Bait with enzymolysis being needed before use for shellfish

Abstract

A composite feed for culturing shellfish features that is must be enzymolyzed before it is applied. It is prepared from protein feed, energy feed, minerals, vitamins, enzyme and antiseptic agent proportionally. Such steps must be taken before its application as mixing it with water, stirring, laying aside for several days while stirring several times per day, and diluting with water.

Description

technical field [0001] The invention relates to a shellfish feed, in particular, the invention relates to a new shellfish compound feed and its use method and application. More specifically, the present invention relates to conforming to the nutritional characteristics of filter-feeding shellfish, by enzymolyzing protein and carbohydrates in protein feed and energy feed, making them into soluble small molecular substances, and supplementing minerals, vitamins and other nutritional ingredients , making it an active bait that is rich in nutrition and can be quickly absorbed by filter-feeding shellfish, promotes the rapid growth of shellfish, and at the same time, promotes the growth of single-cell algae in water, enriches shellfish bait, and significantly reduces the pollution of feed feeding to the breeding environment. A new feed to ensure the healthy growth of shellfish. Background technique [0002] In recent years, due to the expansion of the area of ​​enclosure aquacult...

AI Technical Summary

Problems solved by technology

[0002] In recent years, due to the expansion of the area of ​​enclosure aquaculture in my country year by year, the benefit of coastal prawn aquaculture has declined, and the enclosure aquaculture shellfish has been developed on a large scale, especially the high density of shellfish such as clams, clams, meretrix meretrix, mussels, scallops and oysters. Intensive farming, the traditional method of using natural zooplankton and unicellular algae in seawater as basic bait can no longer meet the normal growth needs of shellfish. In order to promote the growth of shellfish, coastal farmers in my country use low-value fish and shrimp that have been minced or Without any treatment, it is directly put into the shellfish breeding coating. In the case of polyculture of prawns, the excrement of the shrimp body becomes the shellfish bait. Fertilizer and water, promote the growth of single-cell algae, enrich shellfish bait

This kind of breeding method can cause the fish and shrimp feed to not be degraded quickly when it is monocultured, and it is absorbed and utilized by shellfish, which will easily cause the coating to become black and aging, and harmful microorganisms will multiply. At the same time, harmful substances such as hydrogen sulfide will be produced due to the corruption of fish and shrimp. Lead to hypoxia, decreased disease resistance, and even mass death of shellfish; when the water temperature is low, this farming method can neither achieve the purpose of promoting the growth of single-celled algae and shellfish, but also pollute the environment

[0003] In tidal flat shellfish farming in my country, fermented livestock and poultry manure, fermented plant protein (such as bean cake) products, and chemical fertilizers are still used to splash on the tidal flat (water surface) to improve the growth of shellfish by cultivating single-celled algae. However, this type of bait is nutritious The composition is extremely unbalanced, and the ability to cultivate benthic algae suitable for shellfish growth is limited, and it is easily absorbed by large algae such as green mud moss and water net algae, failing to achieve the purpose of accelerating shellfish growth

Moreover, it is easy to cause water pollution, coating aging, shellfish disease and even large-scale death due to lack of nutrition, which brings great losses to operators.