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Mixed feed additive and application thereof

A feed additive and mixed-type technology, which is applied in the field of feed additive preparation, can solve the problems of unreported interaction between γ-aminobutyric acid and Cordyceps strain fermentation products, achieve the best feed additive product and reduce heat stress response. Effect

Inactive Publication Date: 2019-10-18
合肥迈可罗生物工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there are many studies on the effect of γ-aminobutyric acid on relieving heat stress in animals, but the interaction between γ-aminobutyric acid and the fermented product of Cordyceps has not been reported.

Method used

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  • Mixed feed additive and application thereof
  • Mixed feed additive and application thereof
  • Mixed feed additive and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Preparation of solid fermented product of Cordyceps guni

[0029] (1) Fermentation strain: Acremonium terricola MKL18 isolated from Cordyceps guni (purchasable from Hefei Maikeluo Biological Engineering Co., Ltd.) was used as the fermentation object.

[0030] (2) Seed cultivation:

[0031] The medium for seed culture is: 600g white granulated sugar, 300g silkworm chrysalis powder, 150g peptone, 200g soybean powder, 100g yeast powder, 10g MgSO 4 , 10g KH 2 PO 4 , dissolved in 20L water, natural pH; sterilized by high pressure steam at 121°C for 30min.

[0032] The conditions of seed fermentation are as follows: temperature is 25°C, ventilation rate is 1.00L / (L·min), inoculum size is 5% (mass fraction), liquid volume in 30L airlift fermentation tank is 67%, and fermentation time is 24h.

[0033] (3) Expansion of training:

[0034] The culture medium for expanded cultivation is: 6000g white granulated sugar, 3000g silkworm chrysalis powder, 1500g peptone, 2000g soy...

Embodiment 2

[0050] 1. Pig fattening experiment

[0051] 1.1 Test treatment

[0052] In a pig farm of a large-scale breeding group in Quanjiao, Anhui Province, a 30-day experiment was conducted on fattening pigs in a hot and humid environment (feeding time was 30 days, test time: June 30, 2018-July 30, 2018 ).

[0053] The specific test content is:

[0054] A total of 120 Duroc pigs aged 120 days, with similar weight and quality were selected as the experimental subjects, and were randomly divided into 6 groups, 20 pigs in each group. The feed provided by the following test groups or control groups was used for feeding, and the routine breeding indicators (average daily feed intake, average daily gain, average feed-to-meat ratio) of fattening pigs and the serum stress indicators (cortical Alcohol (COR) and adrenal cortex hormone (ACTH)); Among them, the serum stress index was detected by enzyme-linked immunosorbent assay.

[0055] The specific differences between the test group and the...

Embodiment 3

[0116]This embodiment adopts the same method as in Example 1 to prepare the solid fermented product of Acremonium acremonium; get 40 parts by weight of the solid fermented product of Acremonium acremonium and 50 parts by weight of γ-aminobutyric acid powder and 10 parts by weight of magnesium carbonate powder Mixing is carried out to obtain a feed additive.

[0117] The feed additive was added to the basal ration for feeding mutton sheep, and the addition amount was 0.4‰, and the basal ration containing 0.4‰ of γ-aminobutyric acid powder was used as a control; the results showed that the feed intake, daily The weight gain was higher than that of the control group, and the feed-to-meat ratio was lower than that of the control group.

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Abstract

The invention discloses a mixed feed additive and application thereof. The mixed feed additive is mainly formed by mixing, by mass percentage, 40-95% of a cordyceps gunnii strain fermentation material, 5-60% of gamma-aminobutyric acid powder and / or the balance carriers. The mixed feed additive obtained by mixing the cordyceps gunnii strain fermentation material and the gamma-aminobutyric acid powder can more effectively reduce heat stress responses of livestock and poultry animals, ensure the normal growth and productivity improvement of the livestock and poultry animals in a stress state, andprovides a better feed additive product for the livestock and poultry animals in the heat stress response state.

Description

technical field [0001] The invention relates to the technical field of feed additive preparation, in particular to a mixed feed additive and its application. Background technique [0002] Cordyceps is a valuable fungal drug and high-grade tonic in China. Before the Ming Dynasty in my country, people knew the use of Cordyceps; in a broad sense, Cordyceps refers to fungal fruiting bodies (spores) and insects formed after insects or arthropods are infected by fungal ascus fungi. or complexes of arthropods. There are more than 400 species of fungi in the genus Cordyceps, the most valuable of which is Cordyceps sinensis, which is a complex formed by the fungus Ophiocordyceps of the family Ergotaceae parasitizing the larvae of the genus Hepialus spp. The endemic species in the high-altitude plateau, referred to as "Cordyceps", is a traditional Chinese medicine. [0003] At present, there are many studies on Cordyceps strains and their fermentation products, which can be applied t...

Claims

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Application Information

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IPC IPC(8): A23K50/30A23K50/75A23K50/10A23K10/12A23K20/142A23K20/24A23K20/28A23K10/30
CPCA23K50/30A23K50/75A23K50/10A23K10/12A23K20/142A23K20/24A23K20/28A23K10/30Y02P60/87
Inventor 徐自奥徐娟娟曹珊杨爽李晓祥
Owner 合肥迈可罗生物工程有限公司
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