JP2834005B2 - Method for producing edible bird eggs and feed for egg collection - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing edible bird eggs and a feed for egg collection.

[0002]

2. Description of the Related Art In general, chicken eggs, quail eggs, duck eggs, duck eggs and the like are used as edible bird eggs. In order to efficiently breed female parent birds that collect such edible bird eggs, predetermined components are used. Formulated feed is used.

[0003] For example, examples of the composition of feed used for poultry raising (for adult chickens) are corn 0-30% (% by weight, the same applies hereinafter), wheat 20-50%, rice bran 7.5-12%,
Bran 14.5-19.5%, soybean meal 6-10%, fish meal 8-10%, carbonated lime 3-5%, salt 0.4-0.
6% is common.

[0004] Among the above ingredients, fish meal (fish meal, fish oil) contains polyunsaturated fatty acids constituting the fat of fish, among which human blood such as eicosapentaenoic acid and docosahexaenoic acid are contained. It also contains compounds that prevent coagulation and are effective in preventing arteriosclerosis.

[0005]

However, polyunsaturated fatty acids such as eicosapentaenoic acid (hereinafter abbreviated as EPA) or docosahexaenoic acid (hereinafter abbreviated as DHA) are efficiently contained in bird eggs. It is difficult to transfer into the living body (egg) well. Because
This is because, for example, a feed containing a large amount of polyunsaturated fatty acids in combination with fish meal has a problem that the taste of birds is reduced, that is, the feeding efficiency is inferior, and the spawning rate is also reduced. In this case, efficient transfer of EPA into the egg is due to DH
It is more difficult than in the case of A.

Further, when fish oil is added to bird food and the taste of the laid eggs is examined, not only polyunsaturated fatty acids but also fish oil odor is transferred into the eggs. There is also the problem that good edible eggs cannot be produced.

[0007] Linoleic acid and α-linolenic acid, which can induce EPA and DHA in vivo, are included in the feed ingredients other than the above-mentioned fish cakes. Plants such as perilla and sesame are included. Or vegetable oils squeezed therefrom are known.

[0008] However, none of these are in accordance with the palatability of birds, and vegetable oils are rapidly oxidized by oxygen in the air.
The amount of metabolic synthesis of HA was extremely small.

Accordingly, an object of the present invention is to solve the above-mentioned problems, and to provide a method for producing edible bird eggs in which an odorous component that inhibits taste is not produced in eggs, and eicosapentaenoic acid is contained in eggs. The purpose is to include a large amount of docosahexaenoic acid. In addition, the feed for egg collection used at that time is to have high palatability of birds and high spawning efficiency.

[0010]

In order to solve the above-mentioned problems, the present invention provides a method for producing edible bird eggs in which a female bird is fed linseed and lays eggs containing eicosapentaenoic acid or docosahexaenoic acid or both. It was a method.

[0011] In addition, a feed for egg collection is obtained by adding flaxseed to a feed for breeding birds containing plant material as a main component.

[0012]

In the method for producing edible bird eggs according to the present invention, birds are allowed to ingest flaxseed containing a large amount of polyunsaturated fatty acids such as linolenic acid, linoleic acid and oleic acid and having a low odor component. Useful components contained in the linseed and eicosapentaenoic acid, docosahexaenoic acid, or both, which are metabolic synthesis components in birds starting from this component, and contain less odorous components. And produce high quality edible eggs.

[0013] Further, as described above, flaxseed has a low odor component, and thus the blended feed to which flaxseed is added is a high-preference palatability for birds, and can be an egg-collecting feed that can enhance egg-laying efficiency.

[0014]

The birds in the present invention are not particularly limited as long as they can collect edible eggs, and include, for example, chickens, quails, ducks and ducks.

The linseed used in the present invention (English name: Flax)
seed, Linseed are seeds of flax (Linum usitatissimum), which are annual plants of the flax family. The surface of flaxseed is brown, glossy, flat, oval, 4-6 mm long, has little odor, and has a mild oily and mucous taste.

As linseed, dried seeds having good preservability can be used, and usually, the loss on drying is about 6.8%. The component of mature flaxseed has an ash content of 3.7
% (Acid-insoluble ash content 0.2%), fatty oil 25.0 to 45.
0%, such fatty oils are composed of glycerides of linolenic, linoleic and oleic acids.

The feed for birds containing plant matter as a main component used in the present invention is preferably a feed containing a plant having high palatability for birds from which the above-mentioned edible eggs can be collected. It does not limit the types of plants that can be used.

Composition example of feed ingredients other than linseed (for adult chicken)
As described above, corn 0-30%
(Wt%, the same applies hereinafter), wheat 20-50%, rice bran 7.5-12%, bran 14.5-19.5%, soybean cake 6-10%, fish cake 8-10%, carbonated lime 3 ~ 5%,
A salt of 0.4 to 0.6% or the like can be employed.

[Example 1] As a feed for quail, yellow corn, soybean meal, milo, white fish meal, fish soluble, bran, alfalfa meal, animal fat and oil, 95% by weight of a mixture of salt, 5%
A weight percent of linseed was added and mixed to produce a diet for egg collection.

[0020] The obtained egg-collecting feed was used for adult quail females 15
The wings were fed at an average rate of 18 g / wing / day for 14 consecutive days, the egg laying rate after 14 days, α-linolenic acid in the eggs, EP
The content of each of A and DHA (the ratio of each component in the total polyunsaturated fatty acids by gas chromatography, shown in% in Table 1) was determined, and the results are shown in Table 1.

[0021]

[Table 1]

[Comparative Example 1] In the diet for egg collection used in Example 1, 5% by weight of perilla oil and sesame seeds 5 were used instead of linseed.
An egg-collecting feed was prepared in exactly the same manner as in Example 1 except that the amount by weight was added.

The obtained diet for egg collection was fed to 15 adult quail females under exactly the same conditions as in Example 1, and the egg laying rate after 14 days, α-linolenic acid, EPA, and DHA in the eggs were determined. The content was determined, and the results are shown in Table 1.

Comparative Example 2 A diet for egg collection was prepared in exactly the same manner as in Example 1 except that flaxseed was not added to the diet for egg collection used in Example 1.

The resulting egg-collecting feed was fed to 15 adult quail females under exactly the same conditions as in Example 1, and the egg-laying rate after 14 days, α-linolenic acid, EPA, and DHA in the eggs, respectively. The content was determined, and the results are shown in Table 1.

In the production method of Comparative Example 1, the feeding efficiency was inferior, and as is clear from the results in Table 1, the egg production rate was 69.
It was low at 7%.

On the other hand, in the production method of Example 1 in which a feed containing linseed was fed, α-linolenic acid and E
The contents of PA and DHA were sufficient, and the spawning rate was almost as high as that of Comparative Example 2 (blank).

Example 2 5% by weight of linseed was added as a diet for chicken to 95% by weight of a mixture of yellow corn, soybean meal, fish meal (brown fish meal), defatted rice bran, rusan meal, salt and calcium carbonate. The mixture was mixed to produce a diet for egg collection.

The obtained egg-collecting feed was applied to 12 adult female chickens (white leghorn) at a rate of 100 g / bird / day.
Feeding for 4 consecutive days, egg laying rate after 14 days, α-linolenic acid per egg (60 g / mean), EPA, DH
A, cholesterol, and lecithin content (m
g) was determined, and the results are shown in Table 2.

[0030]

[Table 2]

Comparative Example 3 An egg-collecting food was prepared in exactly the same manner as in Example 2 except that flaxseed was not added to the egg-collecting food used in Example 2.

The obtained egg-collecting feed was fed to 12 female chicks (white leghorn) under exactly the same conditions as in Example 2, and the egg-laying rate after 14 days, α-linolenic acid in the egg,
The respective contents of EPA, DHA, cholesterol, and lecithin were determined, and the results are also shown in Table 2.

As is evident from the results in Table 2, the chicken egg of Comparative Example 3 produced by feeding the food without the addition of linseed produced no EPA in the egg.

On the other hand, in the production method of Example 2 in which a feed containing linseed was fed, α-linolenic acid, E
The results showed that the contents of PA and DHA were sufficient, the cholesterol level was low, and the spawning rate was high.

[Comparative Examples 4 to 7] Egg-collecting diets were prepared in exactly the same manner as in Example 2 except that flaxseed was not added to the egg-collecting diet used in Example 2 (Comparative Example 4). .

In the diet for egg collection used in Example 2, 3% by weight, 4% by weight or 5% by weight of fish oil (sardine oil) was added without adding linseed (Comparative Examples 5, 6, and 7). Except for the above, an egg-collecting feed was prepared in exactly the same manner as in Example 2.

Each of the thus obtained eggs for feeding eggs was fed to 12 adult chickens (white leghorn species) under the same conditions as in Example 2 and EPA or DHA 14 days later.
Was determined (mg / piece), and the results are shown in Table 3.

[0038]

[Table 3]

As is clear from the results in Table 3, when fish oil was added to the feed, eggs containing no EPA were obtained.

Further, a sensory test was conducted on the chicken eggs obtained in the above Examples and the chicken eggs obtained in Comparative Example 7 with seven adults as panelists. In addition, in the sensory test, taste was examined in a state where two raw chicken eggs were each stirred.
The evaluation (point) ratio (%) was evaluated for three grades of delicious, ordinary, and unsavory. In the odor test, the evaluation (point) ratio (%) for the presence or absence of fish oil odor was examined. The results are shown in Table 4.

[0041]

[Table 4]

As is clear from the results in Table 4, the chicken eggs obtained using the diet of Comparative Example 7 to which 5% of fish oil was added,
The smell of fish oil was felt by almost all panelists.
The chicken eggs obtained using the feed of No. 1 had no fish oil smell at all, and the taste was excellent.

[0043]

[Effect] As described above, the present invention provides a method for producing edible bird eggs in which linseed is ingested by female birds, so that odorous ingredients that inhibit taste are not contained in eggs.
Moreover, there is an advantage that edible bird eggs containing a large amount of eicosapentaenoic acid and docosahexaenoic acid useful for the human body in eggs are obtained.

Further, the blended feed to which linseed is added has the advantage that birds have a high palatability and the feeding efficiency and the spawning rate are low because the odor component is small.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tokio Fujii 5-4 Yasuda-dori, Showa-ku, Nagoya-shi, Aichi Prefecture (56) References JP 4-76650 (JP, B2) (58) Field (Int.Cl. ⁶ , DB name) A23K 1/18 A23K 1/14 A23K 1/10

Claims (2)

(57) [Claims] 1. A method for producing an edible bird egg, which comprises causing a bird female to ingest linseed as a seed and laying eggs containing eicosapentaenoic acid or docosahexaenoic acid or both. 2. A bird feed comprising plant matter as a main component,
An egg-collecting feed to which linseed , a seed, is added.