Filament Cultivation and Management

The filaments are native to Southeast Asia and introduced from An Giang province in Vietnam. Its delicate meat, delicious taste, fast growth, high population yield, when the seedlings of the year can be raised by 800 grams -1000 grams. The largest individual can reach up to 20 kilograms, which is loved by farmers and consumers. It is very popular in the international market. The Hong Kong Spring Festival market has sold a pair of 6,000 Hong Kong dollars, which is a high-grade economic fish. China has been introduced in recent years. Geothermal resources in my county are abundant, and there are good conditions for artificial breeding and mass production of this species. Now we introduce the cultivation and management of broodstock broodstock for reference. First, broodstock cultivation. l, election pool. Should choose cold, hot water, adequate water, pollution-free, suitable for water quality thin, convenient irrigation and drainage intensive pool as a broodstock cultivation pool, an area of ​​2 to 3 acres, water depth of 2 meters is appropriate. 2, stocking. The stocking density should not be too large. The stocking of broodstock per mu should not exceed 120 kg. Before stocking, attention should be paid to the disinfection of clear ponds, and the introduction should be pure, neat in specifications, and free from disease, injury, and physical stamina. 3, feeding. Filaments can be fed with feed such as wheat bran, soybean cake, soybeans, etc. It is advisable to feed formula pellet feed. Wherever conditions are available, animals' livers and cocoons can also be fed. The feed should be placed on a fixed bait station, so it is advisable to eat it once a day, twice daily, with rain and cold weather. Second, aquaculture management. 1, insulation. This species is a tropical fish, strict temperature requirements, suitable water temperature 22-32 degrees, in the rainy days or the cold air comes, it is necessary to heat the water in time to warm up, usually to maintain the depth of the pool, do not be too eager to avoid temperature rise Cataclysm unfavorable broodstock growth. When the water temperature is too high, it must be filled with cold water in time. 2, water retention. One is to ensure that the water depth is more than 2 meters; the second is to ensure the water source. We must ensure adequate supply of cold and hot water in a timely manner. The third is to ensure the quality of water, maintain the quality of water, fertilizer, live, tender and cool, with a transparency of 35 cm or more. To frequently add new water, usually 2 to 3 times a month, add 10 to 20 centimeters of water each time, let go of the old water before adding water, and increase the number of water changes and the amount of water in summer. Each nursery should be equipped with an aerator for oxygenation or first aid. During the overwintering period, it is appropriate to uncover the insulation coverage in good weather to facilitate air circulation and exchange. 3, keep food. A guarantee of food nutrition, food requirements are high in protein content of fresh feed, can not feed rotten food, nutrition, incomplete food; 2 to ensure the amount of food, the variety of food habits, food intake, pay attention to on-demand feeding; Food hygiene, we must often clean the table, remove the residual bait debris, often linked to disinfection. 4, prevent disease. The prevention of diseases of filaments should be based on prevention. The specific prevention measures are: (1) maintain the pool water temperature above 20 degrees; (2) regular use of quicklime 10-15 kg/mu (once per week) to disinfect the water body, also available Lppm bleach solution; (3) sulfa drugs can be fed with bait; (4) timely adjust the water quality, often wash the table and disinfect it. The common viruses of silkworms include print disease, red skin disease, and crabhead disease. Generally, the disease can be cured by taking the right medicine. Generally, under the premise of prevention, plus proper feeding, filaments will not cause disease. 5, prevention. The first is to clear pool weeks of weeds, guard against livestock down the pool; the second is to stay on duty throughout the winter season, found that hidden problems in a timely manner, rainy, hot, cold weather, close attention, Qin Qin Qin management; third is theft.

Disposable Piercing Guide - WPTC5

A Disposable Laparoscopic Trocar is a medical device used in minimally invasive surgery to create a small incision in the abdominal wall for the insertion of surgical instruments and a camera. It consists of a sharp, pointed tip that is inserted through the skin and into the abdominal cavity, and a sleeve that provides a pathway for the surgical instruments. Once the trocar is inserted, the sleeve is locked in place and the instruments can be inserted and removed through it. Disposable laparoscopic trocars are designed for single-use only to prevent the risk of infection and cross-contamination. They are available in different sizes and shapes to accommodate various surgical procedures.

Disposable Use Puncture Guider,All Laparoscopic Instruments,Keyhole Surgery Instruments,Surgical Laparoscopic Machine

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