Aquaculture substrate modifier and preparation method thereof

Abstract

The invention relates to an aquaculture substrate modifier and a preparation method thereof and belongs to the technical field of aquaculture environment regulation and control. The aquaculture substrate modifier comprises the following components of 20-80 parts of activated sludge, 0.1-3 parts of chitosan and 1-10 parts of polyaluminum ferric chloride as adsorbents, 1-8 parts of calcium chloride as a calcium preparation and 10-60 parts of an excipient as the accessory. The preparation method comprises the following steps: the activated sludge is dried until the water content is below 20 percent, and all components are uniformly mixed to form particles ranging from 0.2 to 2cm. The substrate modifier for a biological pond has the advantages that raw materials are low-priced and easily obtained, and products are convenient for use; organic matters on the bottom of the pond can be quickly decomposed, the contents of toxic matters such as ammonia nitrogen, nitrite and the like are reduced, survival conditions of aquaculture objects are remarkably improved, and the diseases are reduced.

Description

technical field [0001] The invention relates to a breeding environment bottom substrate improvement agent, in particular to a low-cost bio-type water bottom environment improvement input agent with long-lasting action time. Background technique [0002] Since the beginning of the 21st century, people have paid more and more attention to food safety, especially after the "turkey fish" incident, the requirements for the hygiene quality and safety of aquatic products have become more and more stringent. For this reason, the state has upgraded the implementation standards of veterinary drugs from local standards to national standards, and banned many insecticides and disinfectants with special effects but easy to cause cancer and poisoning, such as malachite green and mercurous nitrate. On the other hand, people's living standards are improving day by day, and the demand for aquatic products is constantly expanding. However, fishing resources are becoming increasingly exhausted,...

AI Technical Summary

Problems solved by technology

At present, there are mainly three kinds of pond bottom quality improvers: one is an adsorbent product based on zeolite powder, sodium humate, aluminum iron sulfate, polyacrylamide and other adsorbents, which can temporarily block the oxygen consumption and release of organic matter by absorbing the bottom organic matter. Toxins, but cannot really decompose and digest organic matter; the second type is a biological substrate modifier based on fungi such as Bacillus subtilis, Bacillus natto, photosynthetic bacteria, etc., which decomposes the underlying organic matter through the decomposition of biological bacteria. The disadvantages are The bottom layer is in a state of hypoxia, and the survival rate of bacillus with strong decomposition ability is not high, and it is very likely to accelerate the hypoxia at the bottom of the pond

The third type is the substrate improver based on oxygen enhancers such as sodium percarbonate and calcium peroxide. The disadvantage is that it can only temporarily relieve the anoxic state at the bottom and has a weak effect on the decomposition of organic matter.