How to raise fish efficiently
Farming conditions The pond area is between 3 and 5 mu and the water depth is 1.5 to 2 meters. The water source is sufficient, stable, pollution-free, and the water quality is good. The pond is convenient for drainage and irrigation, and it is not leaking. The mud at the bottom of the pond is kept at a thickness of 10 cm to 15 cm. Each pond requires equipment such as aerators. Variety selection Choose new varieties with high growth rate, high yield, suitable for local farming, and strong disease resistance and resistance. Such as Miaowang Yunxiao, Xiangyun Yun grow faster. Reasonable stocking Generally, about 2000 rearing fish species per acre and about 2,500 species of summer fish are stocked. Stocking time should be as early as possible, specifications should be large and neat, winter fish species should be in 5 cm -6.5 cm, summer flowering should be as large as possible. In order to use organic debris and plankton in the pond, it can be matched with filter-feeding fish such as eel squid, with a proportion of 10% to 20%. When stocking, it is not appropriate to match the grass carp. Fertilization With the principle of "feeding concentrate feeds, supplemented by fertilization and cultivation of water quality," scientific feeding and fertilization are the principles. It is best to set up 2 bait stations per acre at a distance of 3m to 4m from the pool. Use the same frequency sound (such as the sound of the feed drum) 5 minutes before feeding to acclimate the fish, generally 5 days to 7 days. According to the water temperature, when the water temperature is below 20°C, it is fed once a day at 9am or 4pm; when the water temperature is between 20°C and 25°C, it is fed twice a day at 8am. And at 5 pm; when the water temperature is between 25°C and 30°C, it is fed 3 times a day at 8 a.m., 2 p.m. and 6 p.m.; when the water temperature is above 30° C., it is fed 1 time a day to 2 times. , selected at 9 a.m. According to pond conditions and fish species, specifications, weight, etc. determine the amount of daily feeding, feeding qualified full-priced compound feed. Aquaculture management Pay attention to clear ponds, disinfection of fingerlings, disinfection of tools and foodstuffs, timely water disinfection, and drug prevention during the epidemic season of fish diseases. Fish should be promptly diagnosed and treated when symptoms occur, and the right medicine should be prescribed. Pay attention to day and night patrol ponds and find problems in a timely manner. The implementation of fish trapping and listing, regulate the breeding density. Viral Transportation Medium Tube
Uses: used for the detection and sampling of influenza, hand, mouth, foot and other epidemic diseases
For sample collection, transportation and storage. Viral Transportation Medium Tube,Sample Collection Tubes,Transport Nasal Swab With Tube,Virus Sampling Tube Nasopharyngeal Swab Jilin Sinoscience Technology Co. LTD , https://www.jilinsinoscience.com
Inspection principle:
The combination of multiple antibiotics has broad-spectrum antibacterial and antifungal effects;
As a protein stabilizer, bovine serum albumin can increase the survival time and infection stability of the virus;
Buffers such as Hank's build a neutral environment, which helps to increase the survival time and infection stability of the virus;
Phenol red is an acid-base indicator, the discoloration area is 6.6 (yellow)~8.0 (red), and it is red at 7.2~7.4.
Steps:
1. According to the sampling requirements, use a sampling swab to collect samples.
2. Place the swab after collecting the sample into a sterile sampling tube.
3. Break the sampling swab rod that is higher than the sterile sampling tube.
4. Tighten the cap of the sterile sampling tube.
5. Label the sterile sampling tube with information as required.
Product advantages:
1. The virus discretion of the flocking swab is high to ensure the accuracy of the test results.
2. The samples are well sealed to ensure product transportation and safe storage.
3. Product instruction manual, product certificate
Product Details:
1. The product set includes a one-time Virus Sampling Tube (including preservation solution), a self-sealing bag, a sampling swab, and instructions.
2. Product specification: 100 sets/box, 8 boxes/box 3. Product weight: 0. 65kg/box, 13. 2kg/box
4. Packing size: 25. 5*23. 5*14. 5 boxes, 53*49*32/carton
Scope of application:
Work resumption testing, the best choice for large-scale population screening
Features:
1. Transport at room temperature, stably preserve viral RNA
2. Pre-packaged guanidine salt lysate can inactivate the new coronavirus, ensuring the safety of transportation and testing personnel 3. The large-capacity preservation solution can fully soak the swab head,
The sample size can be divided into three parts for testing and reserve samples respectively to meet the testing needs.
Scope of application:
Suspected cases, disease control testing, preferred by P3 laboratory