Feeding with a compound feed, Astragalus membranaceus, and loach grow rapidly, the efficiency of raising loach in the astragalus cultivation pond is high, and its high-yielding culture techniques are as follows:
1. Set up astragalus and loach culture ponds. For breeding ponds with yellow trout and mud, we must choose places where they can shelter from the sun, have a quiet environment, and have convenient water sources. Cement ponds and earthen ponds can be used, and cages can also be used in reservoirs, ponds, gutters, and rivers. Area is generally 20--100?, too big to manage. If cement ponds are used to cultivate yellow pods and loach, debasing treatment must be carried out before releasing the seedlings. If using earthen ponds to cultivate yellow pods and loach, it is required that the soil is hard and the bottom of the pond be tamped. The shape of the rearing pond is determined by the topography. The square is round and the pool depth is 0.7 to 1m. Whether it is a cement pond or an earth pond, it must be filled with a mud layer at the bottom of the pond to a thickness of 30 to contain the organic matter. More fertilizer is better, and it is beneficial for the scutellaria and loach to dig caves. When building the pool, pay attention to the installation of the inlet, overflow bar nets, to prevent jaundice and loach escape. About 10 days before planting, thoroughly disinfect with lime, and drain the pool water for 3-4 days before releasing, and inject fresh water.
2, choose a good yellow seedlings, loach seedlings. The success of breeding yellow trout and loach, seedlings is the key. The seedlings of Astragalus are best cultivated artificially by domesticated deep yellow or large golden spotted nymphs, and can not use variegated seedlings or domesticated seedlings. The seedling size of S. japonicum is suitable for 50-80 tails per kilogram. It is too small for feeding and the survival rate is also low. The stocking density is generally suitable for 1-1.5? per square meter seedlings. After 20 days of stocking, the Astragalus membranaceus is to be fed at a ratio of 1:10. The best survival rate for the loach is artificially cultivated.
3, feeding compound feed. First, install the feed table. The feed table will be made of wood or plastic. The area will be set according to the size of the pond, which is lower than the surface of the water. The first three days after the release of Astragalus seedlings, do not feed, let the Astragalus adapted to the environment, and feed the feed from the fourth day. It is best to feed the feed at around 7:00 pm every day. At this time, the feed intake of Scutellaria baicalensis is the highest. Artificial rearing of jaundice is mainly based on feed, and some pupa, locust, and mealworm are properly fed. Artificially domesticated yellow quail, compound feed and earthworms are their favorite feeds. Formulated feeds can also be self-aligned, formulated as: fishmeal 21â„2, cakes 1919, energy feed 37?, 蚯蚓12?, minerals 1?, yeast 5?, multivitamin 2?, binder 3?. The artificially cultivated dark yellow large-brown seedlings were fed with compound feed, and the feed amount was 3?-5-5 according to the weight of the jaundice, and they were fed 1-2 times per day (depending on the weather and water temperature). Quantitative principles, feeding 20g of Scutellaria baicalensis can grow to 200-300g a year, high breeding efficiency. Mudworms mainly feed on the excrement of jaundice and the uneaten scutellaria feed in ponds. Loach naturally breeds quickly. When the ratio of pond loach is greater than 1:10, bran can be fed once a day.
4, feeding and management of jaundice, loach. From April to November in the growing season, from May to September in the peak season, the management during this period needs to be “deep†and “fineâ€, that is, diligent patrol pool and ground management, and find that the problem is solved quickly. Observe carefully the growth status of the jaundice and mud in the pond so that appropriate measures can be taken in time. The habit of jaundice and loach is nocturnal. Keep the water quality of the pool fresh and the PH value between 6.5-7.5. The water level is suitable.
5, rickets to prevent the main. Once the onset of jaundice, the treatment effect is often unsatisfactory. Must be disease-free, disease-prevented, and anti-pregnant. Can not rely on the saying that "Huang Biao is not sick". Always spill the entire pool with 1-2ppm bleach and regularly use copper sulphate drugs to prevent disease. Raising the loach in the astragalus culture pond can also reduce the jaundice disease. Because the loach is in the culture pond, they like to move up and down, and also eat the debris in the water body, which can play a role in purifying water and increasing oxygen.
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