Sea mud substitute for young stichopus japonicus feeds

Abstract

The invention relates to a sea mud substitute for young stichopus japonicus feeds. The sea mud substitute comprises the following compositions in percentage by mass: 32-45% of zeolite, 7-20% of bentonite, 2-6% of shell powder, 2-5% of medical stones, 1-3% of active carbon powder, 2-5% of compound vitamins, 7-10% of natural sea mud powder, 3-6% of composite minerals and 2-5% of ceylon persimmon sawdust. The sea mud substitute disclosed by the invention is specifically prepared through simulating the habitat environment and situations under growth conditions of young stichopus japonicus on the basis of analyzing the compositions of sea mud swallowed by young stichopus japonicus under natural conditions, so that the problem that in production, high-quality sea mud is difficult to obtain and pathogenic bacteria are increased due to the application of sea mud in natural environment is solved. The sea mud substitute takes bentonite, zeolite and medical stones as matrixes, so that the sea mud substitute can provide sufficient mineral elements for the growth and ingestion of young stichopus japonicus.

Description

technical field [0001] The invention belongs to the technical field of aquaculture bait, and in particular relates to a sea mud substitute used for the feed of young sea cucumbers. Background technique [0002] In the production process of sea cucumber seedlings, individuals with a body length of about 0.5 cm are cultivated to a stage of about 3 to 5 cm, which is called young ginseng cultivation, also known as intermediate cultivation, and is generally called "preserving seedlings" in production. It is a critical stage in the whole sea cucumber breeding process. The production time at this stage is usually from the beginning of July to the end of December. If they want to survive the winter, they often need to be cultivated in April of the next year. During this period, conditions such as water temperature fluctuated greatly, and juvenile sea cucumbers faced more problems in terms of feeding and growth. This stage is also a necessary stage for the development of sea cucumb...

AI Technical Summary

Problems solved by technology

However, since the cultivation of young sea cucumbers is mostly industrialized, the amount of sea mud in natural water bodies is small, and the sanitation of sea mud obtained from natural sea areas is worrying. In addition, the quality of each batch of sea mud is uneven, resulting in the In the link of mixing and feeding sea mud, the risk is difficult to control, which restricts the development of large-scale and industrialized farming of sea cucumbers

[0003] However, up to now, there are no sea mud substitutes suitable for the growth and feeding of juvenile sea cucumbers on the market. In the process of artificial breeding, it is often necessary to collect sea mud from natural sea areas

This not only wastes a lot of manpower and material resources, but also because the situation of sea mud in natural sea areas is unclear, there is a great risk of breeding after the collected sea mud is put into aquaculture water.

Once the collected sea mud contains pathogenic bacteria, it may cause young sea cucumbers to get sick. In addition, young sea cucumbers themselves have weak resistance to external diseases. Once sick, there are more pathogenic bacteria in the water environment. , may cause the death of the whole batch of sea cucumbers

On the other hand, the quality of sea mud collected from the outside world is uneven, and it is difficult to obtain high-quality sea mud

The quality of the sea mud collected is not high, which will also affect the development and growth of young sea cucumbers and bring disadvantages to production

In addition, the introduction of external sea mud is often due to complex components and more gravel, which makes the aquaculture environment easy to become dirty, and the pH value and salinity of the aquaculture water may fluctuate greatly, which increases the difficulty of maintaining the aquaculture water environment.

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