A kind of preparation method of marine full price nutrient salt for shrimp and crab culture

A nutrient salt and ocean technology, which is applied to the field of marine full-value nutrient salt for shrimp and crab culture and its preparation, can solve the problems of prolonged shelling period of shrimp, low survival rate of shrimp, slowing down of shrimp growth, etc., so as to shorten the shelling time. Cycle and hard shell time after shelling, the effect of promoting the growth of cultured organisms, and stabilizing water color

Active Publication Date: 2016-02-17
BEIHAI ZHENGYU BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially ponds with groundwater, low-salinity water, and desalinated seawater as water sources often lack many key elements, including potassium, zinc, phosphorus, cobalt, selenium, etc. After 50 days) the growth of prawns slows down significantly, the shells are thin and soft, the shelling period of prawns is prolonged and there is a small amount of sneak death, easy to float, and the incidence rate is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Select the concentrated seawater bittern after natural evaporation of water and crystallization of sodium chloride as raw material, the sum of various nutrients contained in it is 35%; the organic impurities in the bittern-algae are filtered out with a glass fiber reinforced plastic high-pressure sand filter tank, Obtain a clear and transparent bittern liquid; heat the bittern liquid in a stainless steel jacketed pot to 130°C until it becomes a viscous liquid; pour the viscous liquid into a cement crystallization pool with a thickness of 10 cm while it is hot and let it cool naturally to Obtain massive solid nutrient salt at room temperature; grind the solid nutrient salt into 60 meshes with a pulverizer. The weight percent range of the nutrient composition of the prepared nutrient salt is detected as calcium: 1.5, magnesium: 8, potassium: 1.0, zinc: 0.1, iron: 0.4, copper: 0.01, lead: 2×10 -3 , manganese: 0.02, chromium: 5×10 -5 , Selenium 0.2×10 -6 , cobalt: 7.5×10 ...

Embodiment 2

[0021] Select the concentrated seawater bittern after natural evaporation of water and crystallization of sodium chloride as raw material, the sum of various nutrients contained in it is 40%; the organic impurities in the bittern - algae are filtered out with a glass fiber reinforced plastic high-pressure sand filter tank, Obtain a clear and transparent bittern liquid; heat the bittern liquid in a stainless steel jacketed pot to 150°C until it becomes a viscous liquid; pour the viscous liquid into a cement crystallization pool with a thickness of 10 cm while it is hot and let it cool naturally to Obtain massive solid nutrient salt at room temperature; grind the solid nutrient salt into 80 meshes with a pulverizer. The weight percent range of the nutrient composition of the prepared nutrient salt is detected as calcium: 1.8, magnesium: 9, potassium: 1.2, zinc: 0.2, iron: 0.5, copper: 0.02, lead: 2.2×10 -3 , manganese: 0.03, chromium: 5.1×10 -5 , Selenium 0.3×10 -6 , cobalt: 7...

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Abstract

The invention discloses a preparation method of sea complete nutrient salt for shrimp and crab breeding and testing standards thereof. The method includes 1, material selecting; 2, filtering; 3, evaporating, namely placing bittern liquid into a stainless steel interlayered pot and heating to 130 to 160 DEG C, boiling the bittern liquid till being sticky; 4, crystallizing, namely pouring the sticky liquid still hot into a cement crystallizing tank, cooling naturally to the room temperature, and obtaining blocky solid nutrient salt; 5, smashing, namely smashing the solid nutrient salt to 60 to 80 meshes through a smasher. The nutrient salt prepared by the method is balanced in nutrition, the range of nutrient elements required by the cultured creature growth is achieved, the requirements of the growth of the cultured creatures are met, the growth of the cultured creatures is promoted, the problems that shells are thin and sot, unshelling is difficult and time for hard shell is prolonged in the process of growth are avoided, culture quality is improved, and great economic benefit is brought to farmers.

Description

technical field [0001] The invention relates to the field of artificial aquaculture, in particular to a marine full-valent nutrient salt for shrimp and crab cultivation and a preparation method thereof. Background technique [0002] Nutrients in shrimp and crab artificial culture ponds are the basis of pond productivity. There are many types of nutrients, including magnesium, nitrogen, phosphorus, potassium, sodium, silicon, calcium, iron, carbon, and trace amounts of manganese, zinc, copper, and cobalt. , platinum, etc. The productivity of the pond is mainly determined by the nutrient content in the pond and the near sea. The higher the nutrient content, the stronger the productivity. Scientific research has proved that fish, shrimp, and crabs can not only absorb nutrients in the feed through the digestive tract, but also directly absorb calcium, phosphorus, magnesium and other macroelements and iron, copper, zinc, etc. trace elements. In ponds where there is no water ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00C02F9/10
CPCY02A40/81
Inventor 庞德彬庞兴宁
Owner BEIHAI ZHENGYU BIO TECH
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