Feed for improving resistance of red swamp crayfish and preparation method thereof

Abstract

The present invention provides a feed for improving resistance of red swamp crayfish and a preparation method thereof, and belongs to the field of feeds. The feed comprises component 1, component 2 and component 3; the component 1 comprises the following raw materials in parts by weight: fish meal, fermented soybean meal, corn flour, yeast powder, dried distiller's grains, organic vegetable powder, methionine selenium, spirulina platensis powder, pine needle powder, multivitamins and compound minerals; the component 2 comprises the following raw materials in parts by weight: shell powder, silkworm chrysalis meal, earthworm powder and margarya melanioides powder; and the component 3 comprises the following raw materials in parts by weight: membranous milk vetch root, cyrtomium rhizome, sessile stemona root, zedoray rhizome, dried tangerine peels, heartleaf houttuynia herb, pilose asiabell root, common andrographis herb, raw tobacco leaves, humifuse euphorbia herb, chinaberry seeds, burdock, haws, wild chrysanthemum, cloves and purple perilla. The feed is rich in the raw materials, balanced in nutrition, in line with nutritional needs of growth of the red swamp crayfish and high in absorption and utilization rate, enhances immunity, reduces disease occurrence, promotes growth and development, and increases yield.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a feed for improving the resistance of crayfish and a preparation method thereof. Background technique [0002] Crayfish are also called Procambarus clarkii, red crayfish and freshwater crayfish. It is shaped like a shrimp and has a hard shell. The adult is about 5.6-11.9 cm long, dark red, the carapace part is nearly black, and there is a wedge-shaped stripe on the back of the abdomen. The juvenile body is uniform gray, sometimes with black ripples. It is a freshwater economical shrimp, which is widely welcomed by people because of its delicious meat. Because of its omnivorous nature, fast growth rate and strong adaptability, it forms an absolute competitive advantage in the local ecological environment. [0003] The protein content in crayfish is very high, and the meat is soft and easy to digest. It is an excellent food for people who are weak and need to take care of ...

AI Technical Summary

Problems solved by technology

It causes destructive harm to the ecological competitive advantage of local species. At the same time, due to environmental pollution, especially heavy metal pollution, it poses a threat to aquaculture. In the process of culturing crayfish, the heavy metal content in crayfish accumulates too high , and during the growth process, black gill disease, rotten tail disease, and polycythiasis are very prone to occur, which not only greatly affects the meat quality and taste of crayfish, but also greatly slows down the growth of crayfish and increases the mortality rate.