Selenium-enriched rainbow trout feed, and preparation method and application thereof

A technology for feed and rainbow trout, applied in the field of aquatic products, can solve the problems of reducing the growth performance of rainbow trout, feed utilization and immune function, evaluation of the health status of rainbow trout, toxicity of rainbow trout, etc., to improve antioxidant capacity and non-specific immune function, ensure growth Performance, low toxicity effect

Inactive Publication Date: 2017-09-01
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a high-quality food protein source, fish has relatively many studies on its selenium-enriched products, such as the selenium-enriched organic fish and its breeding method disclosed in the Chinese patent application number CN201010579798.1, and the application number is 201110392618.3 The selenium-enriched feed for cultivating selenium-enriched fish announced by Chinese patents and its preparation method and application, the selenium-enriched feed announced by these patents can all cultivate selenium-enriched fish, but various fish have different nutritional requirements, Therefore these patents are not necessarily applicable to the rainbow trout that the present invention pays close attention to
In addition, the Chinese patent application No. 201410532760

Method used

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  • Selenium-enriched rainbow trout feed, and preparation method and application thereof
  • Selenium-enriched rainbow trout feed, and preparation method and application thereof
  • Selenium-enriched rainbow trout feed, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] A selenium-enriched rainbow trout feed (feed 1), comprising:

[0069]

[0070] Each 1000g mineral premix includes: 350g calcium lactate pentahydrate, 250g dipotassium hydrogen phosphate, 175g calcium dihydrogen phosphate monohydrate, 75g sodium chloride, 0.125g potassium iodide, 37.5g copper sulfate pentahydrate, 2.5 manganese sulfate monohydrate g, 14.05g of zinc sulfate monohydrate and 35g of potassium carbonate, and the rest are auxiliary materials.

[0071] Each 1000g vitamin premix includes: vitamin A60g, vitamin B1 8g, vitamin B2 12g, vitamin B38g, vitamin B5 24g, vitamin B6 12g, vitamin B7 0.4g, vitamin B12 0.02g, vitamin C 600g, vitamin D3 0.04g, vitamin E 96g, vitamin K3 8g and folic acid 4g, and the rest are auxiliary materials.

[0072] The selenium is added in the form of yeast selenium, and the yeast selenium used in the present invention is determined by inductively coupled plasma mass spectrometry, and its selenium content is 4000 mg / kg;

[0073] The...

Embodiment 2

[0093] Application of a selenium-enriched rainbow trout feed in cultivating selenium-enriched rainbow trout:

[0094] In this example, the three feeds obtained in Example 1 were used as experimental feeds to carry out breeding experiments. Before the start of the experiment, the dry matter, crude protein, crude fat, ash and total selenium content of feeds 1 to 3 were measured, and the results are shown in Table 2:

[0095] Table 2 Approximate composition and total selenium content of experimental feed

[0096]

[0097]

[0098] Before the experiment started, 180 rainbow trout with an average body weight of 144.87±26.45g were randomly put into 9 ring-shaped plastic tanks (1000L). The 9 tanks were randomly divided into 3 groups, and all fish were starved for 24 hours and weighed one by one. After the start of the experiment, the four groups of fish were fed with the four experimental feeds twice a day (9:00 and 16:00), and the food intake was recorded in detail. The water...

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Abstract

The invention relates to the field of the aquaculture feed and in particular relates to a selenium-enriched rainbow trout feed, and a preparation method and an application thereof. The feed provided by the invention comprises Peru fish meal, swine blood meal, euphausiid shrimp meal, chicken meal, corn gluten meal, bean pulp, soybean protein isolate, vital gluten, pregelatinized starch, sleeve-fish oil, soya bean lecithin, glycine betaine, choline chloride, a mineral substance premix, a vitamin premix and yeast selenium. By feeding rainbow trout with the feed provided by the invention for 70 days, the total selenium content (wet weight) in muscles of the rainbow trout can reach 0.57-1.12mg/kg. The total selenium content (wet weight) of full fish can reach 0.58-1.06mg/kg. The rainbow trout bred by the feed is better in growth performance, feed nutrient gain rate and muscle quality. In addition, the selenium-enriched rainbow trout feed also has the functions of protecting liver and gallbladder and enhancing the oxidation resistance of rainbow trout and non-specific immune function.

Description

technical field [0001] The invention relates to the field of aquatic products, in particular to a selenium-enriched rainbow trout feed and a preparation method and application thereof. Background technique [0002] Selenium, since its discovery by Swedish chemist Berzelius in 1817, has been considered a poisonous element for a long time. It was not until 1957 that Schwarz and Foltz found that selenium was contained in the main component of the third factor that inhibited liver necrosis induced by eating in rats, and the identity of selenium as an essential trace element in animals was gradually recognized by people. Subsequently, a large number of studies have shown that selenium plays an important role in various normal body functions, and selenium deficiency will lead to many diseases such as Keshan disease, white muscle disease and cardiovascular disease. [0003] Selenium is widely distributed in the soil, can be absorbed and transformed by plants, and controls the sele...

Claims

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Application Information

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IPC IPC(8): A23K50/80A23K10/22A23K10/26A23K10/20A23K20/147A23K10/37A23K20/163A23K20/158A23K20/105A23K20/174A23K20/24A23K20/26A23K20/22A23K20/20
CPCA23K10/20A23K10/22A23K10/26A23K10/37A23K20/105A23K20/147A23K20/158A23K20/163A23K20/174A23K20/22A23K20/24A23K20/26A23K20/30A23K50/80Y02A40/818Y02P60/87
Inventor 张学振王力吴雷田大才刘琪
Owner HUAZHONG AGRI UNIV
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