Breeding method of selenium-rich sea cucumbers
A sea cucumber and selenium-enriched technology, applied in fish farming, climate change adaptation, animal feed, etc., can solve problems such as unsystematic mature technology systems, and achieve the goal of increasing selenium content in the body, improving digestive enzyme activity and in vivo immune enzyme activity, Guarantee the effect of healthy and efficient farming
Inactive Publication Date: 2017-01-04
山东省海洋资源与环境研究院
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Problems solved by technology
How to use exogenous selenium to increase the selenium content in sea cucumbers to obtain healthy selenium-enriched sea cucumber products, currently there is no systematic and mature technology system
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] A kind of selenium enrichment method of sea cucumber, implementation example is as follows:
[0015] 1) Selenium-enriched yeast was purchased from Angel Yeast Co., Ltd. The actual content of total selenium was determined to be 1408.80±0.47mg / kg, of which the organic selenium content was 1141.13±0.26mg / kg, and the inorganic selenium content was 267.67±0.58mg / kg ;
[0016] 2) In the experiment, 20 sea cucumbers per group were divided into 7 groups, with 3 parallels in each group. Selenium-enriched yeast was added to the basal feed by a step-by-step amplification method, and the concentration of selenium in the feed of each group was 0 (blank control ), 0.20, 0.40, 0.80, 1.60, 3.20, 6.40mg / kg;
[0017] 3) The water temperature of the sea cucumber culture environment is 17-19°C, the dissolved oxygen is 6-8 mg / L, the pH is 7.8-8.2, and the salinity is 31.0-32.0. Absorb the feces every day, and change the water about 1 / 3~1 / 2, and change the water every two days. Feed twice...
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The invention discloses a breeding method of selenium-rich sea cucumbers. The method comprises selenium enrichment breeding and selenium accelerating breeding of the sea cucumbers and is characterized in that selenium-rich yeast with the content of organic selenium accounting for 80% or higher of the total selenium content is added to basal feed used for feeding in the selenium enrichment breeding or selenium accelerating breeding process, the selenium-rich yeast is added until the concentration of selenium reaches 0.80 mg / kg-1.0 mg / kg, and the selenium-rich yeast is a granular mixture prepared from a gelatin thickener accounting for 0.20% of the total mass and the selenium-rich yeast. The selenium-rich yeast is taken as external selenium to be added and is non-toxic, low in adsorption conversion rate and high in use safety; a gradient concentration experiment of addition concentration of the selenium-rich yeast proves that when the concentration is 0.80 mg / kg, the breeding survival rate of the sea cucumbers can be guaranteed, the digestive enzyme activity of digestive tracts of the sea cucumbers and the activity of immune enzyme in bodies of the sea cucumbers are improved, and the content of selenium in tissue of the sea cucumbers can be effectively increased; the nutritional value and the breeding benefits of the sea cucumbers are increased by means of the breeding method of the selenium-rich sea cucumbers, and the breeding method of the selenium-rich sea cucumbers has good economic benefits and broad popularization and application prospect.
Description
technical field [0001] The invention relates to a cultivation method of selenium-enriched sea cucumber, and belongs to the technical field of seawater cultivation. Background technique [0002] Selenium is one of the micronutrient elements needed by the human body. Its physiological effects can be mainly summarized as improving the body's immunity, preventing the occurrence of diseases, and detoxifying. With the continuous aging of my country's population and the increasing demand for health food, the development and research of organic selenium and its natural selenium-containing products have become a hot spot in nutrition research, such as selenium-enriched tea, selenium-enriched eggs, selenium-enriched milk etc. [0003] Marine organisms are one of the main sources of human food intake, and the development and research of marine organisms food sources has always been the focus of nutritionists. Selenium is abundant in many seafood, but its content also varies with the s...
Claims
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Patent Timeline
Login to View More IPC IPC(8): A01K61/00A23K10/18A23K50/80
CPCY02A40/81A01K61/00
Inventor 孙国华任利华杨建敏王卫军冯艳微李尚俊
Owner 山东省海洋资源与环境研究院