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Selenium-rich sturgeon feed as well as preparation method and application thereof

A feed and sturgeon technology, applied in the field of aquaculture, can solve the problems of increasing the cost of sturgeon breeding, restricting the breeding industry of sturgeon, and the late development, etc., to achieve the goal of enhancing non-specific immune function, promoting fish feeding, and ensuring growth performance Effect

Inactive Publication Date: 2017-09-19
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the development of the sturgeon feed industry in China is relatively late. In the past, eel feed was usually used to breed sturgeon. Although with the development of the sturgeon feed industry, there are already various professional sturgeon feeds. However, due to domestic sturgeon feed The industry is relatively backward, and nearly 60% of our country's sturgeon feed still relies on imports, which undoubtedly increases the cost of sturgeon farming and restricts the development of the sturgeon farming industry. It is imperative to vigorously develop the sturgeon feed industry

Method used

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  • Selenium-rich sturgeon feed as well as preparation method and application thereof
  • Selenium-rich sturgeon feed as well as preparation method and application thereof
  • Selenium-rich sturgeon feed as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] A selenium-enriched sturgeon feed (feed 1), including:

[0066] Peruvian fish meal 341.5g

[0067] Krill powder 70g

[0068] Chicken powder 186g

[0069] Soybean meal 130g

[0070] Soy protein isolate 71g

[0071] Gluten 40g

[0072] Pregelatinized starch 40g

[0073] Squid oil 55g

[0074] Soy Lecithin 5g

[0075] Betaine 5g

[0076] Choline chloride 2.5g

[0077] Mineral premix 50g

[0078] Vitamin premix 4g

[0079] Selenium 2mg.

[0080] Each 1000g mineral premix includes: 149.48g magnesium sulfate heptahydrate, dipotassium hydrogen phosphate 320g, calcium dihydrogen phosphate monohydrate 353.20g sodium chloride 100g, potassium iodide 0.078g, copper sulfate pentahydrate 0.24g, manganese sulfate monohydrate 0.8g, zinc sulfate monohydrate 11.24g, cobalt chloride hexahydrate 1.6g, aluminum chloride hexahydrate 0.3g, ferrous sulfate heptahydrate 20g; the rest are auxiliary materials;

[0081] Each 1000g vitamin premix includes: Vitamin A 1.125g, Vitamin B1 12.5g, Vitamin B2 50g, Vitamin B3...

Embodiment 2

[0127] Application of a selenium-enriched sturgeon feed in the breeding of selenium-enriched sturgeon:

[0128] In this example, the three kinds of feeds obtained in Example 1 were used as experimental feeds to conduct a breeding experiment. Before the start of the experiment, the dry matter, crude protein, crude fat, ash and total selenium content of the feed were determined. The determination results are shown in Table 2:

[0129] Table 2 Approximate composition and total selenium content of experimental feed

[0130]

[0131] Before the start of the experiment, 270 sturgeons with an average weight of 144.87±26.45g were randomly placed into 9-port circular plastic tanks (1000L), and the 9-port tanks were randomly divided into 3 groups. All fish were starved for 24 hours and weighed one by one. After the start of the experiment, the three groups of fish were fed with four kinds of experimental feeds twice a day (9:00 and 16:00), and the food intake was recorded in detail. The water...

Embodiment 3

[0151] Application of a selenium-enriched sturgeon feed in the breeding of selenium-enriched sturgeon:

[0152] In this example, the feed 2 obtained in Example 1 and a commercial sturgeon feed were used for a one-month comparative breeding experiment.

[0153] Before the start of the experiment, 600 sturgeons with an average weight of 8.83±0.03g were randomly placed in a 6-port circular plastic tank (1000L), and the 6-port tank was randomly divided into 2 groups. All fish were starved for 24 hours and weighed one by one. After the start of the experiment, the two groups of fish were fed with a commercial commercial feed and the feed 2 prepared in Example 1 each day, three times a day (7:00, 12:30 and 18:00). The food intake is recorded in detail, the water temperature is controlled at 16-17℃, and the dissolved oxygen is 8.0±0.5mg / L. After 30 days of breeding, stop eating for 24 hours, and weigh each piece to measure the body length. In addition, 5 fish were randomly taken from ea...

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Abstract

The invention relates to the field of aquatic feed, in particular to selenium-rich sturgeon feed as well as a preparation method and an application thereof. The selenium-rich sturgeon feed is prepared from Peru fish meal, krill meal, chicken meal, soybean meal, soybean isolate protein, vital gluten, pregelatinized starch, squid oil, soybean lecithin, betaine, choline chloride, mineral premix, vitamin premix and selenium yeast. The total content of selenium in the feed is 2.42-6.74 mg / kg, after 70 days of feeding, the total content (wet weight) of selenium in muscles of sturgeon can reach 1.63-1.87 mg / kg, and the total content (wet weight) of selenium in the whole fish can reach 0.48-0.77 mg / kg. The sturgeon fed on the feed have better growth performance, feed utilization rate and muscle quality; besides, the selenium-rich sturgeon feed further has the efficacy of protecting the liver and the gallbladder and enhancing the oxidation resistance of the sturgeon.

Description

Technical field [0001] The invention relates to the field of aquaculture, in particular to a selenium-enriched sturgeon feed and a preparation method thereof. Background technique [0002] Sturgeon, also known as kinky fish, is a large and long-lived fish among the existing freshwater fish in the world. It has a history of more than 200 million years. China is one of the countries with the most species, widest distribution and richest resources of sturgeon in the world. Due to the high nutritional value of sturgeon, especially its rich collagen, it is popular among consumers. With the rapid increase in market demand for sturgeon and the increasing maturity of artificial propagation technology, the sturgeon breeding industry in my country has developed rapidly, and the total amount of aquaculture has continued to increase. [0003] However, the development of the sturgeon feed industry in China is relatively late. In the past, eel feed was usually used for sturgeon farming. Althou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/22A23K10/20A23K10/37A23K20/147A23K20/163A23K20/105A23K20/158A23K20/174A23K20/20A23K20/26
CPCA23K10/20A23K10/22A23K10/37A23K20/105A23K20/147A23K20/158A23K20/163A23K20/174A23K20/26A23K20/30A23K50/80Y02A40/818Y02P60/87
Inventor 张学振王力吴雷田大才刘琪
Owner HUAZHONG AGRI UNIV
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