EGGS RICH IN NUTRIENTS OF ALPHA-LINOLENIC ACID AND DHA, BREEDING METHOD OF LAYING HENS, AND FEED ADDITIVE

Abstract

An egg rich in nutrients of -linolenic acid and DHA, a breeding method of laying hens and a feed additive are provided. Laying hens are fed with a feed additive rich in -linolenic acid, after the feed additive are digested and absorbed by the laying hens, a part of the -linolenic acid is enriched in the egg yolk, and another part of the -linolenic acid is used as a precursor which is metabolized to be DHA by laying hen's biochemical process and thereby partially enriched in the egg yolk. Therefore, the contents of these two nutrients in eggs are greatly increased and reach their respective healthy supply levels, consumers can obtain stable and sufficient nutrition supply from the eggs. The invention can effectively solve a current situation of too low -linolenic acid and DHA contents in ordinary eggs while maintaining the nature of eggs as a consumer product.

Claims

1. An egg rich in nutrients of alpha-linolenic (-linolenic) acid and docosahexaenoic acid (DHA), comprising a content of the -linolenic acid no less than 0.4 grams per 100 grams of the egg, and a content of the DHA no less than 0.2 grams per 100 grams of the egg.

2. The egg rich in nutrients of -linolenic acid and DHA according to claim 1, wherein the content of the -linolenic acid is 0.42-0.55 grams per 100 grams of the egg, and the content of the DHA is 0.21-0.3 grams per 100 grams of the egg.

3. A feed additive for breeding a laying hen capable of producing an egg rich in nutrients of alpha-linolenic (-linolenic) acid and docosahexaenoic acid (DHA), wherein the feed additive comprises one selected from a group consisting of a linseed, a perilla seed, an eucommia seed, a linseed oil, a perilla seed oil, an eucommia seed oil, and mixtures thereof.

4. The feed additive for breeding a laying hen capable of producing an egg rich in nutrients of -linolenic acid and DHA according to claim 3, wherein a mass percentage of the linseed of the feed additive in a feed with the feed additive is 5.57, a mass percentage of the perilla seed of the feed additive in a feed with the feed additive is 3.84.8, a mass percentage of the eucommia seed of the feed additive in a feed with the feed additive is 5.57, a mass percentage of the linseed oil of the feed additive in a feed with the feed additive is 22.5, a mass percentage of the perilla seed oil of the feed additive in a feed with the feed additive is 1.51.9, and/or a mass percentage of the eucommia seed oil of the feed additive in a feed with the feed additive is 1.51.9.

5. The feed additive for breeding a laying hen capable of producing an egg rich in nutrients of -linolenic acid and DHA according to claim 3, wherein the feed additive is applied for a compound feed, the compound feed is made by a raw feed and the feed additive, and a ratio of the feed additive to the raw feed in the compound feed meets that a content of the nutrient of -linolenic in daily diet of one hen is no less than 1.5 grams.

6. A method for breeding laying hens capable of producing eggs rich in nutrients -linolenic acid and DHA, comprising: feeding laying hens each aged greater than 125 days by using a feed with the feed additive according to claim 3, starting to collect eggs on an 8th day after the feeding and continuing in a whole laying period of the laying hens.

7. The method for breeding laying hens capable of producing eggs rich in nutrients of -linolenic acid and DHA according to claim 6, wherein feeding laying hens each aged greater than 125 days by using a feed with the feed additive comprises: feeding 90-100 grams of the feed per day as per each one kilogram (1 kg) of the laying hens.

Description

DETAILED DESCRIPTION OF EMBODIMENTS

[0020] The present invention is described in detail below with reference to specific embodiments. In the following embodiments, 1 g is represented by 1 part by weight.

Embodiment 1

[0021] This embodiment provides a feed additive for cultivating eggs rich in -linolenic acid and DHA, the feed additive is a mixture of linseed, perilla seed, linseed oil, and perilla seed oil in a mass ratio of 5.5:3.8:2:1.5. The content of -linolenic acid in the feed additive is 30.44%, and the daily dosage of the feed additive is 5 g, that is, the daily dosage of -linolenic acid is 1.522 g.

[0022] Feed Ingredients Include:

[0023] 40 parts by weight of corn meal, 25 parts by weight of soybean meal, 2 parts by weight of fish meal, 5 parts by weight of bone meal, 5 parts by weight of cottonseed oil, 3 parts by weight of calcium additive, 2 parts by weight of a multivitamin, 0.1 parts by weight of a trace element, 0.005 parts by weight of a probiotic, and 5 parts by weight of a compound feed additive.

[0024] The calcium element additive is a mixture composed of calcium carbonate, calcium lactate and calcium bicarbonate according to a mass ratio of 2:1:1; the multivitamin is a mixture of vitamin A, vitamin D, vitamin E, vitamin K, and vitamin B12 according to a mass ratio of 1:2:1:2:1; the trace element is a mixture composed of ferrous sulfate, zinc sulfate, and sodium selenite according to a mass ratio of 1:1:1; the probiotic bacteria are a mixture of dry bacteria powders of three strains of Lactobacillus, Actinomycete, and Bifidobacterium according to a mass ratio of 1:1:1.

[0025] Further, a method for preparing the feed is provided, which includes the following steps:

[0026] (1) taking corn meal, soybean meal, fish meal, bone meal, calcium additive, multivitamins, trace elements, and compound feed additives according to the above weight, mixing them thoroughly to pulverize into fine powder; adding hot water which accounts for 50% of the mass of the mixed fine powder to the mixed fine powder and stirring well to obtain a wet material;

[0027] (2) taking the probiotics according to the above weight, adding warm water accounting for 1 times the mass of the probiotics, and stirring uniformly to obtain a probiotic solution;

[0028] (3) mixing the wet material in step (1) with the probiotic solution in step (2), adding the fat components in cottonseed oil and feed additives, and granulating and drying to obtain the feed.

[0029] The feed is used to feed the laying hens after 125 days of age, the nutritional eggs are extracted on the 8th day, and the whole process of the laying period is continued.

[0030] 90 g of standard feed was fed to the laying hen at 1 kg per day.

[0031] After testing, the content of -linolenic acid in the harvested eggs was 0.42 grams per 100 grams of the eggs, and the content of DHA was 0.21 grams per 100 grams of the eggs.

Embodiment 2

[0032] This embodiment provides a flaxseed rich in -linolenic acid as a feed additive for laying hens, with a daily dosage of 8.2 g. The content of -linolenic acid in the feed additive was 1.53 g.

[0033] Feed Ingredients Include:

[0034] 50 parts by weight of corn meal, 15 parts by weight of soybean meal, 8 parts by weight of fish meal, 2 parts by weight of bone meal, 15 parts by weight of cottonseed oil, 1 part by weight of calcium additive, 5 parts by weight of multivitamin, 0.02 parts by weight of trace elements, 0.01 parts by weight of probiotics, and 8.2 parts by weight of feed additive flaxseed.

[0035] The calcium element additive is a mixture composed of calcium carbonate, calcium lactate and calcium bicarbonate according to a mass ratio of 3:2:2; the multivitamin is a mixture of vitamin A, vitamin D, vitamin E, vitamin K, and vitamin B12 according to a mass ratio of 1:2:1:2:1; the trace element is a mixture composed of ferrous sulfate, zinc sulfate, and sodium selenite according to a mass ratio of 2:1:2; the probiotic bacteria are a mixture of dry bacteria powders of three strains of lactobacillus, actinomycete, and bifidobacteria according to a mass ratio of 1:2:2.

[0036] Further, a method for preparing the feed is provided, which includes the following steps:

[0037] (1) taking corn meal, soybean meal, fish meal, bone meal, calcium additive, multivitamins, trace elements, and compound feed additives according to the above weight, mixing them thoroughly to pulverize into fine powder; adding hot water which accounts for 60% of the mass of the mixed fine powder to the mixed fine powder and stirring well to obtain a wet material;

[0038] (2) taking probiotics according to the above weight, adding warm water accounting for twice the mass of the probiotics and stirring uniformly to obtain a probiotic solution;

[0039] (3) mixing the wet material in step (1) with the probiotic solution in step (2), adding cottonseed oil, and granulating and drying to obtain the feed.

[0040] The feed is used to feed the laying hens after 125 days of age, the nutritional eggs are extracted on the 8th day, and the whole process of the laying period is continued.

[0041] 90 g of standard feed was fed to the laying hen at 1 kg per day.

[0042] After testing, the content of -linolenic acid in the harvested eggs was 0.45 grams per 100 grams of the eggs, and the content of DHA was 0.21 grams per 100 grams of the eggs.

Embodiment 3

[0043] This embodiment provides a compound feed additive for raising eggs rich in -linolenic acid and DHA nutrients, which is composed of linseed, perilla seed, linseed oil, and perilla seed oil in a mass ratio of 7:4.8:2.5:1.9. The content of -linolenic acid in the feed additive is 31.06%, and the daily amount of the feed additive is 5 g, that is, the daily amount of -linolenic acid is 1.55 g.

[0044] The raw material components include:

[0045] 45 parts by weight of corn meal, 20 parts by weight of soybean meal, 5 parts by weight of fish meal, 3.5 parts by weight of bone meal, 10 parts by weight of cottonseed oil, 2 parts by weight of calcium additive, 3.5 parts by weight of multivitamins, 0.06 parts by weight of trace elements, 0.075 parts by weight of probiotics, and 5 parts by weight of compound feed additives.

[0046] The calcium element additive is a mixture composed of calcium carbonate, calcium lactate and calcium bicarbonate according to a mass ratio of 2.5:1.5:1.5:1.5; the multivitamin is a mixture of vitamin A, vitamin D, vitamin E, vitamin K, and vitamin B12 according to the mass ratio 1:2:1:2:1; the trace element is a mixture composed of ferrous sulfate, zinc sulfate, and sodium selenite according to a mass ratio of 1:1:1; the probiotic bacteria are a mixture of dry bacteria powders of three strains of Lactobacillus, Actinomycete, and Bifidobacterium according to a mass ratio of 1:1.5:1.5.

[0047] Further, a method for preparing the feed is provided, which includes the following steps:

[0048] (1) taking corn meal, soybean meal, fish meal, bone meal, calcium additive, multivitamins, trace elements, and compound feed additives according to the above weight, mixing them thoroughly to pulverize into fine powder; adding hot water which accounts for 55% of the mass of the mixed fine powder to the mixed fine powder and stirring well to obtain a wet material;

[0049] (2) taking probiotics according to the above weight, adding warm water accounting for 1.5 times the mass of the probiotics, and stirring them to obtain a probiotic solution;

[0050] (3) mixing the wet material in step (1) with the probiotic solution in step (2), adding the fat components in cottonseed oil and feed additives, and granulating and drying to obtain the feed.

[0051] The feed is used to feed the laying hens after 125 days of age, the nutritional eggs are extracted on the 8th day, and the whole process of the laying period is continued.

[0052] 95 g of standard feed was fed to the laying hen at 1 kg per day.

[0053] After testing, the content of -linolenic acid in the harvested eggs was 0.51 grams per 100 grams of the eggs, and the content of DHA was 0.23 grams per 100 grams of the eggs.

Embodiment 4

[0054] This embodiment provides a perilla seed rich in -linolenic acid as a feed additive for laying hens, with a daily dosage of 6.8 g. The content of -linolenic acid in the feed additive was 1.64 g.

[0055] Feed Ingredients Include:

[0056] 42 parts by weight of corn meal, 22 parts by weight of soybean meal, 4 parts by weight of fish meal, 4 parts by weight of bone meal, 8 parts by weight of cottonseed oil, 2.5 parts by weight of calcium additive, 4 parts by weight of multivitamin, 0.08 parts by weight of trace elements, 0.006 parts by weight of probiotics, and 6.8 parts by weight of feed additive.

[0057] The calcium element additive is a mixture composed of calcium carbonate, calcium lactate and calcium bicarbonate in a mass ratio of 2.2:1.8:1.2; the multivitamin is a mixture of vitamin A, vitamin D, vitamin E, vitamin K, and vitamin B12 according to a mass ratio of 1:2:1:2:1; the trace elements are a mixture consisting of ferrous sulfate, zinc sulfate, and sodium selenite in a mass ratio of 1.2:1.8:1.2; the probiotic bacteria are a mixture of dry bacteria powders of three strains of Lactobacillus, Actinomycete, and Bifidobacterium according to a mass ratio of 1:1.2:1.8.

[0058] Further, a method for preparing the feed is provided, which includes the following steps:

[0059] (1) taking corn meal, soybean meal, fish meal, bone meal, calcium additive, multivitamins, trace elements, and compound feed additives according to the above weight, mixing them thoroughly to pulverize into fine powder; adding hot water which accounts for 52% of the mass of the mixed fine powder to the mixed fine powder and stirring well to obtain a wet material;

[0060] (2) taking the probiotics according to the above weight, adding warm water accounting for 1-2 times the mass of the probiotics, and stirring uniformly to obtain a probiotic solution;

[0061] (3) mixing the wet material in step (1) with the probiotic solution in step (2), adding the cottonseed oil, and granulating and drying to obtain the feed.

[0062] The feed is used to feed the laying hens after 125 days of age, the nutritional eggs are extracted on the 8th day, and the whole process of the laying period is continued.

[0063] 90 g of standard feed was fed to the laying hen at 1 kg per day.

[0064] After testing, the content of -linolenic acid in the harvested eggs was 0.55 grams per 100 grams of the eggs, and the content of DHA was 0.21 grams per 100 grams of the eggs.

Embodiment 5

[0065] This embodiment provides a linseed oil rich in -linolenic acid as a feed additive for nutritional eggs, and the daily dosage is 3 g. The content of -linolenic acid in the -linolenic acid-rich linseed oil was 1.53 g.

[0066] Feed Ingredients Include:

[0067] 48 parts by weight of corn meal, 16 parts by weight of soybean meal, 6 parts by weight of fish meal, 3 parts by weight of bone meal, 12 parts by weight of cottonseed oil, 1.2 parts by weight of calcium additive, 4 parts by weight of multivitamins, 0.03 parts by weight of trace elements, 0.008 parts by weight of probiotics, and 3 parts by weight of feed additives.

[0068] The calcium element additive is a mixture composed of calcium carbonate, calcium lactate and calcium bicarbonate according to a mass ratio of 2.8:1:1.8; the multivitamin is a mixture of vitamin A, vitamin D, vitamin E, vitamin K, and vitamin B12 according to a mass ratio of 1:2:1:2:1; the trace element is a mixture composed of ferrous sulfate, zinc sulfate, and sodium selenite according to a mass ratio of 2:1:2; the probiotics are a mixture of dry bacteria powders of three strains of Lactobacillus, Actinomycete, and Bifidobacterium according to a mass ratio of 1:2:1.

[0069] Further, a method for preparing the feed is provided, which includes the following steps:

[0070] (1) taking corn meal, soybean meal, fish meal, bone meal, calcium additive, multivitamins, trace elements, and compound feed additives according to the above weight, mixing them thoroughly to pulverize into fine powder; adding hot water which accounts for 58% of the mass of the mixed fine powder to the mixed fine powder and stirring well to obtain a wet material;

[0071] (2) taking the probiotics according to the above weight, adding warm water accounting for 1.8 times the mass of the probiotics, and stirring uniformly to obtain a probiotic solution;

[0072] (3) mixing the wet material in step (1) with the probiotic solution in step (2), adding the fat components in cottonseed oil and feed additives, and granulating and drying to obtain the feed.

[0073] The feed is used to feed the laying hens after 125 days of age, the nutritional eggs are extracted on the 8th day, and the whole process of the laying period is continued.

[0074] 90 g of standard feed was fed to the laying hen at 1 kg per day.

[0075] After testing, the content of -linolenic acid in the harvested eggs was 0.45 grams per 100 grams of the eggs, and the content of DHA was 0.21 grams per 100 grams of the eggs.

[0076] The present invention is not limited to the above-mentioned preferred embodiments, and anyone can derive other various forms of products under the inspiration of the present invention. However, regardless of any changes in its shape or structure, any technical solution that is the same as or similar to the present application falls within the protection scope of the present invention.