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Plant extract feed additive for improving lactation performance of sows and application thereof

An extract and extraction tank technology, applied in the field of plant extract feed additives, can solve the problems of drug resistance and drug residues, and achieve the effects of improving lactation ability and milk quality, improving production efficiency, and improving health

Pending Publication Date: 2019-02-22
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the extensive use of antibiotics, the problems of drug resistance and drug residues are becoming more and more serious. Feed additives become a new direction to promote the healthy development of animal husbandry

Method used

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  • Plant extract feed additive for improving lactation performance of sows and application thereof
  • Plant extract feed additive for improving lactation performance of sows and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A plant extract feed additive for improving the lactation performance of sows, prepared by the following method:

[0023] (1) The milk thistle seeds are cold pressed to remove oil, dried in an oven at 100° C. for 30 minutes, taken out and pulverized, and passed through a 60-mesh sieve to obtain dried milk thistle powder.

[0024] (2) Add milk thistle powder and 60% ethanol solution to the ultrasonic extraction tank at a ratio of 1:20 (g / mL) to liquid, extract for 30 min at an extraction temperature of 60°C, filter under reduced pressure, and filter the filtrate Centrifuge for 40 minutes under the condition of 3000r / min, take the supernatant, and add the filter residue into 60% ethanol solution, add it into the ultrasonic extraction tank according to the ratio of material to liquid 1:25 (g / mL) for extraction for 20min, The two filtrates were collected and combined.

[0025] (3) The filtrate was concentrated, dried in vacuo and crushed through a 60-mesh sieve to obtain t...

Embodiment 2

[0027] Application of milk thistle extract in the preparation of feed additives:

[0028] 1. Experimental animals and experimental design

[0029] Select 100 grown-up binary multiparous sows with 3 to 4 parity, similar body weight and body condition, and 85 days of mating gestation with normal reproduction in the past, and divide 100 sows into control group according to random block group (feeding basic day grain) and 4 test groups (add milk thistle extract 250g / t, 300g / t, 350g / t, 400g / t respectively on the basis of the control group diet, respectively named as: test group 1, test group 2, Experimental group 3 and experimental group 4), 20 pigs in each group, 5 replicates in each, 4 pigs in each replicate, began to enter the formal test on the 85th day of gestation of sows, and the estrus interval after weaning (weaning age 21 days) The period ends in 10 days. The test period is 61 days. The mating methods, feeding management and immunization procedures of all experimental ...

Embodiment 3

[0042] A plant extract feed additive for improving the lactation performance of sows, including: 30 parts of milk thistle extract, 25 parts of Tongcao extract, 20 parts of Wangbuliuxing extract, 15 parts of angelica extract, and astragalus extract 10 parts, all above are parts by weight.

[0043] The preparation method of described Tongcao extract is:

[0044] (1) Dried the grass in an oven at 100°C for 40 minutes, took it out and pulverized it, and passed it through a 60-mesh sieve to obtain dried grass powder.

[0045](2) Put the powdered grass powder and 70% ethanol solution into the ultrasonic extraction tank at a ratio of 1:30 (g / mL) to the material and liquid, extract for 30 min at an extraction temperature of 60° C., filter under reduced pressure, and place the filtrate at 3000 r Centrifuge under the condition of 1 / min for 30 minutes, take the supernatant, add the filter residue into 70% ethanol solution, add it into the ultrasonic extraction tank for 30 minutes accord...

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Abstract

The present invention belongs to the field of feed additives and particularly discloses a plant extract feed additive for improving lactation performance of sows and an application thereof. The applicant finds that a use of a silybum marianum extract in the feed additive can greatly improve the lactation performance, reproductive performance and immunity of the sows. The feed additive prepared bycompounding the silybum marianum extract with a ricepaper pith extract, a cowherb seed extract, a Chinese angelica extract and a radix astragali extract enables plant active ingredients to better exert medicinal and nutritional dual effects, satisfies nutritional needs of the lactating sows, is good in palatability, improves immunity, milk production amount and milk quality of the sows, at the same time is less in toxic and side effects, free of drug resistance and residues, etc., and reducez side effects on food safety.

Description

technical field [0001] The invention belongs to the field of feed additives, in particular to a plant extract feed additive for improving the lactation performance of sows and its application. technical background [0002] Sow feeding is one of the important links in pig production, and sow milk production is an important indicator of sow production performance. The key problems that currently plague the production of breeding pigs are the low lactation ability and poor milk quality of sows, resulting in nutritional deficiencies, high diarrhea rates, slow growth, low piglet survival rates, weaning litter weight and small individual body weight. According to data, compared with the lactation performance of foreign sows, the lactation ability of most sows in China is only about 70% of their potential. The improvement of reproductive efficiency has a promoting effect, which can further reduce costs and improve economic benefits. However, due to the extensive use of antibiotic...

Claims

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Application Information

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IPC IPC(8): A23K50/30A23K10/30
CPCA23K10/30A23K50/30
Inventor 黄飞若姚卫磊王同心贺琼玉邵亚飞
Owner HUAZHONG AGRI UNIV
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