A kind of biologically active calcium and its preparation method and application

A technology of bioactive calcium and stock solution, applied in the fields of application, animal feed, animal feed, etc., can solve the problems of few invention patents of bioactive calcium preparations, prevent soft shells and difficulty in shelling, eliminate calcium deficiency symptoms, and have wide application foreground effect

Inactive Publication Date: 2018-10-23
HOHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, some domestic invention patents have been obtained for the technology of alleviating the symptoms of calcium deficiency in crabs, but there are few invention patents for the preparation of related bioactive calcium preparations using microbial fermentation technology

Method used

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  • A kind of biologically active calcium and its preparation method and application
  • A kind of biologically active calcium and its preparation method and application

Examples

Experimental program
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Embodiment 1

[0018] Below in conjunction with 6 examples the present invention is described in detail, but the present invention is not limited to the given embodiment.

[0019]

[0020] In the embodiment, first mix the EM stock solution, brown sugar and rice washing water, then add 10% lime milk suspension to the mixed solution, and put it into a rotary mixer with a speed of 120r / min~180r / min under airtight conditions. Shaking table anaerobic fermentation for 3-5 days, standing and filtering, and concentrating the filtrate. Measured by the method provided by the NY / T789-2004 (compound microbial fertilizer) standard, the pH of the concentrated solution of biologically active calcium prepared by each example is 7.0 to 7.5, and the effective number of viable bacteria (CFU) is greater than 100 million / ml. Active calcium Content 0.5% ~ 1.0%.

[0021] During the EM fermentation process, the role of brown sugar and rice washing water was to provide C source and energy for the rejuvenation an...

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Abstract

The invention discloses bioactive calcium, which is prepared from the following components in parts by weight: 3-5 parts of original EM, 2-5 parts of brown sugar, 5-10 parts of lime milk suspension and 80-90 parts of rice-washing water. The invention further discloses a preparation method of the bioactive calcium, and further discloses an application of the bioactive calcium in the aspect of crab breeding. The bioactive calcium has the advantages that the fermented calcium is in a chelating (complexing) state or an anion-cation balance state, is dissolved into water, is easily absorbed and utilized by crabs when splashed into a crab breeding pond and can play roles in effectively replenishing calcium nutrients, purifying water and regulating pH of aquatic water.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a bioactive calcium used for crab breeding, a preparation method and application thereof. Background technique [0002] Calcium is an important nutrient element necessary for the growth of crabs. Crabs molt more than 10 times in their life. Calcium deficiency will cause difficulty in moulting or soft shells, which will have a great impact on yield and quality. The water quality of large-scale crab farming is generally poor due to high breeding density and a large amount of bait. The calcium agents currently used in crab farming are mainly quicklime and superphosphate, which have the disadvantages of being insoluble in water or easily precipitated or passivated in the culture environment, and are not easily absorbed and utilized by crabs; although chelated or complexed calcium preparations are soluble Water, but the price is very high, it is difficult to populariz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K50/80A23K10/12A23K20/163A23K20/24A23K10/30A01K61/59
CPCY02A40/81
Inventor 邵雅璐吕垚毛俊祺闫昊晨马婧邵孝侯陈立华吴七斤
Owner HOHAI UNIV
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