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A method for preparing a selenium-rich feed additive

A feed additive and selenium-enriched technology, which is applied in botany equipment and methods, animal feed, animal feed, etc., can solve the problems of inorganic selenium mixed with edible animals, such as poisoning, high absorption efficiency and toxicity, and limited effect, so as to improve production performance and immunity, and the effect of solving the hidden danger of selenium poisoning

Inactive Publication Date: 2017-12-19
安徽微源生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, what is added in the feed at present is inorganic selenium (sodium selenite). Due to the high absorption efficiency and toxicity of sodium selenite, its role in actual production is limited. Even if the inorganic selenium is not mixed evenly May cause poisoning in food animals

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation method of a selenium-enriched feed additive, comprising the following steps: cultivating selenium-enriched milk vetch, applying a selenium-enriched organic fertilizer once in spring and before the flowering of the milk vetch, and watering once if there is no effective precipitation within 7 days after fertilization Two-thirds of the above-ground part of milk vetch is harvested after maturity, dried and crushed to make a selenium-enriched feed additive, the dry weight of the selenium-enriched milk vetch has a selenium content of 10 mg / kg, and the harvested The selenium milk vetch is dried in a dryer at 80°C to constant weight, and the dried selenium-enriched milk vetch is crushed into 80-mesh powder particles with a pulverizer, and the amount of the selenium-enriched organic fertilizer is 20 kg.

Embodiment 2

[0017] A preparation method of a selenium-enriched feed additive, comprising the following steps: cultivating selenium-enriched milk vetch, applying a selenium-enriched organic fertilizer once in spring and before the flowering of the milk vetch, and watering once if there is no effective precipitation within 7 days after fertilization , harvest two-thirds of the aerial part of milk vetch after it matures, dry and pulverize it, and make a selenium-enriched feed additive. The selenium milk vetch is dried in a dryer at 100°C to constant weight, and the dried selenium-enriched milk vetch is crushed into 150-mesh powder particles with a pulverizer, and the amount of the selenium-enriched organic fertilizer is 250 kg.

Embodiment 3

[0019] A preparation method of a selenium-enriched feed additive, comprising the following steps: cultivating selenium-enriched milk vetch, applying a selenium-enriched organic fertilizer once in spring and before the flowering of the milk vetch, and watering once if there is no effective precipitation within 7 days after fertilization Two-thirds of the above-ground part of milk vetch is harvested after maturity, dried and crushed to make a selenium-enriched feed additive, the dry weight of the selenium-enriched milk vetch has a selenium content of 50 mg / kg, and the harvested The selenium milk vetch is dried in a dryer at 120°C to constant weight, and the dried selenium-enriched milk vetch is crushed into 200-mesh powder particles with a pulverizer, and the amount of the selenium-enriched organic fertilizer is 500 kg.

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Abstract

A method for preparing a selenium-rich feed additive is disclosed. The method includes applying a selenium-rich organic fertilizer for Chinese milk vetch in one time before flowering after the beginning of spring, watering the Chinese milk vetch for one time if no effective precipitation occurs in seven days after fertilization, harvesting two thirds of overground parts after the Chinese milk vetch is ripe, and drying and crushing the harvested Chinese milk vetch to prepare the selenium-rich feed additive. The dry-weight selenium content of the selenium-rich Chinese milk vetch is 3-50 mg / kg. The harvested selenium-rich Chinese milk vetch is dried in a dryer having a temperature of 80-120 DEG C until a constant weight. The dried selenium-rich Chinese milk vetch is crushed by a crushing machine into powder particles having a size of 80-200 meshes. 20-500 kg of the selenium-rich organic fertilizer is applied per mu. Through converting inorganic selenium into organic selenium through the Chinese milk vetch, storing the organic selenium in the Chinese milk vetch, and preparing the Chinese milk vetch into the additive for animal feed, production performance and immunity of livestock and poultry can be effectively improved, selenium-rich eggs and selenium-rich meat can be produced, and a selenium poisoning hidden danger caused by addition of the inorganic selenium into feed can be solved well.

Description

【Technical field】 [0001] The invention relates to the field of a selenium-rich feed additive, in particular to a preparation method of a selenium-rich feed additive. 【Background technique】 [0002] Milk vetch (scientific name: Astragalus sinicus L.) is a biennial herbaceous plant of the genus Astragalus in the Fabaceae family. It is prostrate and multi-branched and can reach a height of 30 cm. It has odd-pinnate compound leaves with shorter petioles than rachis; stipules are free, and the leaflets are obovate or Elliptic, apex blunt or slightly concave, base broadly cuneate, nearly glabrous above, white pilose scattered below, racemes with flowers in umbels; common pedicels axillary, bracts triangular-ovate, pedicel short; Calyx campanulate, calyx teeth lanceolate, corolla purple or orange yellow, flag petals obovate, petals oblong, pods linear oblong, seeds reniform, chestnut brown, flowering from February to June, March to July monthly results. Distributed in various pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K20/20A23K10/30A01G1/00
CPCA23K20/30A01G22/00A23K10/30
Inventor 刘寿峰
Owner 安徽微源生物科技有限公司
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