At present, it is a good season for spring fish species. Because the water temperature is low during this time, the fish's activity is weak, and transportation is not easily damaged. This can increase the viability of stocking. Therefore, the culture should always do a good job of fish species. Its main technology is as follows:

1. Thoroughly clearing the pond: drain water in the pond and allow the bottom of the pond to fully expose the sun, remove debris and excessive silt, repair the pond base and the pond dam, and clear the pond with drugs. The use of quicklime to clear the pond is effective because the quicklime not only kills pathogens, intermediate hosts and predators in the pond, but also improves soil, water quality and fertilization. 50-75 kilograms of lime per acre is used. After the water is sprayed, the whole pond is spattered. After 7 days, the drug power disappears and the fish can be released.

Second, the selection of excellent fingerlings: stocking fish of the same age, the requirements are: consistent specifications, similar weight, back flesh, bright body color, scales, non-destructive, swimming lively, strong anti-water, surface injury-free and parasites . Physiological fish species have a strong ability to resist diseases, which can reduce the incidence of diseases.

Third, the disinfection of fish: before the release of the fish species should be disinfected to prevent pathogens brought into the pond. Disinfectant bath method, usually 3% -5% saline, dipped in fish for 10-20 minutes. The method of operation: Anti-bagged fish on the edge of the pond, unfasten the bag mouth, the salt water poured into the bag shake, dip time according to the tolerance of fish species and flexible control.

Fourth, the list temperature difference: the use of plastic bags oxygenated transport of fish species, after the disinfection of the drug bath into the pond, pay attention to the temperature of the bag and the pond water temperature temperature difference, shall not exceed 3 °C, if the temperature difference is too large, should adjust the bag The temperature of the water should be close to the pool water temperature.

V. Input method: The fish should be put into the pond, and it should be selected at noon on a sunny day. At this time, the fish species will adapt quickly and have a high survival rate. Windy weather should be put in the upwind position of the pool so as not to let the wind blow to the edge of the pool. At the same time, count.

Sixth, reasonable close-knit: Breeding is always used to high-scale feeding fish species, so that the water load is too large, dissolved oxygen is too low, oxygen consumption of organic matter, and induce a variety of diseases. Therefore, the stocking scale should be determined flexibly according to the conditions of the pond, the water quality and the technical level of management.

Seventh, scientific feeding: When the pond water temperature rises to 8°C, the fish begin to feed and the food intake increases as the water temperature rises. Feeding bait mastered the principle of less, more than 1-2 times. Feeding amount generally accounts for 3%-5% of the total fish in the pond, which is 4-5 hours after feeding.

Multifunctional Dental Milling Machine is an advanced desktop Dental Milling machine, one more axis bestowed ability to shape more perfect teeth. Reliable, precise and economical , no doubt that Zirconia multifunctional CAD/CAM dental milling machine is popular among dental labs and clinics. These CAD/CAM milling systems convince by their very precise results and their reliability. No matter if it is a 4-axis system or a 5-axis system. We are certain that you will find a system in our product range to match your lab's needs.

Zirconia Milling Machine

Vhf Milling Machine,Bruxzir Milling Machine,Zirconia Milling Machine Price,Dental Cad Cam Milling Machine

Shandong Carved Intelligent Technology Group Co.,Ltd , https://www.demetdent.com