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Method for raising dairy cattle to improve content of conjugated linoleic acid in milk

A technology of conjugated linoleic acid and dairy cows, which is applied in animal feed, animal feed, additional food elements, etc., can solve the problem that the product only has and does not significantly increase the content, and achieves the reduction of milk fat content, significant application value, and enhanced transformation. Effect

Active Publication Date: 2006-11-29
INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the content of CLA in milk can be increased by improving the feed formula, but only by increasing the content of linolenic acid and linoleic acid in the feed to increase the content of conjugated linoleic acid (CLA) in milk, the result is that it can only increase (9c, 11t) -CLA content, while another isomer (10t, 12c)-CLA with more significant biological efficacy did not significantly increase its content, resulting in products with only partial efficacy of CLA

Method used

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  • Method for raising dairy cattle to improve content of conjugated linoleic acid in milk
  • Method for raising dairy cattle to improve content of conjugated linoleic acid in milk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1, dairy cow is raised

[0017] 1. Screening of cattle for production (from Mengniu Ausia Ranch)

[0018] Breed: Australian Holstein

[0019] Lactation stage: early and late lactation to mid-lactation, that is, 60 to 210 days after delivery

[0020] Milk production: ≥7500kg / year

[0021] Weight: 540±20kg

[0022] CLA background content in milk fat: ≥5.5mg / g milk fat

[0023] Cow age: more than three years old, between three and six lactation periods

[0024] 2. Breeding environment

[0025] 1) Drinking water: Provide sufficient and clean drinking water inside and outside the house, and control the water temperature at 21-27°C; at the same time, properly put coarse materials and mineral salts in the playground;

[0026] 2) Cowshed temperature: 10-18°C;

[0027] 3) Lighting: white fluorescent lamps are used for lighting, so that the day and night are cycled according to the ratio of 16 hours and 8 hours to increase the light;

[0028] 4) Exercise: Stren...

Embodiment 2

[0047] Example 2, the functional experiment of milk containing conjugated linoleic acid of the present invention

[0048] 1. Lipid-lowering efficacy test

[0049] Take the CLA milk of Example 1 as a sample

[0050] 1.1 Test animals

[0051] Male secondary Kunming mice (Yidongzi No. 01-3001), aged three weeks, weighing 12.7±1.0 g, 50 mice. Provided by the Experimental Animal Breeding Farm, Institute of Medical Experimental Animals, Chinese Academy of Medical Sciences. The experimental rats were raised in cages with a humidity of 50-60% and a temperature of 18-22° C., 4 rats per cage, free to eat standard basic pellet feed, and free to drink water.

[0052] 1.2 Dose design

[0053] The recommended dosage for the human body of this sample is 500g / 60kg per day. This experiment did not set up three dosage groups of low, medium and high dosage, but only used the same intake dosage, and the blank control group was fed with ordinary sterilized milk.

[0054] 1.3 Administration of...

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Abstract

A method for raising milk cow to increase the content of conjugated linoleic acid in milk features that the forage is optimized to increase the contents of linolenic acid and linoleic acid, and the mixed conjugated linoleic acid is quantitatively filled to milk cow.

Description

technical field [0001] The invention relates to a dairy cow feeding method for increasing the content of conjugated linoleic acid in milk. Background technique [0002] Conjugated linoleic acid (CLA) is the general term for isomers of octadecyl-conjugated dienoic acid. It is a secondary derivative of fatty acid linoleic acid. Its common feature is that two carbon-carbon double bonds pass directly through one carbon - Carbons linked by single bonds, not separated by methylene groups. In conjugated linoleic acid (CLA), the two double bonds can have various positions on the carbon chain, mainly carbon 8-carbon 10, carbon 9-carbon 11, carbon 10-carbon 12 and carbon 11-carbon 13 (the carbon number of the two double bonds on the carbon chain), etc., there are cis (cis)-cis (cis), cis (cis)-trans (anti), trans (anti)- on the carbon-carbon double bond There are 4 conformational isomers including cis (cis) and trans (anti)-trans (anti), so the types of CLA are very rich (16 types)....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02A23K1/18A23K1/16A23K10/18A23K10/22A23K10/24A23K10/26A23K10/30A23K10/37A23K20/105A23K20/158A23K20/174A23K20/20A23K20/22A23K20/24A23K50/10
CPCY02P60/87
Inventor 母智深张帆张刚
Owner INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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