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Dairy cattle feed additive containing selenium-enriched yeast, premix and formula feed

A technology of dairy cow feed and selenium-enriched yeast, which is applied in animal feed, animal feed, applications, etc., can solve problems such as not meeting the needs of green and safety, and unsatisfactory animal feeding effects, so as to improve biological utilization and ensure Intestinal health, avoiding mutual resistance effects

Active Publication Date: 2013-01-16
BEIJING DABEINONG TECH GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many kinds of feed additives for dairy cows researched and produced at home and abroad, but most feed additives have unsatisfactory animal feeding effects, and most of them are added with antibiotics. The disadvantages are becoming more and more obvious, and they do not meet the needs of human beings for greenness and safety.

Method used

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  • Dairy cattle feed additive containing selenium-enriched yeast, premix and formula feed
  • Dairy cattle feed additive containing selenium-enriched yeast, premix and formula feed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 Selenium-enriched yeast powder preparation

[0024] (1) Incline strains: Inoculate the strains of selenium-enriched yeast (Saccharomyces cerevisiae) CGMCCNo.0539 (purchased from the Institute of Microbiology, Chinese Academy of Sciences) on wort solids containing 15% sugar and 500 μg / ml sodium selenite concentration After culturing for 36 hours on the slant at 28°C, store in a 4°C refrigerator.

[0025] (2) First-level liquid strain culture: After activating the preserved selenium-enriched yeast strain, a ring of cells was cultured in 150 ml of wort with a total sugar content of 15% and a selenite concentration of 500 μg / ml Under the condition of 28° C., the rotation speed of the shaker is 180 rpm, and cultivated for 20 hours, which is the first-level liquid seed culture.

[0026] (3) Secondary liquid strain culture: Put the primary seed culture solution into a 3000ml Erlenmeyer flask of wort medium with a total sugar content of 15% and a selenite concentr...

Embodiment 2

[0031] Embodiment 2 Preparation of iron-rich yeast powder

[0032] (1) Incline strains: Inoculate iron-rich yeast (Saccharomyces cerevisiae) CGMCCNo.0895 (purchased from the Institute of Microbiology, Chinese Academy of Sciences) on wort solid slopes containing 8% sugar and 400 μg / ml ferrous sulfate After culturing for 48 hours at 28°C, store in a 4°C refrigerator.

[0033] (2) First-level liquid strain culture: After activating the preserved iron-rich yeast strains, connect a ring of cells to 150 ml of wort medium with a total sugar content of 10% and a ferrous sulfate concentration of 400 μg / ml In the Erlenmeyer flask, under the condition of 28 ℃, the rotation speed of the shaker is 180rpm, and cultivated for 18 hours, which is the first-level liquid seed culture.

[0034] (3) Secondary liquid strain culture: Put the primary seed culture solution into a 3000ml Erlenmeyer flask of wort medium with a total sugar content of 20% and a ferrous sulfate concentration of 600 μg / ml ...

Embodiment 3

[0039] Embodiment 3 Zinc-rich yeast powder preparation

[0040] (1) Incline strains: inoculate the strains of zinc-rich yeast (Saccharomyces cerevisiae) CGMCCNo.0896 (purchased from the Institute of Microbiology, Chinese Academy of Sciences) on the wort solid slope with sugar content of 10% and zinc sulfate concentration of 400 μg / ml , under the condition of 28°C, cultured for 48 hours, and stored in a 4°C refrigerator.

[0041] (2) First-level liquid strain culture: After activating the preserved zinc-rich yeast strains, connect a ring of cells to a medium containing 150 ml of wort medium with a total sugar content of 10% and a zinc sulfate concentration of 400 μg / ml. In the Erlenmeyer flask, under the condition of 28° C., the rotating speed of the shaker is 180 rpm, and cultured for 16 hours, which is the primary liquid seed culture.

[0042] (3) Secondary liquid strain culture: Put the first-level seed culture solution into a 3000ml Erlenmeyer flask of wort medium with a t...

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Abstract

The invention relates to a dairy cattle feed additive containing selenium-enriched yeast, iron-enriched yeast and zinc-enriched yeast. The dairy cattle feed additive comprises selenium-enriched yeast powder, iron-enriched yeast powder, zinc-enriched yeast powder, mycotoxin adsorbent, compound vitamin, compound probiotics and a biological antioxidant. The dairy cattle feed additive is reasonable in formula, contains various organic microelements and probiotics and is balanced in nutrition, antibiotics are not added, the number of somatic cells in milk can be effectively reduced, the occurring rate of recessive mastitis of dairy cattle is reduced, a good developmental mechanism of a mammary gland system is maintained, milk yield and milk quality are improved, white muscle disease of the dairy cattle can be prevented, the requirements of vast farmers at present can be met, and the dairy cattle feed additive is suitable for development of green healthy cultivation and production of pollution-free ruminant products.

Description

technical field [0001] The invention relates to a dairy cattle feed additive containing selenium-enriched yeast, iron-enriched yeast and zinc-enriched yeast, belonging to the field of feed additives. Background technique [0002] Mastitis is the most common disease in dairy cows, and can be divided into clinical mastitis and subclinical mastitis according to its manifestations. Subclinical mastitis, also known as subclinical mastitis, refers to no visible changes in the breast and milk, but changes in the physical and chemical properties of the milk, such as conductivity, somatic cells, and pH value, which must be detected by special physical and chemical methods mastitis. According to data, there are about 220 million dairy cows in the world, 33% of which suffer from various types of mastitis, of which the incidence of recessive dairy cow mastitis is as high as about 50%, and the incidence of dairy cow mastitis in my country is even higher. [0003] Cow mastitis is an inf...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/16
Inventor 谢飞刘滢彭子欣吴雅琨冯秋月陈慧鑫马青山何增国王安如
Owner BEIJING DABEINONG TECH GRP CO LTD
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