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Compound feed additive

A compound feed and additive technology, applied in animal feed, animal feed, application, etc., can solve the problems of low pig absorption rate, high excretion rate, and environmental pollution, and achieve good compatibility, low excretion rate, and small 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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  • Compound feed additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Acquisition of marine Rhodotorula yeast WYN1 and domestication of copper tolerance

[0034] (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

[0051] Example 2: (Comparative Test) Fermentation Conditions for High-yielding Carotenoids of Rhodotorula marina WYN1

[0052] 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

[0053] Embodiment 3: feed additive and its preparation

[0054] The parts by weight of the feed additive are composed as follows:

[0055] 10 compound polysaccharide extracts, 15 sea red yeast fermented cultures, 6 poplar flower extracts, 5 yams, 5 centella asiatica, 2 scallions, and ebony plums; the sea red yeast preservation number is CCTCCNO: M2014592.

[0056] The preparation method of described complex polysaccharide extract is as follows:

[0057] The raw materials astragalus, alfalfa and wolfberry were dried and crushed through a 60-mesh sieve at a mass ratio of 4:2:1, and boiling water was added to 8 times the total weight of the crushed matter, extracted twice for 30 minutes each time, filtered, mixed with the extracts, and cooled naturally to At room temperature, add absolute ethanol to the extract solution to make the ethanol concentration in the mixture reach 70%, seal and refrigerate for precipitation at 10°C for 8 hours, dry the precipitate in vacuum, crush it t...

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Abstract

The invention provides a compound feed additive, which is prepared from the following components in parts by weight: 8-15 parts of a compound polysaccharide extract, 8-20 parts of a rhodotorula benthica fermentative substance, 5-10 parts of a poplar flower extract, 3-8 parts of Chinese yam, 3-8 parts of centella asiatica, 1-5 parts of allium macrostemon and 1-5 parts of dark plums, wherein the compound polysaccharide extract is prepared from astragalus membranaceus, wolfberry and alfalfa; and the preservation number of the rhodotorula benthica is CCTCC NO:M2014592. The rhodotorula benthica is capable of highly producing carotinoid and gathering copper; through a static cultivation method, the carotinoid yield and the copper content in the yeast are effectively increased; the compound feed additive is applied to a feed as a feed additive, so that the carotinoid, B-group vitamins and copper ions can be provided; inorganic copper ions used in a conventional feed are replaced by the compound feed additive with efficient copper-enriched capacity; the stability is good; the compound feed additive instead of an antibiotic can be used in the feed by combination with a plurality of Chinese herbal medicines; the safety of meat products is improved; the utilization rate of the feed is increased; the immunity of animals is enhanced; the intestinal health is adjusted; the metabolic functions and the reproductive capacities of the animals are improved; and the raising benefits are improved.

Description

technical field [0001] The invention belongs to the field of feed additives, and in particular relates to a compound feed additive product capable of increasing feed utilization and improving animal intestinal health 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 ammonia, hydr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/16A23K1/00A23K1/14
Inventor 李绩
Owner BEIJING KEHUITONG WISDOM SCI & TECH CO LTD
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