I. Selection of good breeds of breeds The use of disease-free or recessive infections and no inbreeding of spinnaker. The first anniversary of surgery is within 6.5 cm. The body is healthy, full, high back, weight, hard shell is better. Fertility beads, small pieces of 蚌 蚌 seek the same specifications. And through the hanging training period, with a full film, white meat, film thickness and not crisp. Second, create a superior breeding environment Farms should be built in a convenient place, adequate water supply, no pollution, free access to drainage areas. Tanggu is tall and does not leak. It is better to use loamy soil with more trace elements, followed by loess and sandy soil. Aquaculture water quality requirements, PH value of 7-8, oxygen content of 3.5 mg / liter or more. In the summer and autumn, the transparency of water quality is 35-40 cm. The naked eye observes that the water quality is fat, live, tender, and cool, so that the cultured pearls grow well in a good ecological environment from beginning to end. Third, the use of excellent seed insertion technology, advanced technology, skilled, insert specifications. Using tear film, shaving method, small pieces of specifications are 3? 4, 5? 6, 7? 8 mm, small, medium and large differences. After shrinking, the small pieces are square, with no corners, the same size, uniform thickness. Insert the species and choose the back silk cover area and the outlet area. There are 6, 5, 4, 2 and 5, 5, 4 and 3 insertions in order of appearance, shape and plum shape. The first row is close to the edge film. The spacing distance is consistent or symmetrical. Patch inserted in the center of the mantle. Picking up, opening, inserting and other procedures are completed at once. The nucleus of the bead was round-shaped, and a good surgical puncture was inserted in time. Fourth, the implementation of scientific feeding and management just inserted a good surgery 蚌 wound easy bacterial infection, breeding water should be lighter, and gradually improve. Hanging depth is slightly deeper in winter and summer, it is 30-40 centimeters; slightly lighter in spring and autumn, it is 25-30 centimeters. Cultivating density advocates thin raising, mu does not exceed a thousand, round bags, box culture is better than net bag farming. The water quality requires fertilizer without being polluted, live without turbidity, and when organic fertilizers and inorganic fertilizers are applied, the quality and quality requirements should be used flexibly in consideration of the water quality requirements. Never use the harmful methods of strong cultivation and sudden fertilization. Must grasp the principle of a small number of times, pay close attention to the dynamics of weather, seasonal changes to regulate water quality. The long-term fertilization should fully consider the negative effects of water pollution itself. Therefore, the organic fertilizer must be fermented, then sterilized and then discharged. The organic fertilizer is woven in plastic woven bags and raised in the four corners or central points of the waters so that the fertility can slowly release fertigation water. Exercising quicklime at 5 to 10 kilograms per mu, once a month, can be applied to the foot of the pond and adjust the pH automatically. Regular flushing, changing water, long-term flow operation is better, but to prevent pollution into the water. Water clarity is 35-40 cm in summer and autumn, and organic oxygen consumption does not exceed 30 mg/l. Fat scars, too slow growth. Advocate healthy farming, the implementation of fish and fisheries co-cultivation, and fish to promote the ecological breeding model, practice has proved effective. Fifth, pay attention to the prevention of diseases and diseases, but it can be prevented and prevented. The main culprits are rotten detritus, rotten axe, rotten film, and enteritis. Diseases caused by some biological attacks also occur from time to time. Drugs for prevention and treatment of rickets: The internal medicine contains antibiotics, the external medicine contains chlorine dioxide, and the wound has astringent action such as potassium permanganate. Mixed with a small amount of fierce fish, such as black fish, squid, etc. can inhibit the growth of small junk fish, shrimp, is conducive to the growth of wolfberry beads.
Makeup Display Stand,Tattoo Furniture,Makeup Desk
Tattoo, Permanent Makeup Kit Co., Ltd. , http://www.cs-tattoos.com