Efficient feed capable of improving growth rate and non-specificity immunity of penaeus vannamei boone and preparation method

Abstract

The invention belongs to the field of aquatic product fermented feeds and particularly discloses an efficient feed capable of promoting the growth rate and non-specificity immunity of penaeus vannamei boone. The efficient feed is characterized by being prepared from the following components in parts by weight: malt powder, spiral seaweed powder, fermented soybean meal, clam powder, probiotics freeze-dried powder, xylanase, cellulase, glucoamylase, beta-amylase, loofah sponge, active yeast powder, activated zeolite modified low-glue kelp powder and the like. The columnar compact fermented pellet feed which has a spiral groove on the surface is prepared by fermenting main materials including the malt powder and the like with nutrient substances; the main materials are matched with the nutrient substances so that nutrients are comprehensive; the fermentation is carried out by two phases; in the second phase, the fermentation time is prolonged by an added compound enzyme and a slow-release yeast compound block mass; fermented nutritional ingredients are enriched and the growth of the penaeus vannamei boone is promoted; and compound enzyme residual components can further improve the non-specificity immunity of the penaeus vannamei boone and the efficient cultivation of the penaeus vannamei boone can be commonly promoted.

Description

technical field [0001] The invention belongs to the field of Penaeus vannamei feed, and in particular relates to a high-efficiency feed capable of improving the growth rate and non-specific immunity of Penaeus vannamei and a preparation method. Background technique [0002] Penaeus vannamei (Penaeus vannamei), scientific name Litopenaeus vannamei, is one of the three largest species of farmed shrimp in the world. Penaeus vannamei was originally distributed in Central and South America, and the waters along the Pacific Ocean. my country introduced it from the United States in 1988 and succeeded in artificial batch breeding in 1994. The meat of Penaeus vannamei is fresh and tender, with a meat yield of over 65%. It is rich in nutrition, fast in growth, wide in salt range (0-40‰), high temperature resistant, and strong in disease resistance. Variety. In recent years, the cultivation of Penaeus vannamei in my country has made some progress whether in seawater, low-salinity sea...

AI Technical Summary

Problems solved by technology

Second, in the process of large-scale intensive farming, Penaeus vannamei is in a state of stress, resulting in low immunity. It is necessary to reduce stress and improve immunity through feed, rather than spraying drugs on the cultured water to prevent the occurrence of some common diseases.

Fifth, the requirement for prawn feed is green and environmentally friendly, and it cannot pollute the breeding water body, nor can there be drug residues in the body of Penaeus vannamei, causing food safety problems