In order to obtain good benefits for raising radix astragali, it is necessary to breed their own radix scutellariae. The breeding technology of radix scutellariae is extremely difficult. In practice, six methods for increasing the spawning volume of jaundice are summarized:
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(1) Choose the venue: plant plants in the pond, such as: lotus root, water peanuts, etc., and put some stones and bricks at the bottom of the pool to simulate the natural ecological form to facilitate spawning.
(2) Adjusting the water quality level: The breeding pond water must be non-toxic river water, lake water or groundwater. The PH value of the water should be within 6.2-7.8, the water level is 20-30 cm deep, and the fresh water pool is also To carry out dealkalization.
(3) The stocking density should be appropriate: individuals should be moderate in the new Astragalus, the best choice is 100-150 grams of Astragalus for spawning and pro-spawning, at this time the male and female ratio of Astragalus is 1:3-4, stocking density per square meter Fang Qin Huang Huang About 10 or so, too much affect the amount of eggs laid.
(4) Feeding the feed should be reasonable: During the breeding season of A. erinaceus in April-September, feeds with higher protein content, such as fish paste and wolfberry, should be fed together with the full-price compound feed of A. erinaceus, and sexually mature A. erinaceus should pass through. After high-protein diets are fed, their eggs will be laid within 5-7 days, and the eggs will be laid on the side of grass or stones. So long as there is a white foam, it is the production of the ovary.
(5) Grasp the water temperature: During the spawning season of Astragalus mongolicus, patrol the pond every morning in the pro-Huangqi Lake. If a white foamy ovary is found, it should be gently moved into the hatching pool and incubated with microfluidic water. Fertilized eggs inflate to about 4 mm after inhalation. The incubation time is 1-7 days at any time depending on the temperature of the water. When the water temperature is 25-C, it is completed in 6 days. After the seedlings hatch out, the water temperature 28~C is about 10 days, the body is up to 26 mm, the yolk sac has not completely disappeared; after 7-10 days, the yolk sac will be completely collected and start to feed plankton in the water. Feed the small leeches. After 35 days or so, the young larvae grow 555-6 cm and can be kept in feeding ponds.
(6) Timely quantitative feeding: Whether it is spawning nymphs or newly hatched seedlings, it must be given quantitatively. Spawning Astragalus membranaceus feed 2 times a day, about 8 o'clock in the morning, about 1 o'clock at 6 o'clock in the afternoon, and the amount of each feeding is 2%-3% of the total weight of A. erinaceus. Seedlings are fed once a day, and in the afternoon at 5-7 pm, feeding in this way favors the production of eggs from the nymphs. 