This product is made of barrel , plunger ,piston and needle.This barrel should be clean and transparent enough to easy observe.Barrel and piston matches well and it has a good property of sliding,and is easy to be used. 10ml Disposable Medical Sterile Syringe 10ml ;Disposable Medical Sterile Syringe;Medical Factory Changzhou Yuandong Medical Equipments Co.,Ltd , https://www.czydmedical.com
The product is applicable to push the solution to the blood vein or subcutaneous , also can extraction blood from the human body in the veins.It suits users of different age and is the basic methods of infusion.
Spiral breeding and management technology
Snail is a traditional aquatic product in China. It is fresh and delicious, rich in nutrients, and is popular with people. First, living habits The snail is a gastropod mollusc, and the common ones are Chinese round snails and square round snails. Tian Luoxi lived in the waters that are warm in winter, cool in summer, rich in bottom sediments, rich in foods, and clean in water. He especially likes to cluster in microfluidic areas. The snails are miscellaneous, and feed on aquatic plants, stems, leaves, bacteria, and organic debris. They prefer nighttime activities and feeding. Spirulina starts its activity and feeding at a water temperature of about 15°C, and the optimal temperature for growth is 20°C to 27°C. When the temperature is above 30°C, the body is retracted into the spiral shell to stop feeding, and the colony is in the shade or sneak into the mud to escape the heat. Water temperature will exceed 40 °C will be dead, below 8 °C will sneak into the mud in the hibernation, the water temperature in the spring of the following year will rise to about 15 °C before re-dwelling activities and feeding. Second, the breeding characteristics of snails male and female allogeneic, general female snail large and round, male snail small and long. The shape is mainly distinguished from the antennae of the head: the female and the right antennae have the same size and extend to the front; the right antennae of the male snail are short and thick, and the distal end bends inwards rightwards. There are few females in the snail population and 75% to 80% females in the female population. The breeding begins in April each year, and the fertile season begins from June to August. The snail is born as an ovum, and the development of the fertilized egg to the development of the snails is performed in the female. The number of litter size is related to the age of species of snails and environmental conditions. Generally, 20 to 40 calves can be born per litter. Third, artificial breeding 1. Huo Chi construction to choose ample water, convenient management, both flow and pollution-free places to build a special screw pool. The pool is about 1.5 meters wide. The length of the pool may depend on the terrain, generally 10 meters to 15 meters. Pool depth 30 cm to 50 cm. It is advisable that several spiral pools are arranged in a row and graded construction. The two ends of the pool are provided with inlets and outlets, and anti-escape barriers are installed. A 20 cm high dike is built between the two pools for easy walking. The bottom of the pool is filled with 10 cm thick mud. The pond can be used to plant aquatic plants such as white leeks, asparagus, or water lilies, duckweed, etc., which not only provide shelter for summer heat, habitat for climbing, and providing bait, but also creates a good ecological environment, and can increase the utilization rate of snails and increase income. Build a 60 cm to 80 cm wall or use a mesh fence around the pond. 2. Lozenges and management Generally, the species of snails can be introduced from the end of March. The snails can be purchased from the bazaar or self-acquired. Each species of snail is placed on 100 to 120 snails, and the pond can also be used to raise 4 summer squid. Put a proper amount of manure in the pool before putting on the screw, and cultivate food organisms. After the snails are placed, they are fed with leaves, rice bran, bean cakes, vegetable cakes and animal internal organs. The cakes are soaked and softened and fed, and other feeds are chopped and mixed. Feeding amount is generally calculated as 1% to 3% of the total weight of the snail, fed once every two or three days, and the feeding amount is adjusted according to the growth and feeding conditions of the snail. Feeding does not need to be positioned, and more feeding points should be set up. When the water temperature is lower than 15°C or higher than 30°C, no feeding is required. The snail disease is small. The daily management focuses on controlling water and preventing ducks, cats, snakes, rats, and birds from entering the pond to catch snails. It often inspects and checks to prevent snails from fleeing. Snails should be bred in shallow water and microfluidic aquaculture. The depth of pool water should be 25 cm to 30 cm. It is necessary to maintain the flow of pool water during the breeding season and high temperature period. During the hibernation, snails will dive into the mud, leaving only a round hole in the mud to breathe. In order to maintain sufficient dissolved oxygen in the water, the pool water is changed every three or four days. 3. Harvesting When the snail grows to more than 10 grams, the meat is tender and fleshy, which is most welcomed by the market and can be collected and listed in batches. During harvesting, the pool water should be drained and collected directly from the pool. Note that about 60% of the large individual snails are selected for snails.