The cultivation of seedlings from the seedlings to the merchandises of the seedlings, if the survival rate and benefits are low for the extensive farming, the survival rate and the benefit must be high in order to strictly abide by the normative operating techniques. Generally after selecting the seedlings, it is necessary to ensure scientific feeding, management, and food supply techniques. First, choose a good seedling seedlings: Select seedlings seedlings: seedling seedlings must choose a healthy, disease-free without injury. Cannot use hook caught catching pups, because of the body damage, easily die. The seedlings can be larger or smaller in size, but they must not be large or small. They must be kept separately according to their size. There can be no difference. In the large-scale breeding of yellow oysters, the supply of quail seedlings is a key issue. In addition, we must pay attention to the fact that we should not only choose to be thick when it comes to pro-family breeding, and to prevent the selection of males and the lack of females. Second, feeding and management techniques: 1, feeding a good "four set": (1) qualitative: refers to the yellow quail meat feed must live, should not feed rancid food. Feeding with the word materials, but also should not be deteriorating moldy; nutrition protein and various vitamins must be guaranteed. Its main bait should be mainly animal meat, artificially allocated plant foods such as bran, rice bran, pancake and vegetables. Astragalus has a strong selectivity for bait and it is very difficult to change its food habits once it is fed for a long period of time. Therefore, in the early period of feeding, it is necessary to continuously feed and feed mixed feeds with a wide range of sources, low prices, and high meat percentages. And it requires a reasonable mix of animal and vegetable diets, so that the protein content of the food reaches 35% to 40%. (2) Quantitative: refers to the amount of bait feeding gradually increases with increasing temperature. In November of each year, the daily feeding amount is about 3% to 4% of the body weight of Astragalus. , 10 months, two times a day feeding; feeding amount of 5% -8%, 6,7,8 three months of maximum food intake, two shots a day, can be fed 8% to 10%. (3) Timing: Since the eel's habit is to feed at night, the feeding should be carried out at 16:00 to 17:00 in the initial stage of stocking. When it gradually adapts, it will be fed early, and finally it will be fed during the day, during the growing season. Every day, 1 in the afternoon. (4) Positioning: Because there should be a fixed food table in Dianchi Lake, the food table should be made of wood frame plus polyethylene mesh cloth, and the food table should be fixed at a certain position and feed should be put on it. If there is no fixed food table, choose a fixed feeding place. 2, management to do a good job of "five prevention" (1) deterioration of water quality: turtle ponds require water quality "fertile, live, tender, cool", dissolved oxygen at 2 mg / liter or more. When the water quality deteriorates seriously, the front half of the body stands upright in the water and the mouth exposes the air to breathe air. Commonly known as "hiccups." When this situation is discovered, new hydrolysis must be added in time. In order to prevent the deterioration of water quality, generally change the water every 5-7 days. In the summer high temperature, it is necessary to fish out the residual bait every day, increase the number of water changes, and change the water once in 4-5 days. The water temperature difference in the pool cannot exceed 5°C. Otherwise, jaundice caused death due to a sudden drop in temperature. The water level is higher than that in spring and autumn and it stays at 25-30 cm. (2) Protection against excessively high or low temperature: In the hot summer season, care should be taken to shade and cool down. The method is to plant some shady aquatic plants such as water hyacinths or water-lilies in the pond, or to plant shades at the poolside. Vine plants, often with new water, to lower the water temperature. When the winter meal is overwinter, pay attention to cold and warmth. When the water temperature drops below 10 li, the pool water should be drained, but a certain amount of water must be maintained, and a small amount of straw or straw bales should be covered above to keep the soil temperature above oli, so as to avoid wax body frostbite or death and ensure safe winterization. (3) Anti-yellow meal escape: Huang Hao fled. The main ways to escape are: First, continuous rain, rising pool water, escape with warm water; Second, the drainage hole to stop fish equipment damage, escape from; Third, from the pool wall, bottom cracks in the pool to escape. Therefore, always check the water level, cracks in the bottom of the tank, and the drainage holes to stop the fish equipment, and promptly repair the wall of the tank to block the route of escape of the yellow locust. (4) Disease prevention and treatment: Astragalus membranaceus is less likely to get sick in natural waters. With artificial rearing, the density is increased and diseases are more common. Commonly there are early feedings. The seedlings are caught in the transport, the body surface is injured, and they are susceptible to illness. In the middle of feeding, the water quality is deteriorated or the breeding density is too high to be susceptible to disease. The outbreaks of outbreaks and outbreaks of fleas and seedlings are parasites or parasites in farms. Therefore, when the seedlings are stocked and during the breeding process, the liquid soaking or liquid sterilizing the sprinkler body and the bait insect repellent shall take the initiative to take precautions. (5) Prevention of livestock and poultry damage: The water in the rearing pond is relatively shallow and the livestock and poultry are easy to hunt. Measures should be taken to prevent it. The three bait feed technology: The most popular food for the yellow bait is live bait. To ensure that there is enough live bait during the growing season, farmers need to adapt to local conditions. Arranging bait feeds in different seasons according to local conditions generally has the following methods: 1 The rational arrangement for breeding “mouth lice†is to provide nutritious feed for the tanks through the transformation of the food chain. In the early spring, some quail can be introduced into the amber pond, and larvae or some squid and mud larvae can be cultivated, which can ease the entanglement of the squid. The danger of death is caused by self-propagation; in addition, stockpiles are stocked at the bottom of the pond - some snails can be eaten by carcass and even swallowed. 2. The collection and breeding of earthworms is the most live bait most commonly eaten by eel. The increase in the body weight of eels is more than 60%, which depends on the eel's investment. Due to the large demand for raising eel, artificial collection is far from being possible. To meet the needs, you can use the poolside open space for artificial breeding. 3. Fishing of miscellaneous fish, shrimp snails and clams Fish and shrimp are caught in creeks, ditches, lake trout, large for sale and consumption, and small for feeding trout. Snails and locusts are widely distributed, and they can only be picked up by larvae or pupa. The caught small fish and shrimp were chopped and fed; the snails were shelled and minced or minced for supplementary feed sources. 4. Take leeches and rotifers every morning. In the small ditch or in the pond with rich organic matter, take a plankton on the 25th plankton net. After fishing, pick up some of the dirt and feed the squid. 5, fly maggot collection and breeding fly maggot can not only be collected, but also white cultivation. Such as hanging in the Dianchi pond - some pig intestines, fish intestines, carrion, let it rot, deterioration, flies bite after the oysters, fell into the pool for food. 6. Reasonable utilization of leftovers in slaughterhouses The scraps of livestock and poultry such as blood, heart and lungs and their internal organs are collected, rinsed and shredded or minced and cooked and fed. 7, the preparation of fresh soy milk contains more protein in soy milk, so feeding fresh soy milk, can alleviate the shortage of carp bait. 8. Feeding Tenebrio Tenebrio is a good feed for Astragalus mongolicus, especially young ones, and is easy to feed. It only needs wheat bran and cabbage leaves. Generally about 2 kg of wheat bran can produce 0.5 kg of fresh yellow mealworms under normal culture conditions. 9. Recycling of silkworm cocoons Silk cocoons purchased from silk reel factories are dried and thrown into the cocoon ponds. 10, Extension of fruits, vegetables, bean cakes, bread cakes, rice bran, bran, etc. Although these plant foods have no significant increase in body weight after eating, but in the case of the discordance of carp staples, it can also be used as an emergency. : Cut melons and vegetables into strips and threads. Bean cake, vegetable cake, rice bran, and bran were directly fed and the feed rate was 1% to 3%. Fourth, Huang Xi's maintenance management technology: Huang Hao in the year's sales have a larger seasonal price difference, so in the suburbs there are many Huang Qi professional breeding households. Generally from the beginning of August to buy the yellow wolfberry, to support the sale before and after the Spring Festival, support and technology also have. Otherwise, there will be a large number of death of the jaundice. The following describes the cultivating techniques: 1. Preparation before feeding (1) Sterilizing and feeding of the carcasses Generally, disinfection and disinfection are first conducted before entering the pool. See the section on disease prevention. (2) Maintenance density The nutrient density should be comprehensively considered based on the quality of the bottom soil, water quality, physical and chemical factors, and the management skills of the raiser. - The average individual's size (8-10 tails per kilogram) is 10-25 kg/m2. If it is the first time raising or lack of experience, the density of larvae should be appropriately reduced. On the contrary, it can be increased appropriately. (3) When entering a pooling method When there are a large number of fishes, you can use the day-to-day classification for multiple inputs. Put the larger individual first, wait for the large individual to enter into the soil, and then put it into the general individual, and then put it into the smaller individual. After the feeding process, the yellow locust can be caught or purchased and can be taken into the pool at any time after disinfection. When releasing, try to make the whole pool of Astragalus evenly distributed. Effectively grasp the density. 2. The management and management of the maintenance management period starts from the day when the turtle is put into the pond (usually in mid and late November) and before and after the Spring Festival. In the pre-management stage, the water temperature is between 10°C and 15°C. Do a good job in feeding, water quality, disease prevention and other aspects of management. When the water temperature drops below 10°C. Astragalus enters hibernation. When the water temperature is below 5°C, winterization management must be carried out. (1) During the pre-federal period, Huang Xie administers fresh animal feed. It is best to feed these fresh foods when they like to eat oysters, fly maggots, and pork meat. Feeding is usually done after 2-3 days. The first feeding amount was 1% to 2% of the total weight of the carp. On the following day, if the feed is basically consumed, the feed amount can be increased to 2% to 4% of the total weight. If there is more food left, the feed amount should be reduced appropriately. Feeding amount is often adjusted according to changes in water temperature. The water temperature can be high, and the water temperature should be low or low. When Huangpi has a long-term hunger, it has habits of self-neutrality. Therefore, feeding must be sufficient. In the rearing stage, fresh feed must be provided to feed the feed, and residual baits should be removed in a timely manner to add fresh water to prevent infectious diseases and prevent water damage. The feeding principle is to feed more on sunny days, less on cloudy days, and less on rainy days. Feeding should be adhered to until the astragalus completely refuses to eat so that it can effectively prevent the jaundice from falling out during feeding. (2) Overwintering management In the late autumn and early winter, when the water temperature dropped below 10°C, the yellow eel stopped feeding and began drilling 20-40 centimeters under the mud for hibernation. The overwinter protection work must be done at this time. The main method is to drain the pool water and keep it moist and clean. In the rainy days, it is necessary to do a good job of drainage and snow removal in the snow days. There should be no accumulation of water or snow in the pool. Before freezing cold comes, a layer of hay must be covered to prevent freezing. During hibernation, the Dianchi Lake is not allowed to walk around or accumulate heavy objects, so as to avoid compaction of underground tunnels, resulting in blockage of ventilation and impairing the respiration of the Astragalus. Generally, it is easy to manage and catch, instead of using deep water for winter.
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