Cage culture jaundice technology experience
With the adjustment of aquaculture structure, the breeding of yellow eels has been increasingly recognized by the farmers. Gao Yangshui of Fanji Town will transform the abandoned ponds after the house to build cages to raise the eel, and he can earn money without going out to work. Double income from going out to work can also be planted in their own farmland. In 2009, he produced 100 cages of nearly 900 square meters of cages for the cultivation of astragalus and the acquisition of astragalus japonica. The method of collecting seasonal differences in prices has yielded very good results and experience. In early November, the cages were all arrested. Listed (500 grams or so 400 kilograms, 250 grams or so 700 kilograms, 200 grams or so 900 kilograms) a production value of 80,000 yuan, net profit of 40,000 yuan. The technical points are as follows:
1, aquaculture preparation: in the river with cages to raise astragalus cage surface is generally 20-100 square, too large should not be managed, put Astragalus seedlings before about 10 days with lime or bleaching powder thoroughly disinfected.
2. Selection of seedlings: Choose the seedlings of Astragalus species, and whether the cultivation of Astragalus is successful or not, and seedlings are the key. The seedlings of Astragalus are best cultivated artificially and passed through domesticated deep yellow or large golden spotted catfish. These species have fast growth and strong resistance to disease. They cannot use variegated seedlings and have not been domesticated. The size of seedlings of Astragalus membranaceus is suitable for 50-80 tails per kilogram. It is too small to feed properly, and the survival rate is also low. It is better to keep them separately and prevent them from killing each other when there is insufficient feed. The stocking density is generally 1-1.5 kilograms per square metre.
3. Feed the feed: After the seedlings of Astragalus are put into cages, don't feed the feed for the first 3 days, let the astragalus adapt to the environment, domesticate from the 4th day, feed the feed, and feed the feed at around 7:00 pm every day. The box-feeding astragalus feed is based on a special feed for Astragalus membranaceus, but in order to reduce the cost, some broken snails, cockroaches, and mealworms may be fed.
4. Breeding management: The growth season of Astragalus is from April to October. The peak season is from May to September. The management during this period is to be “difficult†and “fineâ€. It is strictly observed and carefully observed the eating status of the aphid, growth status, and net. There are no holes in the box so that appropriate measures can be taken in time. The habit of Huangqi is to stay awake overnight, keep the pool water fresh, and the water level is appropriate. In the cage, it is necessary to remove the water peanuts or water lotus, and the summer sunshade is also convenient to escape the enemy and breeding habits. interest.
5, pay attention to the prevention and treatment of jaundice disease, jaundice, once the general treatment effect of the disease is not ideal, must be disease-free prevention, disease early treatment, should always use drifting powder, copper sulfate and other drugs to prevent disease.
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