Six strokes to increase the spawning volume of jaundice
In order to obtain better benefits, we must breed our own species of yellow peony. The breeding technology of jaundice is extremely difficult, and there are six measures to increase the spawning volume of jaundice.
1. Choose the venue: plant plants in the pond, such as rice, water, peanuts, etc., and put some stones, bricks in the bottom of the pool, to simulate the natural ecological form conducive to spawning.
2. Adjust water quality and water level: The breeding pond water must be non-toxic river water, lake water or groundwater. The PH value of the water should be 6.2 to 7.8, the water level should be 20 to 30 cm deep, and the fresh water pool should be treated with alkali solution. .
3. The stocking density should be appropriate: individuals should be moderate to new Astragalus, it is best to choose 100 to 150 grams of Astragalus for spawning and pro-spawning, at this time the proportion of male and female Astragalus is 1:3 to 4, stocking density per square meter Fang Huang Huang 10 Around the bar, too much affect the amount of eggs laid.
4. It is reasonable to feed the feed: From April to June, it is the breeding season of Astragalus mongolicus, and it is necessary to feed a higher protein feed, such as quail, etc., and at the same time, it should be used together with the full-price compound feed of Astragalus mongolicus, and the sexually mature Astragalus membranaceus should be injected with high-protein feed. After 5 to 7 days after feeding, eggs will be laid. The eggs are produced on the side of grass or stones. As long as there is white foam, it is the production of ovary.
5. Grasp the water temperature: During the spawning season of the scutellaria baicalensis, patrol the pond every morning in the pro-Huangqi Lake. If ovary with white foam is found, it should be gently moved into the hatching pond and incubated with microfluidic water. The fertilized eggs inflate to about 4 mm after inhalation. The incubation time can be 1 to 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. When the seedlings grow out of the eggs, the water temperature is 28°C for about 10 days, and the body is as long as 26 mm. The yolk sac has not completely disappeared; after 7 to 10 days, the yolk sac will be completely collected, and the plankton in the water will start to be fed in. Feed the little otters. After about 35 days, the young larvae grow to 5-6 cm, and they can be kept in feeding ponds.
6. Timely and quantitative feeding: Whether it is spawning nymphs or newly hatched seedlings, regular quantitative feeding is required. Spawning Astragalus membranaceus was fed 2 times a day, and fed one at a time around 8 o'clock in the morning and around 6 o'clock in the afternoon. The amount of each feeding was between 2% and 3% of the total weight of A. erinaceus. Seedlings are fed once every 5 to 7 pm in the afternoon, which is beneficial to the production of eggs by the parents.
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