In paddy field, water aquaculture is a new type of aquaculture that is developed on the basis of rice field cultivation combined with the needs of agricultural structure adjustment. The cultivation of eel algae in paddy fields is a simple and easy-to-use ecological method for raising crabs in paddy fields. Healthy breeding. Since 2000, Jurong City, Jiangsu Province has vigorously promoted this breeding mode, and achieved good economic, social and ecological benefits, which has found a new way for the sustainable development of rice paddy farming. The relevant technical points are now described as follows:
I. Selection and arrangement of rice fields The rice fields with abundant water supply, fresh water, no pollution, convenient irrigation and drainage, and good water retention are selected. First, a ditches were excavated about 2.0m away from the paddy field, and the field ridges were reinforced and raised to 2.0m in width and 1.0m in width above the field surface. Then, according to the size of the field, open the "10" or "well" word ditch, which is generally 0.5m wide and about 0.6m deep and communicates with the ditch. In this type of well-ordered paddy field, the ditch has a deeper water storage and the middle field surface is shallow. The water depth is between 0.6m and 0.8m on average, which is very suitable for crab farming.
Second, the prevention of escape facilities construction escape prevention facilities is the key to success or failure of rice field crabs. The hard film is generally used to prevent escape from the wall. The height of the wall is about 0.5m, and the base of the wall is about 0.2m. Some of the inner layers are also equipped with an anti-escape net, with a height of 1.0m to 1.5m, which can achieve both the purpose of preventing crabs from escaping and also preventing the enemy from entering the fields.
Third, set up a holding area Considering the low temperature of the early culture, so that both the centralized management of crab species and the growth of Tanaka aquatic plants can be considered. Therefore, a “crab species holding area†is surrounded by a polyethylene mesh cloth in the pool. The general net height is about 1.2m, stepping into the mud bottom 0.2m or so, and affixing a plastic film with a height of 0.3m along the upper end to prevent crab species from escaping from the holding area. The holding area usually accounts for about 1/5 of the crab pool. In the holding area, some sterilized water peanuts or other aquatic plants can be transplanted, covering about 70% of the area.
IV. Cultivation of Elodea Elodea is planted with about 500kg of organic fertilizer per acre before transplanting. It is usually planted from December to the end of January, so that it can take advantage of the low temperature resistance of Elodea and promote its early growth. And form dominant populations as soon as possible. Generally, the sowing rate of the mu is about 20kg so as to finally reach the water grass coverage rate of about 70%. The cultivation method uses a planted or artificial planting method (ditch not planted).
5. The snail's migratory snail is a natural active bait for river crabs. It can also absorb organic nutrients in the pool and play a role in water purification. The time for emigrating snails is generally before and after Ching Ming. The quantity is about 500 kg per mu. This is the snail breeding season. The young snails that are bred are thin and tender, which is an excellent bait for juvenile crabs.
VI. Selection and stocking of crab species Selection of species with regular, disease-free, injury-free, appurtenant limbs, and agile, self-cultivated river waters of the Yangtze River Eriocheir sinensis.
When the crabs are released, they should adhere to the "three adaptations" and "a temporary education", that is, appropriate density, timely stocking, appropriate specifications and stocking after the first holding. The stocking density of crabs is controlled at about 600 per acre, and the specification is between 100/kg and 200/kg. The stocking time is from the beginning of February to the end of March, and they are all sterilized by drug dipping before they are placed. When Elodea forms a dominant population (about 40% of the surface of the crab pond) before the end of April, the dense mesh can be removed to allow the crab species to enter the entire rice field.
Seven, feeding and management
1. Feed the bait and adhere to the principle of “mixing meat and vegetarian ingredients, combine refined greens†and implement the scientific feeding method of “four orders and four readingsâ€. The focus of the bait-feeding arrangement throughout the breeding process is: during the holding period and the initial stage of stocking, animal-based concentrates are used as the main ingredients; in the early period of feeding, plant-based concentrates are used as the mainstay; During the promotion stage, animal feeds are the mainstay.
2. Adjustment of Water Level and Water Quality Regulating Water Level In accordance with the growth and living habits of crabs and the requirements for the growth of aquatic weeds, the water level in the early stage of paddy fields is generally increased from 0.3 m to 0.5 m to 0.6 m; in summer, the high temperature season is maintained at 0.6 m to 0. 8m, the autumn water level is adjusted to about 0.6m. The adjustment of water quality mainly takes the following measures: First, do timely fertilizer work to ensure the growth of aquatic plants and snails in paddy fields; second, use photosynthetic bacteria; third, constantly replace new water, so as to maintain the water quality of crab ponds at all times. , cool and tender."
3. Prevention and control of crab disease In the whole feeding process of crabs, we adhere to the principle of “prevention as the main, active prevention and controlâ€, and ensure the quality and freshness of the feed, and timely remove the leftover bait. Due to the planting of aquatic plants and integrated control technologies, and the implementation of ecologically healthy farming, few diseases have occurred.
I. Selection and arrangement of rice fields The rice fields with abundant water supply, fresh water, no pollution, convenient irrigation and drainage, and good water retention are selected. First, a ditches were excavated about 2.0m away from the paddy field, and the field ridges were reinforced and raised to 2.0m in width and 1.0m in width above the field surface. Then, according to the size of the field, open the "10" or "well" word ditch, which is generally 0.5m wide and about 0.6m deep and communicates with the ditch. In this type of well-ordered paddy field, the ditch has a deeper water storage and the middle field surface is shallow. The water depth is between 0.6m and 0.8m on average, which is very suitable for crab farming.
Second, the prevention of escape facilities construction escape prevention facilities is the key to success or failure of rice field crabs. The hard film is generally used to prevent escape from the wall. The height of the wall is about 0.5m, and the base of the wall is about 0.2m. Some of the inner layers are also equipped with an anti-escape net, with a height of 1.0m to 1.5m, which can achieve both the purpose of preventing crabs from escaping and also preventing the enemy from entering the fields.
Third, set up a holding area Considering the low temperature of the early culture, so that both the centralized management of crab species and the growth of Tanaka aquatic plants can be considered. Therefore, a “crab species holding area†is surrounded by a polyethylene mesh cloth in the pool. The general net height is about 1.2m, stepping into the mud bottom 0.2m or so, and affixing a plastic film with a height of 0.3m along the upper end to prevent crab species from escaping from the holding area. The holding area usually accounts for about 1/5 of the crab pool. In the holding area, some sterilized water peanuts or other aquatic plants can be transplanted, covering about 70% of the area.
IV. Cultivation of Elodea Elodea is planted with about 500kg of organic fertilizer per acre before transplanting. It is usually planted from December to the end of January, so that it can take advantage of the low temperature resistance of Elodea and promote its early growth. And form dominant populations as soon as possible. Generally, the sowing rate of the mu is about 20kg so as to finally reach the water grass coverage rate of about 70%. The cultivation method uses a planted or artificial planting method (ditch not planted).
5. The snail's migratory snail is a natural active bait for river crabs. It can also absorb organic nutrients in the pool and play a role in water purification. The time for emigrating snails is generally before and after Ching Ming. The quantity is about 500 kg per mu. This is the snail breeding season. The young snails that are bred are thin and tender, which is an excellent bait for juvenile crabs.
VI. Selection and stocking of crab species Selection of species with regular, disease-free, injury-free, appurtenant limbs, and agile, self-cultivated river waters of the Yangtze River Eriocheir sinensis.
When the crabs are released, they should adhere to the "three adaptations" and "a temporary education", that is, appropriate density, timely stocking, appropriate specifications and stocking after the first holding. The stocking density of crabs is controlled at about 600 per acre, and the specification is between 100/kg and 200/kg. The stocking time is from the beginning of February to the end of March, and they are all sterilized by drug dipping before they are placed. When Elodea forms a dominant population (about 40% of the surface of the crab pond) before the end of April, the dense mesh can be removed to allow the crab species to enter the entire rice field.
Seven, feeding and management
1. Feed the bait and adhere to the principle of “mixing meat and vegetarian ingredients, combine refined greens†and implement the scientific feeding method of “four orders and four readingsâ€. The focus of the bait-feeding arrangement throughout the breeding process is: during the holding period and the initial stage of stocking, animal-based concentrates are used as the main ingredients; in the early period of feeding, plant-based concentrates are used as the mainstay; During the promotion stage, animal feeds are the mainstay.
2. Adjustment of Water Level and Water Quality Regulating Water Level In accordance with the growth and living habits of crabs and the requirements for the growth of aquatic weeds, the water level in the early stage of paddy fields is generally increased from 0.3 m to 0.5 m to 0.6 m; in summer, the high temperature season is maintained at 0.6 m to 0. 8m, the autumn water level is adjusted to about 0.6m. The adjustment of water quality mainly takes the following measures: First, do timely fertilizer work to ensure the growth of aquatic plants and snails in paddy fields; second, use photosynthetic bacteria; third, constantly replace new water, so as to maintain the water quality of crab ponds at all times. , cool and tender."
3. Prevention and control of crab disease In the whole feeding process of crabs, we adhere to the principle of “prevention as the main, active prevention and controlâ€, and ensure the quality and freshness of the feed, and timely remove the leftover bait. Due to the planting of aquatic plants and integrated control technologies, and the implementation of ecologically healthy farming, few diseases have occurred.
Pain Relief Patch For Neck Shoulder,Lower Back And Leg
Pain Relief Patch for neck shoulder, lower back and leg.
[Name] Medical Cold Patch
[Package Dimension] 10cm×12cm 2pieces/box
The pain relief patch is composed of three layers, namely, backing lining, middle gel and protective film. It is free from pharmacological, immunological or metabolic ingredients.
[Scope of Application] For cold physiotherapy, closed soft tissue only.
[Indications]
The patches give fast acting pain relief for strains, sprains, cramp, bruises, swollen areas or joint stiffness.
[How To Use a Patch]
Tear off the packaging bag and remove the patch. Remove the protective film and apply the patch on the skin. One piece, one time. The curing effect of each piece can last for 8-12 hours.
[Attention]
Do not apply the patch on the problematic skin, such as wounds, eczema, dermatitis,or in the eyes. People allergic to herbs and the pregnant are advised not to use the medication. If swelling or irritation occurs, please stop using and if any of these effects persist or worsen.notify your doctor or pharmacist promptly. Children using the patch must be supervised by adults.
[Storage Conditions]
Store below 30c in a dry place away from heat and direct sunlight.
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