Several methods of wintering of Roche shrimp
First, a simple greenhouse wintering law. There are two basic methods for choosing a holding pool: one is to choose a sheltered condition that is better, one or two acres, and the drainage and irrigation requirements are convenient for the village edge pond and the entrance pond as a temporary pond. After repairing the Tongzha, after the reinforcement of the pond foundation, the ponds can be drained, cleaned and disinfected, and then returned to the pond one week later to keep the water depth at 1.5 meters and equipped with micro aerators, water pumps, blowers and other mechanical facilities. After the beginning of winter, when the minimum daily water temperature drops below 18°C, it is advisable to choose a healthy, full-bodied, neatly-sized and lively giant shrimp to enter the pond for raising. It is advisable to keep 500-600 kilograms of mature shrimp per acre. Another approach is to use the original shrimp pond as a holding pool. The shrimp ponds will be listed or incorporated into other ponds for raising. The ponds can then be drained, cleaned and disinfected, and then put into the pond so that the water depth can be maintained at 1.5 meters. The bamboo ponds or lugs are used to hold the holding ponds. Separated into two acres of pool, leaving the middle of the sidewalk, and finally you can select the strong and lively Macrobrachium into the pool, the amount of stocking and practice the same. There are also two ways to prevent cold and heat. Method 1: Set up windproof sheds and cold shelters on the west and north sides of shrimp ponds. On the one hand, it is framed with bamboo or wood and erected on the west and north sides of the shrimp pond. It is about 3 meters high. It is then tied with straw or sugar cane to form a rectangular grass basket and tied to a bamboo frame to stop the cold wind. The attack did not cause the temperature of the water to drop sharply; on the other hand, a bamboo frame spread across the surface of the fish ponds, and was covered with haystacks. Some rice straw was thrown in between, so that when the cold air struck, the giant shrimps clustered in the grass to keep warm. Method 2: In the wintering pond around and above, use bamboo rafts or thin steel bars to form an arch frame, and then cover the insulation shed with agricultural film, which can play a better insulation effect. In addition, dig a drainage ditch around the wintering pond to prevent rainwater from flowing into the pool.
This kind of insulation method has the advantages of less investment, easy material extraction and good heat preservation performance. It can increase the water temperature in the greenhouse by about 5°C than the outside world. It has good application effect in the Pearl River Delta and can enable Macrobrachium to safely live in winter for a certain period of time, prolonging the listing period. , Increased economic efficiency. However, in this method, mechanical aeration and water exchange should be performed during the heat preservation to prevent the floating head of Macrobrachium from growing safely.
Second, the greenhouse wintering law. Steel bars, glass or agricultural film cover structures are generally used. The wintering pond is made of masonry and cement, and equipped with heating, aeration, and drainage facilities. Each pond has an area of ​​30-50 square meters, a pool depth of 1.5 meters, a water depth of 1.2 meters, and a stock of rice per cubic meter. About 3-5 kg ​​of shrimp is appropriate. After entering the pool, Macrobrachium must perform management such as heat preservation, aeration, water change, and proper feeding. The temperature of wintering water in the greenhouse is maintained at 18-22 °C, which should not be too high, so as to avoid frequent impacts on the constitution of the Macrobrachium esculenta and reduce the yield. If the water temperature is low, you can use agricultural electric heating wire or electric heating rod heating, but pay attention to electricity safety. The dissolved oxygen in wintering pond water is required to be kept above 3 mg/l. If the temperature is low for consecutive days, the water cannot be changed, and the dissolved oxygen level drops, then the air pump is used to fill the air. When the weather turns warm, it is necessary to pull the film outside the winter pool door open to allow outside fresh air to blow in; and to replace some of the new water in order to maintain good water quality; but also according to the weight of commercial shrimp weight appropriate 3-5% pellet feed, so that Shrimp remains strong and plump to increase its survival rate.
The wintering sheds of greenhouses are more durable and have better insulation performance, but they have higher one-time cost, and they can be used as both fish and shrimp nursery ponds and nursery stock greenhouse cultivation pools to make overall arrangements to save expenses and increase profits.
Third, hot spring water, factory surplus hot water overwintering method. According to the statistics of the Guangdong Geological Department, there are 265 underground hot spring water resources in the province, most of which are located in hilly areas; there are also many waste waters discharged from power plants, which provide favorable conditions for wintering of giant shrimp. However, the underground hot spring water is basically divided into two types: carbonic acid type and sulfur type. The former is non-toxic and the latter is toxic. Therefore, before using hot spring water or hot water in the factory, the water quality, water temperature, and flow must be measured scientifically. If the water quality meets the fishery water standards and the water temperature is maintained above 30°C for many years, and the water resources are abundant and the flow rate is relatively large, the water reservoirs and overwintering pools can be built according to the water temperature and flow, and then the hot springs or factories can be used first. The hot water is poured into the reservoir and the enthalpy is evacuated to adjust the water temperature to between 26-30°C. Then the overwintering pool is introduced from the reservoir to keep the temperature within a moderate range. The amount of stocking, feeding, and management techniques are basically the same as the above methods. However, in the breeding process, the water temperature measurement must be done properly. If the water temperature is lower or higher than the proper temperature range, it should be dealt with promptly.
IV Infusion:
Intravenous simply means "within vein" (or "inside the vein"). Therapies administered intravenously are often included in the designation of specialty drugs. Intravenous infusions are commonly referred to as drips because many systems of administration employ a drip chamber, which prevents air from entering the blood stream (air embolism), and allows an estimation of flow rate.
Intravenous therapy may be used to correct electrolyte imbalances, to deliver medications, for blood transfusion or as fluid replacement to correct, for example, dehydration. Intravenous therapy can also be used for chemotherapy.
Compared with other routes of administration, the intravenous route is the fastest way to deliver fluids and medications throughout the body. The bioavailability of the medication is 100% in IV therapy.
Intravenous infusions are fluid solutions administered through a vein. There are numerous different types of solutions available, but they can be broken down into simple categories depending on the function they serve. Some replace lost fluids, and others provide nutrients, replace lost blood, and deliver medications.
One of the most common uses for intravenous infusions is to replenish fluids lost through dehydration. These infusions often contain normal saline solution, a combination of sterile water and sodium chloride. This solution is known as an isotonic crystalloid, or a solution that contains the same amount of electrolytes as plasma in the body. It is used in cases of moderate to severe dehydration, such as that caused by vomiting or diarrhea, when replacing the fluids quickly is vital.
When a patient`s gastrointestinal tract is compromised and nutrients cannot be absorbed - or eating can worsen the condition - intravenous infusions called total parenteral nutrition may be given. These solutions contain a mix of sterile water, electrolytes, sugar, proteins, fats, and other nutrients, depending on the needs of the patient. Diseases and disorders that commonly require total parenteral nutrition include late stages of Crohn`s disease, obstructive bowel disorder, and ulcerative colitis.
Intravenous infusions are also used to deliver medication directly to the blood stream. Certain medications, such as intravenous immunoglobulin, a type of antibody, can only be given through the vein. Other medications, such as certain narcotic pain relievers, are given intravenously because the method allows them to they work faster than when taken orally. Chemotherapy for treatment of cancer is also typically given intravenously.
When performed by a medical professional, intravenous infusions are typically safe. The most common reaction is mild pain and redness at the site of the injection, although different medications may cause different side effects. Any time the skin is punctured, there is a risk of infection. Having a medical professional, typically a nurse, monitor the intravenous infusion and change the injection site when irritation is evident can help prevent complications.
IV Infusion,Glucose IV Infusion,Intravenous Infusion
NOUVASANT GROUP LTD. , https://www.nouvasant.com