Micro-ecological preparation for promoting growth of juvenile sea cucumbers and application method

Abstract

The invention relates to a micro-ecological preparation for promoting growth of juvenile sea cucumbers and an application method. The micro-ecological preparation comprises the following components with the volume ratios: 3.5-5.0 of wine brewing yeast, 1.5-3.0 of candida yeast, 0.2-1.0 of lactobacillus bulgaricus and 0.8-1.5 of lactobacillus plantarum, wherein the viable count of wine brewing yeast is more than 5*10<8> per ml; the viable count of candida yeast is more than 1*10<8> per ml; the viable count of lactobacillus bulgaricus is more than 1*10<9> per ml; the viable count of lactobacillus plantarum is more than 1*10<9> per ml. The micro-ecological preparation for promoting the growth of the juvenile sea cucumbers is prepared by mixing culture solutions of four bacteria according to the volume ratio. The application method comprises the steps of adding the micro-ecological preparation into a sea cucumber feed, adding water, mixing into paste, fermenting for 18-24 hours, mixing the paste with sea mud in a proportion of 1:1 or 1:2, and then throwing to feed the sea cucumbers. The micro-ecological preparation disclosed by the invention is characterized in that the preparation can be used for further decomposing macro-molecular substances into small molecules which can be absorbed by the juvenile sea cucumbers more easily by using the growth and metabolism of beneficial microorganisms, so that the growth of the juvenile sea cucumbers can be promoted.

Description

technical field [0001] The invention belongs to the field of aquaculture feed, relates to the field of feed additives, in particular to a microecological preparation for promoting the growth of young sea cucumbers. Background technique [0002] Sea cucumbers belong to the phylum Echinodermata, class Holothuria, family Apostichopaceae, and genus Apostichopus, and are benthic marine animals distributed in the northern part of the Western Pacific Ocean. Since the 1990s, sea cucumber aquaculture has developed rapidly and has become an important emerging industry in coastal aquaculture in northern my country, forming an aquaculture industry with northern local characteristics and a new marine economic growth point. In current sea cucumber cultivation, various algae account for 60%-80% of the feedstuffs fed. Sea cucumbers, especially juvenile sea cucumbers, have a relatively low utilization rate of algae, so their growth is relatively slow. Contents of the invention [0003] Ai...