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Chicken feed and chicken breeding method

A feed and egg technology, applied in animal feed, animal feed, application, etc., can solve the problem of low efficiency of long-chain ω-3PUFA, and achieve the effect of easy promotion, simple use and harmless feed

Inactive Publication Date: 2015-03-04
浙江艾格生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wang Kun (2000) of the Chinese Academy of Agricultural Sciences’ doctoral dissertation found that increasing the dietary flaxseed level (10% and 15%) rapidly reduced egg yolk fatty acid ω-6 / ω-3 (P<0.05), and significantly increased egg yolk fatty acid The level of α-linolenic acid (ALA) in egg yolk (P<0.05), but the efficiency of linolenic acid to synthesize long-chain ω-3PUFA (EPA, DHA) in egg yolk is very low

Method used

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  • Chicken feed and chicken breeding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Determination of the optimal week age for collection of high DHA eggs

[0019] 25-week-old laying hens were used in laying hen farms, fed a diet of 8% expanded flaxseed and 3% fish oil, and were fed on 12 days, 29 days, 45 days, 60 days, 72 days and 87 days after feeding, respectively. The eggs were collected on the first day, and the contents of DHA were determined to be 1.50%, 1.90%, 3.60%, 3.40%, 1.81% and 1.76%, respectively. The results showed that DHA increased with the time of feeding the formula containing flaxseed. It increased significantly, and reached a peak at 45 days of feeding and maintained to 72 days, until it began to decline at 87 days of feeding. Therefore, it is determined that the best egg collection time for producing high-DHA eggs is 4 weeks to 10 weeks after feeding.

Embodiment 2

[0020] Embodiment 2: the feed preparation technology of producing high phospholipid type, low cholesterol eggs

[0021] Select squid oil rich in DHA, the DHA content is 14.0-17.0%.

[0022] Imported Canadian linseeds are used, the crude fat content is 34-37%, and the linoleic acid content exceeds 15%. The linseeds are processed by wet puffing.

[0023] A total of 288 laying hens with a laying age of about 25 weeks were selected in the experiment, and they were randomly divided into 4 groups, with 6 repetitions in each group, and 12 laying hens in each repetition.

[0024] The test grouping is the control group: the conventional formula of the laying hen farm is adopted;

[0025] Experiment 1 group: add 10% flaxseed in the feed formula;

[0026] Experiment 2 group: 10% flaxseed and 5% high DHA fish oil were added to the feed formula;

[0027] Experiment 3 added 1kg of 10% fucoxanthin per ton of feed on the basis of experiment 2. Fucoxanthin can stimulate the liver to produce...

Embodiment 3

[0033] Embodiment 3: Feeding and result determination

[0034] 25-week-old laying hens were used in laying hen farms to feed the above-mentioned diet, and eggs with high DHA were collected from 4 to 10 weeks after feeding.

[0035] Eggs were collected on the 45th day of the experiment and the contents of DHA, EPA and cholesterol in the eggs were determined. The specific measurement results are shown in Table 2.

[0036] DHA, EPA and cholesterol determination result in the egg that table 2 test obtains

[0037]

[0038] It can be seen from the table that the DHA content is 1.60% when flaxseed is added separately to the basic formula, indicating that laying hens can convert a-linolenic acid into DHA in the body; DHA squid oil, the DHA content increased significantly, and the DHA content in eggs can be increased to 289mg / 100g, indicating that the transformation of DHA only by a-linolenic acid in flaxseeds is limited, which is consistent with the research results of Ferrier (...

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Abstract

The invention discloses a feed for producing eggs with high phospholipid type docosahexenoic acid (DHA) and low cholesterol, and the application of the feed in breeding of laying hens. The feed is characterized by being prepared by evenly mixing the following raw materials in parts by weight: 40-45 parts of corn, 20-25 parts of bean pulp, 6.8-8.8 parts of bran, 5 parts of mountain flour, 5 parts of premix, 10 parts of Canada flaxseed, 5 parts of squid oil, 3 parts of aloe oil, 0.05-0.08 part of ferrous gluconate and 0.1-0.15 part of a micro-nutrient additive.

Description

technical field [0001] The invention relates to the technical field of laying hen feed preparation, and mainly relates to a feed preparation technology capable of producing eggs with high phospholipid type DHA and low cholesterol. Background technique [0002] DHA, the scientific name docosahexaenoic acid, is an important member of the omega-3 unsaturated fatty acid family. It is a very important polyunsaturated fatty acid in the human body and an important component of the brain and retina, especially for the intelligence and vision of the fetus. It is so important for development that it is called "brain gold". When people consume enough α-linolenic acid and not too much omega-6 fatty acid, the amount converted into EPA and DHA can only guarantee normal physiological function and health, and the conversion efficiency is extremely limited, generally only Can rely on external sources to supplement. [0003] The DHA that exists in nature can be divided into triglyceride typ...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/14A23K1/16A23K1/00A01K67/02
Inventor 姚云昕
Owner 浙江艾格生物科技股份有限公司
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