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High-efficiency pig feed additive

A feed additive and compound polysaccharide technology, applied in the direction of animal feed, animal feed, application, etc., can solve the problems of low absorption rate, high excretion rate and poor compatibility of pigs, and achieve good compatibility, low excretion rate and little environmental pollution. Effect

Inactive Publication Date: 2015-11-18
BEIJING KEHUITONG WISDOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many problems in adding this inorganic copper sulfate to the feed, such as low absorption rate of pigs, poor compatibility with other components in the diet, high excretion rate, and environmental pollution.

Method used

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  • High-efficiency pig feed additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: Acquisition of marine Rhodotorula yeast WYN1 and domestication of copper tolerance

[0033] (1) Fresh sea shrimp, starfish, seaweed and other biological samples collected from the Yellow Sea are placed in sterile YEPD medium, and red or pink round colonies are picked for further purification and culture. According to the accumulation of carotenoids in each strain, the strains with high carotenoid production were screened. Among them, the marine rhodotorula WYN1 with higher carotenoid production has oval cells without pseudohyphae; it forms red colonies on the YEPD medium prepared in seawater, with smooth surface and neat edges; it does not produce eggs on the sporulation medium Cystic spores, multilateral budding, no sporulation; no fermentation of sugar, no formation of starch-like compounds, and no inositol synthesis. Based on the above characteristics, it was preliminarily determined to belong to the genus Rhodotorula. Keep ramps in the refrigerator.

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Embodiment 2

[0050] Example 2: (Comparison Test) Research on Fermentation Conditions of High-yielding Carotenoids of Rhodotorula marina WYN1

[0051] Fermentation medium composition: glucose 2.5%, peptone 2.5%, magnesium sulfate 0.02%, potassium dihydrogen phosphate 0.15%, copper content 300mg / L (copper sulfate configuration), sodium chloride 20%, the rest is water; the initial pH is 8 , the inoculum amount was 10%, the shaker speed was 180r / min, and after culturing at 28°C for 24 hours, the temperature was adjusted to 30°C, the pH was adjusted to 5, and the nitrogen source was added once, that is, peptone was added according to the addition amount of 2.5%, and continued Ferment for 24h. The marine Rhodotorula WYN1 was fermented and cultured by the above method, and its biomass, carotenoid production and intracellular copper content were 27.52 g / L, 25.12 mg / L and 6240 μg / g dry bacteria, respectively.

Embodiment 3

[0052] Embodiment 3: feed additive and its preparation

[0053] The parts by weight of the feed additive are composed as follows:

[0054] Compound polysaccharide extract 10, marine red yeast fermented culture 15, epimedium extract 6, licorice 5, hawthorn 5, honeysuckle 2, dandelion 3; the marine red yeast preservation number is CCTCCNO: M2014592.

[0055] The preparation method of described complex polysaccharide extract is as follows:

[0056] Dry and crush the raw materials astragalus, wolfberry, and alfalfa with a mass ratio of 4:2:1, pass through a 60-mesh sieve, add boiling water 8 times the total weight of the crushed matter, extract twice for 30 minutes each time, filter and mix the extracts, and naturally cool to room temperature , adding absolute ethanol to the extract solution to make the ethanol concentration in the mixture reach 70%, airtightly refrigerating and precipitating at 10°C for 8 hours, drying the precipitate in vacuum, pulverizing and passing through a...

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Abstract

The invention provides an environment-friendly pig feed additive product. The environment-friendly pig feed additive product comprises the following components in parts by weight: 8-15 parts of compound polysaccharide extract, 8-20 parts of an oceanic red yeast fermentative substance, 5-10 parts of epimedium extract, 3-8 parts of liquorice, 3-8 parts of hawthorn fruit, 1-5 parts of honeysuckle and 1-5 parts of dandelion, wherein the compound polysaccharide extract is obtained from astragalus, wolfberry and alfalfa, and the preservation number of oceanic red yeast is CCTCC NO:M2014592. The green pig feed additive product has the advantages that the oceanic red yeast can produce carotenoid with high yield and also can enrich copper, yield of carotenoid and copper content of the yeast are effectively improved by adopting a static cultivation method, the oceanic red yeast is applied to feed as a feed additive, can provide carotenoid, B-vitamins and copper ions, replaces inorganic copper ions used in the conventional feed due to high-efficiency copper enriching capability, is good in stability and can replace antibiotic to be used in feed through compatibility of Chinese herbal medicines, safety of a pork product is improved, organism immunity of a pig can be enhanced, intestinal health is regulated, metabolism function and fertility of the pig are improved, and feeding benefit is improved.

Description

technical field [0001] The invention belongs to the field of feed additives, in particular to a high-efficiency green feed additive product for pigs capable of improving feed utilization and animal body immunity and fecundity and a preparation method thereof. Background technique [0002] At present, the aquaculture industry generally has problems such as low feed utilization rate, incomplete digestion of nutrients, and poor storage that lead to moisture absorption, mildew or insects in the feed. The existence of these problems not only greatly increases the cost of feeding, but also leads to waste of resources. [0003] Solving the above problems, controlling the cost of breeding, and reducing the risk of breeding are a major bottleneck for the rapid development of the breeding industry. The use of chemically synthesized additives will cause problems such as animal durability and residues, endangering human health, and there will be a large amount of excrement, such as ammo...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/14A23K1/16A23K1/00
Inventor 李绩
Owner BEIJING KEHUITONG WISDOM SCI & TECH CO LTD
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