The temperature in autumn gradually decreased, and the weather was mostly sunny. Dividing from the stage of freshwater fish farming is the late growth period of farmed fish. From the point of view of the growth characteristics of fish, this is the golden age of long-term fattening. Even though the temperature in the late autumn is relatively lower, the temperature and climate during this period are relatively stable. The weather is mainly sunny. The water temperature is stable at about 20°C for a long time, and it is still within the optimum temperature range for fish growth. The growth and metabolism of fish continue to be relatively strong. The momentum. The demand for feed for fish is still large, and the requirement for feed quality is also high, so the conversion efficiency of feed nutrients is also relatively high. For this reason, it is very important to grasp the post-management of farmed fish during this period of time.
Cast enough to cast good material, so that the fish eat well eaten. The bait rate is calculated as 4%, since eating fish production generally accounts for more than 70% of fish production in ponds. By feeding concentrated feeds, the speed of fish growth can be accelerated, allowing fish to store enough energy to overwinter.
Do a good job in the rear-raising management of grass carp, carp, and carp. It is necessary to ensure the source of green feed for grass carp and carp to meet the needs of grass carp and carp for green feed. Widening the source of green feed can reduce the pressure on the concentrate feed, reduce the cost of breeding, and increase the yield and income of herbivorous fish. If the green feed is insufficient, it can be supplemented with concentrate feed. Grass carp and carp are raised, and they can promote the growth of carp and carp. The feeds for squid and squid should be high quality feeds with high crude protein content and crude fat content. Feeding grass should be done before the feeding methods to allow grass carp and squid to eat, eat enough, and eat good fodder before casting concentrates.
Increase fertilizing materials to ensure that carp and carp increase weight. Eel and squid production often account for about 30% of total production. Through fertilization, the reproduction of plankton can be promoted, providing a staple food for salmon and squid and increasing their yield. In the later period of cultivation, nitrogen fertilizer is often excessive and phosphorus fertilizer is insufficient. Phosphate fertilizer should be added appropriately, and the effect can be obtained with half the effort.
Appropriate fishing, balanced market, reduce the pond load. In the later stage of growth, the individuals of fish are large, and they will be properly arrested and listed according to the market conditions, which can ease the difficulties in capital turnover. Fishing should abide by the principle of “catching large amounts and keeping small and keeping a balanced marketâ€.
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