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Method for improving sow reproductive performance

A technology for reproductive performance and sows, which is applied in the field of livestock and poultry breeding to achieve the effect of improving reproductive performance

Active Publication Date: 2018-06-12
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

[0010] However, there is no report on the application of Cordyceps in improving the reproductive performance of sows

Method used

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  • Method for improving sow reproductive performance
  • Method for improving sow reproductive performance
  • Method for improving sow reproductive performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1. Fermentation liquid

[0042] (1) Cordyceps gunis strain: Acremonium terricola MKL18 (can be purchased from Hefei Miikeluo Biological Engineering Co., Ltd.);

[0043] (2) Seed cultivation:

[0044] 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.

[0045] 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.

[0046] (3) Expansion of training:

[0047] 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

[0061] 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.

[0062] 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.

[0063] 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.

[0064] The components in the fermentation broth, fermentation powder and solid culture prepared in this example were determined, and the results ar...

Embodiment 3

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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 a method for improving sow reproductive performance. The method includes: using a cordyceps strain fermentation product as a feed additive to feed sows. The cordyceps strain fermentation product is adopted to feed the sows, nest average birth, nest average live birth, piglet newborn average weight, 21-day-old weaned piglet number, 21-day-old weaned piglet average weight and21-day-old weaned nest average weight of the sows can be increased remarkably, oestrus interval time of the sows is reduced, sow oestrus rate and expression level of estradiol and progesterone are increased, and the sow reproductive performance is improved.

Description

technical field [0001] The invention relates to the technical field of livestock and poultry breeding, in particular to a method for improving the reproductive performance of sows. Background technique [0002] Sows are the production tools of pig farms. The breeding goal is to increase the mating rate of sows, increase the number of healthy piglets, reduce the rate of weak piglets, and improve the milk quality of sows during lactation, thereby increasing the weaning weight of piglets and reducing the death rate. By improving the production performance of sows, the pig farm maximizes the benefits of sows, and then realizes a substantial increase in the overall comprehensive benefits of the pig farm. [0003] However, in the pig industry, insufficient intake of effective nutrients for lactating sows leads to a decline in reproductive performance of sows, which is a major problem faced by pig farms, mainly reflected in insufficient lactation, which affects the growth of piglet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02A23K50/30A23K10/20A23K10/30A23K20/147A23K20/163A23K20/26A23K20/174A23K10/37A23K20/20A23K10/18A23K10/12
CPCA01K67/02A23K10/12A23K10/18A23K10/20A23K10/30A23K10/37A23K20/147A23K20/163A23K20/174A23K20/26A23K20/30A23K50/30Y02P60/87
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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