Silver carp is a kind of filter-feeding freshwater fish, which mainly feeds on zooplankton. From fry to adult stage, zooplankton (rotifers, cladocera, copepods, etc.) are the main food. ), and it grows to more than 1.5 cm and also eats phytoplankton. It is a typical fish that feeds on plankton. In artificial breeding, silver carp also eats artificial feed such as bean cake, bran, rice bran, distiller's grains, and livestock excreta (chicken manure, cow dung, etc.). ), in which artificial particulate compound feed can also meet the feeding needs of silver carp.

1. What does silver carp eat?

1, silver carp mainly feed on zooplankton, mainly zooplankton (rotifers, cladocera, copepods, etc. ) From the fry to the adult stage, it also eats phytoplankton when it grows to more than 1.5 cm, which is a typical fish that feeds on plankton. In artificial breeding, silver carp also eats artificial feed such as bean cake, bran, rice bran, distiller's grains, livestock manure (chicken manure, cow dung, etc.). ), and prefer to eat artificial particulate compound feed.

2. Silver carp is a kind of mild filter-feeding fish, which does not compete for food and does not grab food. In the case of other fish grabbing food, it usually just looks around and won't enter the food table to grab food. Therefore, when feeding with feed, it can only be raised separately and cannot be mixed with other carnivorous fish. Adhere to the quality, timing, positioning and quantification of feeding? Four decisions? In principle, the feed should be fed according to the feeding rhythm of fish species, and the feed should not be too single. Its feeding intensity varies with seasons, and it is generally higher in April -65438+ 10 every year.

Second, how to breed silver carp

1, build a fish pond

If a large number of silver carp are cultured, a suitable fish pond must be built first. Fish ponds should be at a certain distance from the city, and the size can be determined according to the scale of farming. It is best to have a larger fish pond area, preferably 4-8 mu, and the water depth should be more than 2 meters. Moreover, organic fertilizer should be applied for culture before stocking fry to supplement nutrition for silver carp and ensure its normal growth. Organic fertilizer can be decomposed animal manure or cake fertilizer, but the fertilizer should be appropriate and the concentration should not be too large.

Step 2 stock fry

Breeding silver carp requires stocking fry, which is divided into two types: Danyang River polyculture. Polyculture refers to the polyculture of silver carp and other fish, which can maintain the environmental balance in fish ponds, and all kinds of fish can grow normally, creating higher economic benefits. Silver carp is most suitable for mixed culture with carp, silver carp and other fish.

3. Daily management

Silver carp has the habit of preying on plankton, so it is necessary to keep sufficient water and plankton in the pond during the breeding period to provide adequate food for silver carp. At the same time, it is necessary to change the pool water frequently to ensure the clean water quality. In addition, during silver carp breeding, when feeding artificially, it should be fed regularly, and the feed should not be too single. Only in this way can the utilization rate of feed be improved.

4. Overwintering management

The temperature drops obviously in late autumn and early winter. If silver carp can survive the winter safely, it will hardly eat again when the temperature drops below 10 degrees. At this time, all the silver carp in the pond will be gathered and stocked in a deep fish pond, so that the temperature will not be so cold. If there are no conditions, it is necessary to sell all the silver carp and raise them from the fry the next year.