Key points of new technology for rapid fattening

In the winter each year, the market price for scutellaria baicalensis is relatively high, especially large-sized squid is quite popular, and its sales price is as high as 70 yuan per kilogram. From May to November is the golden period of the fattening of yellow peony, choose good fattening seedlings; supply adequate and nutritious feed; do daily management work such as water quality, temperature control, feeding, disease prevention, etc., through 6 months or so For fattening, Astragalus membranaceus can be 3-5 times heavier, and herring size is generally more than 150 grams. Its market sales price is high, and the economic benefits are very significant.
First, choose the squid for artificial fattening seedlings, specifications should be slightly larger, a single bargain should be better than 30-40 grams. It is generally possible to purchase artificially propagated commercial seedlings directly or to purchase local wild squid. At present, the breeding of Scutellaria baicalensis adopts the method of "natural reproduction". Due to the particularity of Scarabaeoidea breeding, there is currently no large-scale propagation of commercially available commercial carp seedlings. The main source of fattening seedlings is the acquisition of wild carp.
The seedlings used for fattening should be purchased with cage traps, aqua-grass traps, hand-captured traps, and snap-capture seedlings. The seedlings acquired should avoid unscientific and prolonged storage of catchers, so as not to cause fever, colds, or infections of eels. After the purchased seedlings are culled, crippled, weakened, and diseased, they are put into observation tanks first. Gradually use "Cangbao 2"; "Yubaoxin 5", "Cangbaoxin 4" and multi-vitamins; "Cangbao 6" and "Cangbao 1" and other drugs to prevent and treat pests and diseases of Astragalus membranaceus To ensure healthy seedlings are used as fattening objects.
Second, fattening diet Astragalus eat less, but the higher the requirements of the protein, but also has a special preference for food, such as cockroaches, fly pupae. Extensive use of pig manure, cow dung, chicken manure and other livestock and poultry manure, adding EM bacteria agent fermentation, a large number of cultured pupae and fly pupae. The produced sterile cockroaches and fly maggots not only cater to the eating habits of the yellow cockroach, but also provide good animal feed for domesticated food, and at the same time provide inexpensive high-protein feed, which can greatly reduce the cost of fattening and increase the profit of fattening. . Other animal foods can also choose to use small fish, snails, river clams, animal organs and so on.
Fattening feedstuffs use animal feedstuffs and fish feedstuffs. Don't use a single maggot, fly maggot and other animal baits for fattening. Otherwise, the feedstuff conversion rate will be low, and the fattening cycle will increase, which will affect the fattening fruit. The compound feed uses 50%-60% of animal feed and 40%-50% of fish feed, and the amount of concentrated feed accounts for 1% of fish feed. Fish feed can be directly purchased feed such as squid material, squid material, glutinous material, or frog material with a protein content of more than 30%. Animal feed, condensate, and binders such as alfalfa are used to process soft feed or soft feed. Specific method: the fish material crushed, add minced clams and other animal food and concentrates, then add a small amount of binder and the right amount of water and mix on the machine, using a meat grinder (prepared 3-5 mm die hole, according to Huang Qi For size selection, use a soft strip of chopped sliver and let it dry for a while. Turn gently with your hand to allow the longer strip to break naturally. The small-scale oysters can be mixed in groups: the crushed fish is fed with chopped quail and other animal foods, and then the concentrate and a small amount of binder are added and a suitable amount of water is added to the mash. It is also possible to grind animal litter and add binder, concentrated feed and appropriate amount of water to prepare a paste. Then the pelleted fish feed can be directly poured to prepare a pelletized compound feed. The blended material should be ready for use and should not be used for a long time. Save. In the absence of animal feeds, limited animal feeds can be used to feed tadpoles, and fish feeds are gradually added until they are all fed to fish feed.
Feeding Astragalus to reduce labor intensity, we can first use animal feed for domestication, and then gradually add fish feed for domestication, and then can directly feed fish feed. In this way, we can first add the fish feed pellets to the concentrate feed and a small amount of binder, then pour in the appropriate amount of water, and directly sprinkle the fish feed pellets into the dipper pool. The dosage should be moderate to eat well within 10 minutes. After the granules are eaten, feed the animals such as quail or fly larvae.
Third, fattening management
1, grading rearing: the size of the seedlings to be fattened, individual differences of more than 1 times the pool should be kept to avoid eating and fighting squid, resulting in injury and individual differences in the resulting squid, affecting the fattening effect . Grading should be done first in a large basin or in a small pond with water that is similar to the observation pool water temperature, and then into the grading screen, then pour the squid and gently shake the sieve for grading, do not dry sieve. After being graded, the squid was placed at a density of 1.5 kg per square meter in the fattening Dianchi Lake, and 6-9 kg of finished squid could be produced per square meter of Dianchi Lake at the time of harvest.
2. Feed feeding: During the period of fattening, the temperature is relatively high and the feed intake of the yellow pray is large, and sufficient feed should be provided. Feeding to achieve "Four Sets" 1 Timing: Let Huang Xi to develop a good eating habits, feeding should be on time every day, usually about 1 hour before dark to feed. 2 Fixed-point: The feeding station is located near the drainage hole to facilitate observation of the eating and health status of the eel, and also to facilitate the removal of residual food so as not to pollute the water. Cage culture, every 4-5m2 area, cut off the water surface of a group of plants as a feeding point. 3) Qualitative: Feeds fed with Astragalus should be stable. Do not change feeds or change feed formulas at will, so as not to cause decreased feed intake or indigestion. 4 Quantitative: As the water temperature gradually increases, the intake of Astragalus increases gradually, and the feeding amount should gradually increase. Generally, as the water temperature gradually increases, the intake of Astragalus increases gradually and can increase to 60% of the carcass weight. 8% to meet the need for rapid growth of Astragalus. After the feed is taken, watch the pool and if the feed of Huangchao Chi has been basically finished but there are still yellow clams looking outside, they should make appropriate supplemental investment.
3. Water quality management: During the period of fattening, there is a large intake of Astragalus membranaceus, and there are many excretions. The water body is prone to pollution. Once the water quality deteriorates, some of the sewage is eaten by Astragalus membranaceus at the time of feeding, and harmful substances infiltrate into the blood of Astragalus, causing poisoning reaction to Astragalus membranaceus. , And Huang Xie will appear anti-feeding phenomenon.
When the water body is found to be less than 20-30 centimeters in transparency, or when water smells, the water should be changed in time. Each change of water should replace 1/3-1/2 of the amount of water in the Dianchi Lake. Severely polluted persons should be fully replaced. The difference between the temperature of Dianchi New Water and the original Dianchi Lake should be less than 3°C to avoid causing squid colds.
If it is found that the food intake of Astragalus membranaceus has been greatly reduced, part of the Astragalus rose to the top of the aquatic plants in the evening and was lying on the surface of the water. The water should be changed immediately, and vitamin C should be sprinkled in the entire pool. A small amount of fresh animal feed is fed at night. If the scutellaria baicalensis can feed it, it can be added to the bait in the next day with “Yubaoxin 4”. As long as it is saved in time, it can be normal in a few days.
4, appropriate temperature control: In order to ensure that the water temperature within the appropriate temperature range of the Astragalus, should choose a representative breeding pond placed thermometers, and pay attention to observation, so as to avoid the water temperature discomfort caused by the onset of jaundice or even death. When it is found that the water temperature approaches or exceeds 30°C, new water should be added immediately and the pool water should be deepened. At the same time, in order to control the temperature and water temperature in the water grass, shade nets or other shading measures can be adopted on the water grass.
5. Prevention and control of diseases and insect pests: On the basis of doing day-to-day management work, pest and disease control work should also be done well to ensure the fattening effect. During the period of fattening, the carcass was disinfected with “Cangbao No. 2” at intervals of 10 to 15 days; 3 days each month in the feed, “Cangbaoxin No. 4”, “Yubaoxin No. 5” and various vitamins were mixed; 40-50 days to feed 3 to 5 days, "Cangbao 6"; often add allicin in the feed; often add a variety of vitamins, especially continuous rainy weather, but also often added. When the weather suddenly changes, it must be mixed in the feed. If it is found that the carcass is festering with parasites such as leeches, use “Cangbao No. 1” to drive it.
Fourth, timely sales into November, the temperature gradually decreased, the water temperature dropped below 15 °C, the intake of Astragalus decreased, the growth slowed down, when the water temperature is lower than 10 °C, the Astragalus began to enter hibernation. The sales price of jaundice in winter is high, and proper insulation and protection of aquatic plants should be done before sales. If the earthworms are used for breeding, they should use the piled grass and deepen the pool water before the hibernation stops to hibernate, and then use a dip net to catch the carp in a cement pool or a cage. When the market sales price is high, they are sold for sale.

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