First, seedlings stocking without fertilizer manure underwater pond have several advantages: First, when the water is cultivated into tea green or yellow-green, the surface of the pool wall will be affixed with a layer of biofilm, and the seedlings will be swimming after climbing. At the same time, there will be no abrasions; the second is that certain zooplankton in the fertilizer and water body can make the seedlings free to prey to supplement the nutrient-rich active feed; thirdly, the water body has a certain degree of fatness and can control the infection of the fungus to the seedlings. The concrete method of the fertilizer pond is as follows: When the pond is cleaned and disinfected, 5 kg of fresh loess, 10 grams of urea and 10 grams of ammonium phosphate are used per cubic meter of water body. Water fertilization to green tea, transparency can be about 10 cm; first according to seedlings pond design stocking concentration in a dead end and smooth plastic basin, disinfectant disinfection with water, and then hold the seedlings evenly Sprinkle the ground into the pool, then splash some feed water around the feed plate and put feed on the feed table to attract food.
Second, raising fish should not be used to feed the eight-saturation group. When an animal eats food, an individual will never give it to other individuals as they would like to eat. However, as long as there is feed, it is necessary to eat. It is strong to eat first and weak to eat later, so the phenomenon of smaller individuals often appears in aquaculture. The so-called eight-point fullness is nothing more than subtracting 20% ​​from the original normal feeding amount. In this way, stronger and weaker people will be seldom eaten, and some may even become fragile because they cannot eat enough feed, which ultimately affects the yield and quality of the group.
Second, raising fish should not be used to feed the eight-saturation group. When an animal eats food, an individual will never give it to other individuals as they would like to eat. However, as long as there is feed, it is necessary to eat. It is strong to eat first and weak to eat later, so the phenomenon of smaller individuals often appears in aquaculture. The so-called eight-point fullness is nothing more than subtracting 20% ​​from the original normal feeding amount. In this way, stronger and weaker people will be seldom eaten, and some may even become fragile because they cannot eat enough feed, which ultimately affects the yield and quality of the group.
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