3 kilograms of dried soybeans are used per acre of water. The soybean milk should be poured into the water evenly and mist-likely along the edge of the pond. At the same time, according to the water quality of the pond, the manure and livestock manure should be applied once every 3-5 days. In the later stage of cultivation, when the size of carp seedlings reaches 2cm, the amount of soymilk feeding is gradually reduced, and the feeding of concentrate feed (such as sub-powder, fine mash, etc.) is generally increased. 1.5 kilograms to ensure that the fry have sufficient nutrient requirements, promote its rapid growth, and enhance physical fitness. However, whether it is feeding or fertilizing, it must be flexibly increased or decreased according to the weather conditions, that is, when rainy days or hot weather is encountered, the amount of feeding should be appropriately reduced.
2, adjust the water quality: when the fish is just under the pond when the water level is controlled in the 50-60cm, with the growth of fry, and constantly raise the water level, generally every 3-5 days water injection once, the amount of water injection is mainly determined by the water quality, ie water thin When more fertilizer, less water, if the water should be more fertilizer than water, gradually increase the water level to the highest, and always maintain the pool water and other fertilizers, the transparency of about 25-30cm, to ensure that water quality "fat, live, cool."
3, to strengthen disease prevention: adhere to the second round of the morning and evening patrol ponds, detailed observation of fish fry activities and water quality changes, to avoid the occurrence of floating head hypoxia, to control the amount of fertilizer by feeding, water quality regulation and other methods to prevent sudden changes due to weather or over-fertilization To degrade water quality, we must prevent the occurrence of common diseases such as bubble disease and horse-racing disease. If the water quality becomes old during the later period of cultivation, besides timely water injection, quicklime can be used to improve the water quality. In addition, if frog eggs, water snakes, and other predator organisms and foreign objects are found on the surface of the pond every day, they must be cleared in time.
Fifth, pull the net exercise
After 25-30 days of cultivation, the carp seedlings can generally reach the 3cm specification. Because the eel's summer flowers are good, they are impatient, and they are easily attached to the net. The operation of the pond is a little careless, often causing damage and affecting the survival rate of the pond. Therefore, in addition to paying attention to investing enough food in the later stages of cultivation, and enhancing the summer physique of the squid, it is necessary to carry out essential net-pulling exercises before leaving the pond. Pull-in exercises should be conducted on a sunny morning. Exercise once a day or the next day. When the nets are pulled for the first time, put the fry back to the original position after a few shots, or use the nets of dilute nets to pull back and forth in the pond twice. After the second time of drawing exercise, you can squash the summer flowers in a dense network, or you can move them into the long cages. The length of the intensive time depends on the tolerance of the fish, but you must be careful when you pull the net. Try not to stick the fish to the net or leave the water. In this way, after 3-4 times of pulling exercise, the fry's ability to resist anoxia and intensive tolerance is enhanced. If it is a long-distance transportation, it is better to transfer the summer flowers into the cage of clean water for 3-5 hours. Excreta and excessive mucus will be excreted to increase the survival rate of outbound transportation.
First, summer flower cultivation pond conditions
The summer flower cultivation ponds require sufficient water sources, no water pollution, and easy injection and drainage. The area should not be too large, generally 1-3 mu, water depth 1-1.2 meters is appropriate. The pond should not leak water, and there should be a proper amount of silt on the bottom of the pool.
Second, prepare before restocking
1. Disinfection in Clear Pond: Before draining, drain the water, remove excess silt or weeds, and renovate the reinforced ponds to plug the loopholes. In the 7-10 days before the seedlings injection, water injection 5-10cm, per acre with 50-80kg quick lime mixed with water, while turning the bottom mud, so that it is mixed with the lime slurry; also can be used bleaching powder 6-10kg of water after Quanchiposa To kill wild fish and pathogens.
2. Appropriate fertilizer: In the 4-5 days before the fish is under the pond, water is poured into the pond at 50-60cm. The influent water is best filtered through a sieve to prevent wild fish and other predators from entering the pond. At the same time, 100-150kg of human and animal manure is applied per acre, and an appropriate amount of chemical fertilizer is used as a base fertilizer to cultivate plankton so that the fish seedlings will have palatable food.
3. Testing water and pulling nets: The day before releasing the plants, “test water†should be carried out to check if the drugs and toxicity of the cultivation ponds are clear. At the same time, use a dense mesh net to pull 1-2 times in the pond to remove the few frog eggs, small trash fish and predator organisms that may be present in the pond.
Third, fry stocking
Since the catfish spray is very delicate, transportation and seeding operations of the spray should be careful. If you purchase water, you should first put the nylon bag filled with water into the pond water and soak for 20-30 minutes until the water temperature inside the bag is basically the same. Stocking densities generally range from 10-15 million per acre, and each pond should be stocked with the same batch of fry. The time of laying the seedlings is generally selected on sunny mornings. If windy weather is encountered, the seedlings should be planted on the windward side of the pond.
Fourth, feeding and management
1. Feeding and fertilizing: The fry begins to spill soymilk. Soak soybeans in water for 5-6 hours. Then use a refiner to grind 1 kilogram of dried soybeans into 15-20kg of soy milk. The ground soybean milk should be splashed in time. Each day, 2 to 3 kilograms of dried soybeans are used per acre of water. The soybean milk should be poured into the water evenly and mist-likely along the edge of the pond. At the same time, according to the water quality of the pond, the manure and livestock manure should be applied once every 3-5 days. In the later stage of cultivation, when the size of carp seedlings reaches 2cm, the amount of soymilk feeding is gradually reduced, and the feeding of concentrate feed (such as sub-powder, fine mash, etc.) is generally increased. 1.5 kilograms to ensure that the fry have sufficient nutrient requirements, promote its rapid growth, and enhance physical fitness. However, whether it is feeding or fertilizing, it must be flexibly increased or decreased according to the weather conditions, that is, when rainy days or hot weather is encountered, the amount of feeding should be appropriately reduced.
2, adjust the water quality: when the fish is just under the pond when the water level is controlled in the 50-60cm, with the growth of fry, and constantly raise the water level, generally every 3-5 days water injection once, the amount of water injection is mainly determined by the water quality, ie water thin When more fertilizer, less water, if the water should be more fertilizer than water, gradually increase the water level to the highest, and always maintain the pool water and other fertilizers, the transparency of about 25-30cm, to ensure that water quality "fat, live, cool."
3, to strengthen disease prevention: adhere to the second round of the morning and evening patrol ponds, detailed observation of fish fry activities and water quality changes, to avoid the occurrence of floating head hypoxia, to control the amount of fertilizer by feeding, water quality regulation and other methods to prevent sudden changes due to weather or over-fertilization To degrade water quality, we must prevent the occurrence of common diseases such as bubble disease and horse-racing disease. If the water quality becomes old during the later period of cultivation, besides timely water injection, quicklime can be used to improve the water quality. In addition, if frog eggs, water snakes, and other predator organisms and foreign objects are found on the surface of the pond every day, they must be cleared in time.
Fifth, pull the net exercise
After 25-30 days of cultivation, the carp seedlings can generally reach the 3cm specification. Because the eel's summer flowers are good, they are impatient, and they are easily attached to the net. The operation of the pond is a little careless, often causing damage and affecting the survival rate of the pond. Therefore, in addition to paying attention to investing enough food in the later stages of cultivation, and enhancing the summer physique of the squid, it is necessary to carry out essential net-pulling exercises before leaving the pond. Pull-in exercises should be conducted on a sunny morning. Exercise once a day or the next day. When the nets are pulled for the first time, put the fry back to the original position after a few shots, or use the nets of dilute nets to pull back and forth in the pond twice. After the second time of drawing exercise, you can squash the summer flowers in a dense network, or you can move them into the long cages. The length of the intensive time depends on the tolerance of the fish, but you must be careful when you pull the net. Try not to stick the fish to the net or leave the water. In this way, after 3-4 times of pulling exercise, the fry's ability to resist anoxia and intensive tolerance is enhanced. If it is a long-distance transportation, it is better to transfer the summer flowers into the cage of clean water for 3-5 hours. Excreta and excessive mucus will be excreted to increase the survival rate of outbound transportation.
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