Selenium-enriched river crab feed

Abstract

The invention discloses selenium-enriched river crab feed which comprises young crab feed and adult crab feed according to ages of river crabs, wherein the young crab feed comprises the following components in parts by weight: 30-40 parts of fish pulp, 40-50 parts of potato powder, 20-25 parts of yolk, 20-25 parts of soybean milk, 15-20 parts of wheat flour, 5-10 parts of selenium-enriched animal sea foods, 1-5 parts of an adhesive and 20-30 parts of water; (2) the adult crab feed comprises the following components in parts by weight: 30-40 parts of soybean cakes, 40-50 parts of potato powder, 20-25 parts of fermented blood powder, 20-25 parts of bone meal, 15-20 parts of cotton seed cakes, 20-25 parts of selenium-enriched animal sea foods, 1-5 parts of an adhesive, 1-5 parts of mineral salts, 0.5-1 part of deshelling strepogenin and 20-30 parts of water. The selenium-enriched river crab feed disclosed by the invention is comprehensive in nutrition, low in cost, attractive for crabs and beneficial to growth promotion, and is capable of not only increasing the content of organic selenium in crab meat, but also remarkably improving the disease resistance of the river crabs, promoting growth of crab shells and increasing the yield of the river crabs.

Description

technical field [0001] The invention relates to the field of aquaculture, in particular to a selenium-enriched river crab feed. Background technique [0002] Selenium, whose element symbol is Se, is an essential trace element for the human body. It has biological properties such as anti-cancer, anti-oxidation (aging), improving human immunity, and antagonizing heavy metals. The lack of selenium can lead to the occurrence of Kashin-Beck disease, Keshan disease, etc. Selenium is a component of glutathione peroxidase, which can scavenge oxygen free radicals. In addition, selenium also has the effects of delaying aging, improving immunity, anti-cancer, and protecting cardiovascular. According to the data released by WHO, there are more than 40 countries in the world belonging to low-selenium or selenium-deficient areas, and 2 / 3 of China's areas are selenium-deficient areas, of which 1 / 3 are severely selenium-deficient areas. The Chinese Nutrition Society recommends a daily int...

AI Technical Summary

Problems solved by technology

Due to the high cost of feed for crab farming at present, the price of commercial crabs has dropped, and the income of crab farmers is getting lower and lower, which seriously dampens the enthusiasm for crab farming

And the feed nutrition in the prior art is not comprehensive enough, and river crab output is not high