JPH07107920A - Feed for raising chicken - Google Patents

Abstract

PURPOSE:To provide a feed rich in nutrients useful for chicken growth and improving egg quality and low in contamination of harmful bacteria, containing krill or extract therefrom. CONSTITUTION:The objective feed can be obtained by incorporating 0.001-50wt.% of krill (e.g. of Antarctic origin) or extract therefrom in a chicken feed. The feed obtained is rich in vitamin A, vitamin B, calcium, EPA, DHA, astaxanthin, phosphatidyl-choline, phosphatidyl-ethanolamine, chitin, etc.

Description

Detailed Description of the Invention

[001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chicken feed characterized by containing krill belonging to the order Krill and its extract, and more particularly, by incorporating inexpensive and safe krill or its extract. The present invention relates to a chicken feed containing abundant amino acids, vitamins, lipids and physiologically active substances useful for growing chickens and improving the quality of eggs.

[002]

2. Description of the Related Art To the conventional feed for chickens, vitamin A, vitamin B, calcium and other synthetic compounds have been added individually for the purpose of promoting growth, preventing stress and improving egg quality. However, these compounds have a problem that the cost is high and the cost is high.

In recent years, due to an increase in adult diseases and the like, cholesterol in eggs has become a problem, resulting in a decrease in egg consumption. However, ω-3 such as EPA or DHA, which is one of adult disease preventive agents, has been a problem. Attempts have been made to increase the EPA and DHA concentrations in eggs by feeding a chicken with a feed containing a fatty acid of a strain to improve the bad image of eggs and improve the quality of chicken eggs.

However, since EPA and DHA are expensive, a relatively inexpensive α-linolenic acid-containing material is currently added.

However, these have a problem that they cannot be expected to have sufficient effects as measures against adult diseases because they have slower physiological actions on humans than EPA and DHA.

On the other hand, the carotenoid natural pigments of plants such as paprika and red pepper were added to the feed for hens to improve the color tone of eggs, but the coloring effect was lower than that of synthetic astaxanthin. was there.

Synthetic astaxanthin has a high coloring effect but has a problem that it is expensive, and thus an inexpensive astaxanthin-containing substance has been demanded.

Recently, astaxanthin has been found to have strong antioxidative action, antiaging action, antiviral action and the like and has been attracting attention as a feed additive for chickens. However, since the price is high, a sufficient amount is added to the feed for chickens. Was difficult.

On the other hand, phospholipids such as phosphatidylcholine and phosphatidylethanolamine are presumed to have a good effect on the growth of chickens, but there is a problem that they cannot be added because they are extremely expensive.

Further, it has been attempted to add iodine, which has a function of promoting health to humans, to chicken feed in order to improve the quality of chicken eggs and differentiate products, but it has been tried to consume only iodine. There is a problem that it is not enough to attract the interest of the person and the health improving effect is low, and it has been desired to add a physiologically active substance other than iodine which promotes health.

In recent years, the problem of contamination of harmful proteins such as Salmonella from animal proteins has arisen. As a countermeasure against this, synthetic amino acids with little contamination of harmful bacteria have been added, but synthetic amino acids are expensive. Therefore, there is a problem that it cannot be added sufficiently.

[0112]

The problems to be solved are vitamin A, vitamin B, calcium, EPA, and D.
An inexpensive chicken feed containing abundant nutrients such as HA, astaxanthin, phosphatidylcholine, phosphatidylethanolamine, and chitin that are useful for improving chicken growth and egg quality, and containing few harmful bacteria. Is to provide.

[0113]

In view of such circumstances, the present inventors have searched for a clean natural raw material which is rich in the above nutrients and physiologically active substances and can be stably supplied at a low cost. A chicken feed was developed focusing on the fact that krill, which is one of the species, contains abundant nutrients and physiologically active substances necessary for chickens and eggs, and developed a chicken feed containing krill or an extract thereof. The present invention has been completed by discovering that it has an excellent effect on promoting the growth of chickens and improving the quality of egg quality.

That is, the present invention provides a chicken feed for promoting the growth of chickens and improving the quality of eggs, which is characterized by containing krill or an extract thereof. Less than,
The present invention will be described in more detail.

The krill or its extract to be mixed in the chicken feed of the present invention may be any of the krills belonging to the order Krill belonging to the soft net subweb or its extracts.

Examples of the krill to be added to the chicken feed of the present invention include Eufacia cea sperva (or Eufacia sperva), which is commonly called krill, Antarctic krill, or Krill, Eufacia cea nictifanes, Eufacia cerea nematosus ceris, and Euphacia cepa. is there.

Among the krills, Antarctic krill is particularly suitable as a krill to be incorporated in the feed for chickens of the present invention because it can be captured inexpensively in large quantities.

The krill of the present invention may be a frozen product, a cooked product, a steamed product, a dried product, a pulverized product or the like, and the processing method thereof is not limited. As an example of a krill processed product that can be added to the chicken feed of the present invention, a commercially available krill processed product can also be used, and specific examples thereof include a krill extract manufactured by Itano Frozen Co., Ltd., Eleven One, etc. But is not limited to this.

The krill or the extract thereof to be mixed in the chicken feed of the present invention includes vitamin A, vitamin B, calcium, EPA, DHA, lysine, leucine, isoleucine, phenylalanine, tyrosine, threonine, valine, methionine, cystine, Tryptophan, astaxanthin, phosphatidylcholine, phosphatidylethanolamine, may contain one or more nutrients or bioactive substances among substances selected from chitin, but preferably contains all of the above substances Is good.

The krill extract of the present invention is a solvent extract of krill with water or an organic solvent such as methanol, ethanol, ethyl acetate, acetone or n-hexane, or a dried product thereof.

As this krill extract, a krill solvent extract obtained by subjecting a krill solvent extract to hydrogenation or hydrolysis with an enzyme or a catalyst can be used.

The krill extract of the present invention is obtained by separating the krill extract from the krill extract using an ultrafiltration membrane, RO membrane, dialysis membrane, filter paper, cellulose pus, glass filter or the like, activated carbon silica gel, activated clay, It is also possible to use those which have been purified by adsorption using an adsorbing substance such as silicic acid or activated alumina or by using a liquid chromatogram.

The krill or the extract thereof of the present invention is added to chicken feed in the range of 0.001% to 50% by weight based on the dry feed weight of krill.

The method of adding the krill or the extract thereof of the present invention to the feed is not particularly limited, but if uniform addition is expected, it is sufficiently stirred and mixed by a mixer with other raw materials constituting the feed.

When krill or its extract is blended in an amount of 1% by weight or less, it is mixed with a small amount of a raw material such as vitamin premix mixed in feed with a mixer and then the vitamin premix is added by a usual method. Etc. can also be mixed with the feed.

The feed for chickens of the present invention comprises chicken breeds, growing seasons,
It can be used for all existing chickens without distinction between meat and egg collection.

[Action] The krill or krill extract to be added to the chicken feed of the present invention contains vitamin A and vitamin B.
₂ , calcium, EPA, DHA, lysine, leucine,
Isoleucine, phenylalanine, tyrosine, threonine, valine, methionine, cystine, tryptophan,
Since it is rich in substances selected from astaxanthin, phosphatidylcholine, phosphatidylethanolamine, and chitin, it can be added to existing chicken feeds to promote growth of chickens and improve egg quality.

Further, the krill of the present invention is a clean nutritional raw material containing less harmful bacteria since it is captured near the cleanest polar waters on the earth and transported to Japan in a form such as frozen storage. Therefore, it is possible to prevent the chicken from being contaminated with Salmonella or the like.

Since the krill of the present invention has abundant resources and can be obtained in large quantities at low cost, the raw material cost of the feed for chicken of the present invention can be kept low.

The present invention will be described in more detail by showing Examples and Comparative Examples below, but the present invention is not limited to these Examples and Comparative Examples.

[031]

Example A frozen krill product was finely pulverized with a mixer and dried with a freeze dryer to obtain a pale red krill powder. This krill powder was uniformly mixed according to the formulation of the test section of Table 1 to produce the chicken feed of the present invention.

[0332]

[Table 1]

[Comparative Example] The chicken feed of the example of the present invention was used as a test group, and the feed obtained by removing only krill powder from the formulation of the example was used as a control group to evaluate the effect of the chicken feed of the present invention by the following method. confirmed. The method for producing the feed in the control plot was the same as that in the test plot, and the composition of the feed is shown in Table 1.

Five-week-old five-week-old white Leghosi hens were divided into two groups of 1,000 birds each, and the diets of the test group and the target group were fed for 4 months to measure the weight gain and the feed effect.

Also, the spawning rate of eggs laid during the two months from the 4th to the 6th month after the start of the test, the egg quantity, the feed requirement rate, the food intake,
Egg yolk color, howe unit, astaxanthin content in egg, total carotenoid content in egg, EPA and DH in egg
The A content was measured, and a simple average value for each was determined and summarized in Table 2.

The measurement value measured in this comparative test was obtained by the following formula. (Oviposition rate)… [Number of eggs] ÷ (Number of chicken wings). (Egg weight) = (Total weight of eggs) / (Total number of eggs). (Feed request rate) = (Total feed intake) ÷ (Total egg weight) (Feeding amount) = (Total feed intake) ÷ (Number of chickens x number of test days) Also, the yolk color is Roche's York color fan The average value of the values determined by

[037]

[Table 2]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Sumi Kajioka, 5th day, 19 Sumiyoshihama-cho, Higashinada-ku, Kobe-shi, Hyogo Prefecture Central Research Institute (72) Inventor Akira Kajie 19 Sumiyoshihama-cho, Higashinada-ku, Kobe-shi, Hyogo Address: 5th, Central Research Institute of Wasa Sangyo Co., Ltd. (72) Inventor Osamu Suetsugu 3-3, Tsukamoto-dori, Hyogo-ku, Kobe-shi, Hyogo 18 Daiwa Kasei Co., Ltd.

Claims (1)

[Claims] 1. A chicken feed containing krill or an extract thereof.