Grass carp fry feed capable of increasing survival rate

Abstract

The invention provides a grass carp fry feed capable of increasing the survival rate. The grass carp fry feed comprises the following components in parts by weight: 5-15 parts of fish meal, 5-15 parts of freshwater shrimp meal, 5-15 parts of pork liver meal, 20-30 parts of kelp powder, 40-60 parts of bean pulp, 10-20 parts of sorghum flour, 40-60 parts of soybean meal, 20-40 parts of barley flour, 20-40 parts of cottonseed meal, 10-20 parts of rapeseed meal, 5-15 parts of bran, 5-15 parts of nereid powder, 10-20 parts of wheatshorts, 10-20 parts of lucerne meal, 20-40 parts of phospholipid, 10-20 parts of seaweed meal, 4-6 parts of medical stone powder, 10-20 parts of vegetable oil, 1-3 parts of a core additive; and every 100 parts of the core additive is prepared from the following components in parts by weight: 20-30 parts of garlic, 20-30 parts of liquorice, 10-20 parts of lentinula edodes, 10-20 parts of rhizoma acori graminei, 5-15 parts of herba houttuyniae and 5-15 parts of red flowers. The grass carp fry feed provided by the invention not only can be used for providing basic nutrient substances for grass carp fries to guarantee the growth efficiency of grass carps, but also can be used for improving the immunity of the grass carps by optimizing a feed formula and adding the core additive, is high in safety, wide in raw material source and low in price.

Description

technical field [0001] The invention belongs to the field of agriculture, in particular to a feed for grass carp fry that improves the survival rate. Background technique [0002] Grass carp (piceus) belongs to Cyprinidae and belongs to the genus Grass carp. It looks like grass carp. It is mainly distributed in the plains south of the Yangtze River in my country, and it is rare in the north of the Yangtze River. Grass carp is an important fishery resource in the middle and lower reaches of the Yangtze River and lakes along the river, as well as various lakes and ponds. The main breeding object among them is one of the "Four Major Fishes" in freshwater farming in my country, and it is also the best in meat quality and the highest price among the "Four Major Fishes". [0003] Grass carp is a carnivorous fish that mainly feeds on benthic animals, insect larvae, snails, mussels, rice shrimp, etc. in natural water bodies. For a long time, because the feed problem has not been sol...

AI Technical Summary

Problems solved by technology

[0004] At present, there are several major problems in the breeding technology of grass carp fry: First, in the environment of mostly still ponds in the green seedling culture Peiyun, high-density breeding causes a large amount of aquatic animal excrement, residual bait, disinfectants, etc. Decomposition releases a large amount of harmful substances, which increases the density of aquaculture, degrades the water environment, and aquaculture diseases are also increasing. Many diseases have seriously threatened the efficiency of aquaculture.

However, the loss of feed in water and the accumulation of excreta have become the main pollution sources of water bodies, resulting in deterioration of water quality, large-scale reproduction of pathogens, decreased survival rate, increased dosage of medicines, frequent water changes, and increased breeding costs.