1, pre-cultivation. Loach fry body length less than 2 cm before, according to the water color, should be appropriate amount of fertilizer. When the water temperature is low, 2 grams of fast-acting ammonium nitrate per cubic meter of water per application; when the water temperature is high, 2.5 grams of urea per cubic meter of water.
Species every other day, 2 to 3 times in a row, and then adjust the concentration of fertilizer and the interval according to the water quality of the fertilizer, the water color to yellow-green for good, the water depth control within 30 cm, transparency control in about 20 cm. At the same time, every 200,000 seedlings with 1 kg of soybean grinding into 15 kg of soybean paste, every morning and evening to splash 1 time. After 3 to 5 days of feeding can be changed to feed water fleas, rotifers, pounded silk earthworms or silkworm pupae.
After about 10 days of cultivation, loach seedlings grow to about 1cm, has been able to ingest insect larvae in the water, branches and corners and organic debris, etc., can be fed with broken animal offal, blood meal and soybean cake. Feed once a day in the morning and once in the afternoon. At the beginning of the daily feeding amount of 2% to 5% of body weight, and later with the growth of daily feeding can be increased to 8% to 10% of body weight.
2, late cultivation. loach seedling specifications reached 2 cm, gradually deepen the water level to 50 cm. In addition to continue to fertilize the water quality, should also be fed with feed, every day, 1 time in the afternoon, the daily bait for the loach weight of 4% to 10%.
Additionally, the amount of bait should be flexible depending on the water quality, weather, feeding situation, the water temperature of 15 ℃ or more, the loach appetite with the increase in water temperature and enhancement; 25 ~ 27 ℃, appetite is particularly strong; 28 ℃ or more, the appetite gradually decline; more than 30 ℃ or less than 12 ℃, should be less feed or even stop feeding feed.
3, adjust the water quality. 1 to 2 times a week water change; diligent fertilization, to maintain the pond water color "fat, alive, tender, cool" is good.
4, pond inspection. Morning, noon and night, 1 time to patrol the pond, observe the loach activities and water color changes, found problems in a timely manner.
5, prevent disease. Clean the feed table in time, regularly do a good job of disinfecting the feed table and tools, etc., and regularly feed drugs to prevent.
6, anti-virus and anti-escape. Pay attention to prevent the invasion of hostile organisms and the escape of loaches, often check the inlet and outlet and the ridge.
Life habits
Because the loach is omnivorous fish, so no matter rice bran, or wheat, fly maggots can be fed as bait, three times a day. The amount of feeding according to the feeding situation to determine their own.
The loach feeding process, can be appropriate to supplement some organic fertilizer, but in the fertilization, must not be too much too often, and to change the pool water, 10-15 days to change the water once. To catch loaches, first of all, the pool water should be drained, take the approach of catching big and leaving small, to ensure that there is a certain number of loach seedlings in the pool, which is conducive to the succession of breeding and high yield.
With the growth of loach species, gradually deepen the water level to the depth it should be, usually shallow, hot and high temperature can be deepened a little, and often injected into the new water, to maintain a good water environment. At the end of fall and early winter, the water temperature drops to 10 ℃ ~ 15 ℃, the loach feeding reduced, you can fish.