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Selenium-enriched kelp feed and application thereof to culture of selenium-enriched abalone

A kelp and selenium-enriched technology, which is applied in the field of nutritional immunology, can solve the problems of influence, anti-oxidative immunity of selenium-enriched abalone, and the like, and achieves the effects of no environmental pollution, considerable economic effect, and simple and convenient use method.

Active Publication Date: 2012-07-25
李万玉 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a word, the above reports all use inorganic selenium-sodium selenite as the selenium source nutrient, and the impact of using nano-selenium as a kelp feed additive to study the production of selenium-enriched abalone and antioxidant immunity has not been seen.

Method used

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  • Selenium-enriched kelp feed and application thereof to culture of selenium-enriched abalone
  • Selenium-enriched kelp feed and application thereof to culture of selenium-enriched abalone
  • Selenium-enriched kelp feed and application thereof to culture of selenium-enriched abalone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Take 15.0 mL of red liquid nano-selenium (calculated to contain 7.5 mg of nano-selenium), each in three portions. Add 485, 985 and 1485 mL of water to dilute respectively, and mix well. The concentrations of nano-selenium in these three nano-selenium dilutions are 0.015 mg / mL, 0.0075 mg / mL, and 0.0050 mg / mL, respectively. In addition, three parts of 15kg strip kelp were weighed, and all three kinds of dilutions were sprayed evenly on the strip kelp with mist respectively, and placed to dry for 1-2 days, and three kinds of (selenium: kelp=0.50mg / kg ) Selenium-enriched strip kelp feed. According to the above-mentioned breeding environment, they were respectively added in the breeding ponds and cultured for 120 days. The results are shown in Table 1.

[0052] As shown in the table: when the amount of dilution with water is 985mL (group a-2), the maximum selenium content of selenium-enriched commercial abalone is 0.224mg / kg, and the SOD activity and GPX activity in the bod...

Embodiment 2

[0057] Take three 30.0mL red liquid nano-selenium (calculation shows that the nano-selenium content is 15mg). Add water 470, 970 and 1470mL to dilute respectively, mix uniformly, the concentration of nano-selenium in these three kinds of nano-selenium dilutions is respectively the solution of 0.030mg / mL, 0.015mg / mL, 0.010mg / mL, other operations are the same as embodiment 1, Just make three kinds (selenium: kelp=1.00mg / kg) selenium-enriched strip kelp feed. After 120 days of breeding in the breeding pond, the results are shown in Table 2.

[0058] As shown in the table: when adding water to dilute 970mL (group b-1), the maximum selenium content of selenium-enriched commercial abalone is 0.365mg / kg, and the SOD activity and GPX activity in the body are the highest, reflecting the strong antioxidant immunity. The characteristic values ​​are also the highest, higher than the other three groups.

[0059] Compared with Example 1 (group a-2), the selenium content, survival rate and...

Embodiment 3

[0063] Take three portions of 45.0mL red liquid nano selenium each. Add water 455, 955 and 1455mL to dilute respectively, mix uniformly, the concentration of nano-selenium in these three kinds of nano-selenium dilutions is respectively 0.045mg / mL, 0.0225mg / mL, 0.015mg / mL solution, other operations are the same as embodiment 1, Just make three kinds of (selenium: kelp=1.50mg / kg) selenium-enriched strip kelp feed. After 120 days of cultivation in the breeding pond, the results are shown in Table 3.

[0064] As shown in the table: when adding water dilution amount 955mL (group c-2), the maximum selenium content of selenium-enriched commercial abalone is 0.510mg / kg, which is 39.7% higher than the selenium content of Example 2 (group b-2), but Survival rate and weight gain rate are slightly lower than embodiment 2. It shows that although the selenium dosage increases, the selenium content of abalone increases accordingly, but the SOD activity and GPX activity in the body no longe...

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Abstract

The invention discloses a method for using nano-selenium contained kelp feed to culture selenium-enriched abalone, which includes: adding 440-1485ml of water to evenly dilute 0.50mg / ml red nano-selenium solution with particle size of 100-140nm, spraying the mixed liquor to kelp feed, and culturing for 120-180 days, wherein 0.50-2.0mg of nano-selenium is added per kilogram of the kelp feed, and shell length, weight, SOD (superoxide dismutase), GPX (glutathione peroxidase), survival rate and weight gain rate of the commercial selenium-enriched abalone are all increased evidently as compared with those of a control group. In addition, by comparative test for parameters such as nano-selenium dosage, diluted concentration, shape of kelp feed, culture duration and the like, a best method for culturing the commercial selenium-enriched abalone is further determined. The method is also applicable to production of selenium-enriched sea cucumber, fishes and shrimps.

Description

technical field [0001] The invention belongs to the technical field of nutritional immunology, relates to the application of nano-trace elements in aquaculture production, in particular to a kelp feed containing nano-selenium and a method for cultivating selenium-enriched abalone using it Background technique [0002] Selenium is an essential trace element in human and animal life. It has many important functions in ensuring human health, including immune regulation, anti-fatigue, anti-oxidation, and anti-aging. Low immune and antioxidant function is an important cause of many chronic diseases (hypertension, coronary heart disease, diabetes, cancer). Scientific supplementation of selenium is beneficial to prevent the occurrence of the above-mentioned diseases, and can also help the body resist acute infectious diseases, such as influenza. To play these roles of selenium, the "Reference Intake of Dietary Nutrition for Chinese Residents" points out that the intake of selenium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/18A23K1/175A23K1/14A01K61/00
CPCY02A40/81
Inventor 吴敦虎田福平吴敦富
Owner 李万玉
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