Duckbill fish culture, a very old fish, is famous for its duck-billed mouth. This kind of fish needs to be cultured in deep water, which requires high water quality. In addition, its food source is mainly plankton in the water, so it is very suitable for raising this kind of fish in reservoirs. To improve the culture efficiency of small reservoirs, we can consider the following aspects: (1) Introducing pond culture technology. Compared with large and medium-sized reservoirs, small reservoirs have smaller water area and shallow water level, and the conditions for intensive cage fish culture are obviously insufficient, but compared with ponds, the water area is too large. According to these characteristics, some techniques in pond culture can be introduced into reservoirs, and the effect is more remarkable.

If you really want to invest, it can be big or small. Mainly depends on what route investors want to take. If you go high-end, imitate the model of wild farming and farmhouse music. That 10 thousand mu may not be able to. The advantages of polyculture mode are diversification, high resource utilization rate, high return rate and little difficulty. Mixed freshwater fish can choose silver carp and bighead carp, which live in the middle and upper waters and feed on plankton and even feces to purify water quality. Then it is paired with grass carp, a fish that lives in the middle waters. It has eaten the larvae of aquatic insects, with crucian carp and herring at the bottom. This kind of fish likes to move underwater.

There is a small fish pond in my home, and some grass carp, silver carp and carp are raised. ? Fish, and some small fish. I just feed some grass to the fish every day. Actually, it's just grass carp. Other fish eat grass carp feces. There is running water in the fish pond, which ensures the water quality and will not cause hypoxia. Every family in our countryside will have such a fish pond, which is very satisfying. Carp is a lowland omnivorous fish, which is dizzy and vegetarian. Carp is also a low-temperature animal, and its body temperature changes with the change of water temperature, so it does not need to consume energy to keep its body temperature constant, so the total amount of bait needed is not large. In spring, summer and autumn, most of the time they swim around in the upper and middle waters for food. Silver carp likes to eat rotten food, and often feeds grass carp feces with grass carp, so there is a saying that there are three silver carp in one grass.