Production method of selenium-rich duck egg and selenium-rich duck

Abstract

The invention relates to a method for producing duck eggs rich in selenium and a duck rich in selenium. Each ton of feedstuff comprises the following components: 0.5 to 2.0 kilograms of earthworm powder, 0.5 to 1.5 kilograms of radix astragali powder, 5.0 to 9.0 kilograms of dried head mud of fresh dipsey cods, 0.15 to 0.8 kilogram of selenium yeast, 1.0 to 1.2 percent of soybean oil, 8.0 to 8.2 percent of stone dust, 1.0 percent of calcium hydrophosphate, 0.3 percent of common salt, and 1.0 percent of nutrilite (consisting of methionine, compound lycine, vitamins, minerals, choline chloride,phytic acid enzymes and foods). A laying duck is fed on common daily diet feedstuffs before the laying rate reaches 60 percent; and when the laying rate is more than 60 percent, the duck is fed on the feedstuff of the invention so that the selenium content of a duck egg laid 20 days later reaches to be 0.3 to 1.5 milligrams per kilogram, the selenium content in the blood of the laying duck reaches 0.08 to 0.3 ppm, and the selenium content in the musculature is between 0.07 and 0.5 milligram per kilogram.

Description

technical field [0001] The invention relates to the field of poultry feed, in particular to the technical field of adding organic trace element food elements and using it to produce poultry eggs and meat rich in organic trace elements. Background technique [0002] Modern epidemiological investigations have confirmed that selenium deficiency can lead to the occurrence of many diseases. At present, there are more than 40 kinds of human diseases related to selenium deficiency, including cancer, cardiovascular and cerebrovascular diseases, diabetes, liver disease, high blood pressure, sexual dysfunction, etc. In recent years, studies have found that the blood selenium content of AIDS patients is lower than that of normal people blood selenium content. The Chinese Nutrition Society recommends that the daily selenium intake of Chinese people from the diet is between 50-250 micrograms, and the daily selenium intake recommended by the World Health Organization is 400 micrograms. ...

AI Technical Summary

Problems solved by technology

In the past, the method of directly supplementing inorganic selenium was used for selenium supplementation. The absorption of inorganic selenium (mainly sodium selenite) was unstable, and the safe amount was difficult to grasp, which could easily cause poisoning. The method of organic selenium supplementation has gradually become an important way for people to supplement selenium.

In recent years, with people's in-depth understanding of the role of selenium and food safety, selenium supplementation through eating foods rich in organic selenium has become an important form of selenium supplementation for the human body, but currently there are very few foods that can provide stable organic selenium content, and it is difficult to To achieve the purpose of quantitative selenium supplementation

[0003] Chinese patent No. 92105296.0 discloses a production technology of selenium-enriched eggs, which is to add large doses of inorganic selenium to common feed. The defect of this production method is that the amount of inorganic selenium is not easy to control, and it is easy to produce toxic and side effects on production animals.

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