Leather beard is a tropical fish, tame temperament, benthic life, the optimum growth temperature is 25-30 °C, there are coral-like organ for assisted breathing, resistance to low oxygen, strong ability to adapt to the environment, very fast growth , is a good breeding species. First, the adult fish breeding (a) pond construction requires adequate pond water, no industrial wastewater pollution, irrigation and drainage convenience. Small ponds are better, generally 200-300 square meters to 2 acres. Land and concrete can be used, but the wall of the earthen pond must be vertically downward and it cannot have a gentle slope. The water depth is maintained at about 1 meter. In order to facilitate the exchange of water and catch fish, the bottom of the tank should be slightly inclined toward the outlet. Pool ponds should be pressed firmly and do not leak water. Some aquatic plants are planted around the pool corner to serve as a hiding spot for fish. Second, summary and discussion In the actual breeding work, pay attention to several issues: Clear Sterile Vials are primarily used for mixing different medications or solutions for injection or research applications like HCG, heparin, lidocaine, diabetic medications and morphine for intravenous or syringe injections. Some drugs may need to be diluted or mixed with sterile water or other drugs. Sterile Vials are also used for nuclear medicine, PET-CT, Liquid collection. Clear sterile vials are also used for nuclear medicine, PET-CT, Liquid collection.Clear sterile vials are produced by aluminum caps, non-latex butyl stoppers and clear SCHOTT Neutral Type I glass vials. They are approved by cGMP and FDA with internally sterile.The production process is carried out under strict Class 100 workshop. Finished vials can meet the FDA`s authorised 14-day sterility test. Clear Sterile Vials Clear Sterile Empty Vials,Clear Sterile Glass Vials,Clear Sealed Sterile Vials China Lemon Trading Co.,Ltd , https://www.sterilevial.nl
(2) The fish stocking is used for clearing ponds with lime in the first half of the month before planting, 25-50 kg/mu, 7-8 days later, the manure is applied to the pool, and the amount of 400-500 kg per mu is used to cultivate planktonic plankton, so that There is some palatability of bait after the fry.
Fry best to put 8-10 cm large-size species of fish, put 2500 or so per acre, the poor condition of the fish pond stocking density can be reduced as appropriate.
(3) Feeding and management of adult fish After the fish seedlings are fed into the pond, as the water temperature rises, the amount of feeding is gradually increased. The types of feeds that are put into use are: 1. Animal feed: such as small fish, shrimp, waste from food processing plants, cockroaches, cockroaches, snails, silkworm cocoons, cockroaches, dead pigs, dead chickens, fish meal, bone meal, fresh pig blood meal, etc. Etc. 2. Plant feed: cakes, bran, rice bran, broken rice, leftovers, etc.; 3. Ready-made artificial feed for poultry, livestock, and fish; can also be formulated with vegetable protein as the main raw protein Formulated feeds with a content of 25% or more have a formula of 70% for various types of cakes, 10% for animal-based feeds, and 20% for adhesives. Conditions can also add a small amount of trace elements and multivitamins. Should be processed into pellet feed, but also can be mixed into a group of feeding. To feed the feed to take the table, so that fixed, regular, qualitative, quantitative. Vote twice a day and more in the afternoon. The feed fed every day accounts for 8-10% of the total body weight of the fish and 15% of the season for a strong food intake. It is advisable that the feed to be fed is basically finished after 5-10 hours.
In order to reduce the cost of feed, it is possible to cultivate maggots and fish exclusively.
1. Flatland culture method for fly maggots: use fermented chicken manure, swine manure or leftovers from food factories (such as vinasse, soy sauce slag, vinegar), leftovers of slaughterhouses, etc., and mix them on the ground. Set the natural flies to lay eggs on them. In general, about 150 fly maggots can be harvested per kilogram of feed within 7 days. The key to adopting this method is to harvest the fly larvae in time. Otherwise, a large number of artificially produced flies will fly out and bring great harm to people. You can also put the material of fly maggots into the sieve, put the sieve on the container, or hung over 30 cm above the surface of the aquarium, and use the darkness and drillability of the fly maggot to drill from the sieve. Drop into the container or on the bait tray and become a bait for salmon.
2. Ditch-type ditch culture method: dig 1 or several 1 meter wide and 0.6 meter deep ditch. The length of the ditch should be based on how much it is raised. After the ditch is dug, 2 cm thick black soil is placed under the pad and 1.5 cm thick ash is added to keep the ground warm. Above the grey manure, add 1 cm thick black soil. He likes to eat microorganisms, and microorganisms multiply in rotten grass and fallen leaves. Therefore, on the second black soil, put 2-2.5 cm thick rotten grass or fallen leaves, multiply microbes, and feed oysters to make food. Every 3-4 weeks, add rotten grass and fallen leaves. After covering the ditch, you can place nearly a hundred matured species and let them breed in the ditch. Finally, on the top of the gulch, cover with a layer of black soil and a layer of grey manure. Hemorrhoids use the skin to breathe. When the skin is dry, breathing stops. Therefore, when the drought occurs, the ditch should be covered with thatch or wood; when it is too dry, water it once a day. In the coming spring, you can dig and feed salmon. The digging must be digging from one end, so that when the digging to the other end, the crickets in front of them are bred again, and the circulation is endless.
3. In the season where there are more moths, moths may also be attracted at night to enter the pool for squid competition, which can save a considerable amount of feed. Secondary insect traps can be used. This program can be 5-6 times higher than the average direct trap method. The method is as follows:
(1) The installation of black light: lift up and down two electric lights above each fish pond, and a suitable upper hanging above it to attract farther insect moths; the following one should be as low as possible to 20 cm from the surface of the pond should. Both bulbs are better with black light.
(2) How to use: When the sky is dark, open the high-altitude light, the water surface will not open. When you find that the moths around the high altitude lights form a cluster, turn on the surface lights and turn off the high lights. At this time, the high-algae moths quickly dive and gather around the surface lights. At the same time, because there are reflections of electric lights in the water, many insect moths flush in and are eaten by carp. After 1-2 hours, when there are few insects and moths in the pond, turn on the high-altitude light to induce. This repeated, very rich harvest.
(D) Disease Prevention:
The leather beard carp has a strong ability to resist disease, and it is rarely diseased. In pond culture conditions, the following diseases will occur mainly:
1. Hemorrhoids disease: There are ulcers and abscesses in muscles and tissues on the back of the diseased fish. There are pus and bacteria in the sores. The muscles near the infection site are inflamed and congested.
Therapeutic: Apply the bleaching powder with 1ppm concentration of pool water into the solution and spread it evenly throughout the pool.
2. Black body disease symptoms: fish body weight loss, body color black, pectoral fin inside a round red blood spots, head and back and snout can sometimes find villous plaques, diseased fish often vertical floating in the water. The disease occurs in the fry stage, when the feed is insufficient, the water is most likely to be infected when it is contaminated, and it can also cause a large number of deaths.
Therapy: 1 g of bleaching powder per cubic meter of water, change the water after application, and then use the medicine once more. And pay attention to feeding fresh food, keep the water fresh and avoid contamination.
3. Parasitic diseases: mainly caused by parasite trichomonads, third-generation parasites, etc. on the body surface, rays, and filaments of the fish. The disease can easily cause thinness of the fish, decrease or stop feeding, and the body color becomes darker. , often out of the pool in the spin, will soon die.
Therapy: Trichinosis can be sprayed with 0.5ppm copper sulfate plus 0.2ppm ferrous sulfate solution in the whole pool, or it can be soaked with 3% saline solution for 5 minutes or 2% saline solution for 15 minutes. Three generations of worms can use 90% of the solution of crystal trichlorfon Quanchiposa, the concentration of 0.5ppm, can also be used 10ppm concentration of potassium permanganate solution dip sick fish for half an hour, change the pool water and then into the fish pond.
(1) It is necessary to do a good job of anti-escape work, especially if the earthen pond is on a rainy day and there is a gentle slope on the wall of the pond. The leather beard owl will go upstream and escape from the pond;
(II) After a period of time after the feed, the individuals with leather beard have a big difference. They must adopt the method of “catching big and keeping small†in time and catch and sell the fish that have reached the market size (1.5 kg/over). Increase fish production throughout the pond;
(3) In the northern region, within one week after the “10.1†National Day, all the squid should be listed for sale in order to avoid freezing in the pond.