What kind of food does silver carp eat?

Silver carp, which belongs to the cyprinid family Cyprinidae, is one of the four famous domestic fishes. In spring, summer and autumn, silver carp spend most of their time swimming and foraging in the middle and upper layers of the water, and in winter they dive into deep water to overwinter. They are distributed in major river systems across the country and are mostly mixed with grass carp and carp. Let's take a look at what kind of food silver carp eat.

What kind of food does silver carp eat?

The main results are as follows: 1. silver carp is a typical filter-feeding fish. it filters out the plankton in the water by the special structure of the gills, feeds on plankton for life, mainly eats zooplankton at the fry stage, and gradually changes to phytoplankton when it is more than 1.5 centimeters long. and like to eat grass carp feces and put chicken, cow dung, also eat soybean milk, bean dregs powder, wheat bran and rice bran, more like to eat artificial microparticle compound feed.

2. Silver carp are interested in sour food and have an appetite for bad food. Silver carp like to eat rotten food, often with grass carp to feed silver carp to eat grass carp feces, so there is a grass to raise three silver carp.

3. The diet of silver carp has obvious seasonality. In spring and autumn, in addition to plankton, a large number of spoiled baits are eaten. The lower the water level in summer, the greater the food intake, and eat less in winter.

Population distribution of silver carp

The suitable growth temperature of silver carp is the same as that of grass carp. in the growing season, silver carp is mostly fattened in tributaries and lakes, loss of appetite in low temperature season, but still feeding, and mostly concentrated in the river bed and the depths of lakes. It is widely distributed in all regions of China, and it is the most widely distributed freshwater fish in China.

Natural bait of silver carp

1. Phytoplankton: the food value of different species of phytoplankton is different, because silver carp and other fish can not digest fiber, pectin and chitin, so it is difficult to make use of most cyanobacteria, senescent green algae, gymnoalgae and so on. Can better digest and use such as Chrysophyta, Cryptophyta, diatom and part of dinoflagellate, xanthophyta, green algae, gymnoalgae, cyanobacteria and so on.

2. Zooplankton: zooplankton is a part of silver carp. Generally, fish feed on them at the juvenile stage. The main categories are protozoa, rotifers, Cladocera and copepods.

① protozoa: protozoa belong to unicellular animals, which have no differentiation of tissues and organs, but have functions such as respiration, excretion, reproduction and sensation.

② rotifers: rotifers are filter-feeding and feed on phytoplankton, protozoa, bacteria and organic detritus. They have strong adaptability and can survive in all types of waters, especially in ponds, reservoirs and river ditches where artificial fertilization is more common. Rotifers are palatable bait for all kinds of fish at juvenile stage.

③ Cladocera: commonly known as water fleas, also known as red worms, widely distributed in lakes, ponds, reservoirs and other water bodies, mainly filter on bacteria, unicellular algae and organic debris, grow and reproduce fast, high nutritional value, is the main bait of silver carp, where the number of Cladocera is large, the fish yield is generally very high.

④ copepods: small crustaceans such as Cyclops and dart fleas are called copepods, which feed on phytoplankton and are good bait.