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Application of Fermented Products of Cordyceps as Feed Additives in Improving Reproductive Performance of Dairy Cows

A feed additive and reproductive performance technology, applied in the field of dairy cattle breeding, to achieve the effects of reducing morbidity, improving conception rate, shortening breeding time and calving interval

Active Publication Date: 2021-05-07
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

[0014] However, there is no report on the application of Cordyceps in improving the reproductive performance of dairy cows

Method used

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  • Application of Fermented Products of Cordyceps as Feed Additives in Improving Reproductive Performance of Dairy Cows
  • Application of Fermented Products of Cordyceps as Feed Additives in Improving Reproductive Performance of Dairy Cows
  • Application of Fermented Products of Cordyceps as Feed Additives in Improving Reproductive Performance of Dairy Cows

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1. Fermentation liquid

[0048] (1) Cordyceps gunis strain: Acremonium terricola MKL18 (can be purchased from Hefei Miikeluo Biological Engineering Co., Ltd.);

[0049] (2) Seed cultivation:

[0050] 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.

[0051] 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.

[0052] (3) Expansion of training:

[0053] The culture medium for expanded cultivation is: 6000g white granulated sugar, 3000g silkworm chrysalis powder, 1500g peptone, 2000g soybean powder, 1000g yeast powder, 100g MgSO 4 , 100g KH 2 PO 4 , dissolved in 200L water, na...

Embodiment 2

[0067] In this embodiment, Acremonium terricola (Acremonium terricola) MKL18 is used as the fermentation object for fermentation to obtain fermentation broth, fermentation powder and solid culture; except that the medium used for liquid fermentation is different from that of Example 1, the remaining contents are the same as those in Example 1. Example 1 is the same.

[0068] The medium for seed culture is: 600g white granulated sugar, 550g yeast powder, 200g soybean powder, 10g MgSO 4 , 10gKH 2 PO 4 , dissolved in 20L water, natural pH; sterilized by high pressure steam at 121°C for 30min.

[0069] The culture medium for expansion is: 6000g white granulated sugar, 5500g yeast powder, 2000g soybean powder, 100g MgSO 4 , 100g KH 2 PO 4 , dissolved in 200L water, natural pH; sterilized by high pressure steam at 121℃ for 30min.

[0070] The components in the fermentation broth, fermentation powder and solid culture prepared in this example were determined, and the results ar...

Embodiment 3

[0075] In this embodiment, Acremonium terricola (Acremonium terricola) MKL18 is used as the fermentation object for fermentation to obtain fermentation broth, fermentation powder and solid culture; except that the medium used for liquid fermentation is different from that of Example 1, the remaining contents are the same as those in Example 1. Example 1 is the same.

[0076] The medium for seed culture is: 600g white granulated sugar, 400g yeast powder, 200g soybean powder, 150g peptone, 10gMgSO 4 , 10g KH 2 PO 4 , dissolved in 20L water, natural pH; sterilized by high pressure steam at 121°C for 30min.

[0077] The culture medium for expansion is: 6000g white granulated sugar, 4000g yeast powder, 2000g soybean powder, 1500g peptone, 100g MgSO 4 , 100g KH 2 PO 4 , dissolved in 200L water, natural pH; sterilized by high pressure steam at 121℃ for 30min.

[0078] The components in the fermentation broth, fermentation powder and solid culture prepared in this example were d...

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Abstract

The invention discloses the application of the fermented product of the genus Cordyceps as a feed additive in improving the reproductive performance of dairy cows. The present invention finds that feeding dairy cows with fermented products of Cordyceps species can significantly increase the conception rate and estrus rate of dairy cows, shorten the mating time and calving interval, reduce the incidence of cow placenta retention, and promote luteinizing hormone, follicle-stimulating hormone and The hormone secretion of progesterone, and then realize the improvement of the reproductive performance of dairy cows.

Description

technical field [0001] The invention relates to the technical field of dairy cow breeding, in particular to the application of a fermented product of the genus Cordyceps as a feed additive in improving the reproductive performance of dairy cows. Background technique [0002] In recent years, my country's agricultural industrial structure has implemented strategic adjustments, and the entire dairy farming industry has developed rapidly. Due to the continuous improvement of genetic characteristics and the improvement of feeding and management conditions, the production performance of dairy cows has been greatly improved. At the same time, the reproductive performance of dairy cows is also generally affected. As we all know, there are many factors that affect the reproductive performance of dairy cows, and the relationship between them is very complicated. Reasonable diet structure and nutritional balance throughout the process are the basis for maintaining high reproductive p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K50/10A23K10/12C12N1/14C12R1/79C12R1/645
CPCA23K10/12A23K50/10C12N1/14
Inventor 李晓祥徐自奥曹赞
Owner 合肥迈可罗生物工程有限公司
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