The autumn fattening fingerlings are not only beneficial to their safe wintering, but also lay a good foundation for the growth of fish in the coming year. The fattening fish species in the fall mainly focus on the following three points: First, adjust the feed structure in order to make the fish grow fat, in the fall should increase the energy feed (such as corn flour, soybean cake, sweet potato flour, etc.) the proportion of appropriate, reduce the proportion of low-energy feed (such as bran and bran) . The specific reference feed ratio was 35% for soybean cake, 25% for rapeseed cake, 30% for corn flour, and 10% for bran. The feed is best processed into pellets. If the feed is made into pellets unconditionally, the corn flour and bran can be fermented first and then mixed with the bean cake to form a lump. ? Second, to maintain the stability of the water layer The water layer in the autumn fish seed pool requires injection to the highest water level, and the dissolved oxygen per milliliter of water is more than 6 milligrams, and the pH is between 6 to 8 to 7 to 5 . This will not only reduce the activities of fish, but also play a role in full water insulation, which is conducive to fattening fish. If the water quality is too thin, use 2.5 to 5 kg of ammonium phosphate per acre. It is worth noting that there will be several small spring days in the winter, and it is easy to burst high temperatures. At this time, the aerator should be started in time to prevent the lack of oxygen in the pool water. Third, reduce the number of feeding in the fall, with the gradual decline in temperature, the number of feedings should be reduced from routine 3 times a day to 2 times. In addition, in the early fall season, fish that are less than 10 cm in length should be intensively intensively bred to facilitate wintering in the pond. Waterproof Breathable Hydrocolloid Dressing,Hydrocolloid Dressing,Convenient Flexible Hydrocolloid Dressing,Preventing Microbes Hydrocolloid Dressing Zhende Medical Co.,Ltd , https://www.zdmedicalproduct.com