JP2003180260A - Feed composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a selenium-containing feed composition having a small difference in intake with livestock individuals and capable of healthfully increasing body weight of an animal such as livestock or pets, a method for healthfully increasing the body weight of the animal such as the livestock or pets and a method for prophylaxis and/or treatment of symptoms caused by oxygen disorder due to selenium deficiency of the animal such as the livestock or pets. <P>SOLUTION: This feed composition is obtained by formulating forage crops absorbing and accumulating selenium in plant bodies. The method for healthfully increasing the body weight of the animal comprises supplying the feed composition to the animal. The method for prophylaxis and/or treatment of the symptoms caused by the oxygen disorder due to the selenium deficiency in the animal comprises supplying the feed composition to the animal. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a feed composition,
More specifically, the present invention relates to a feed composition which is given to animals such as livestock and pets so as to gain a healthy weight.

[0002]

BACKGROUND ART Selenium is one kind of trace essential minerals, and several kinds of selenium compounds such as glutathione peroxidase are known in mammals. Glutathione peroxidase and the like have a peroxide treatment action in vivo, and play an important role in preventing oxygen damage such as inactivation of biomembrane enzymes and denaturation of proteins and nucleic acids. When selenium is deficient, animals such as livestock and pets show symptoms such as arteriosclerosis, carcinogenesis, aging, and weakened immunity due to oxygen damage. As a method of preventing these, it has been performed so far to administer a feed containing an inorganic selenium compound and an organic selenium compound such as selenium-containing yeast to livestock. However, with this method, it is difficult to reliably prevent the above-mentioned symptoms due to selenium deficiency because there are individual differences in the intake amount of the selenium compound. The reason is that the taste of the feed changes depending on the inorganic selenium compound or the organic selenium compound added to the feed, and the preference of the livestock varies depending on the individual animal. Since it is not always easy to mix the selenium evenly in it, the amount of selenium ingested also varies from this point.

[0003]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a selenium-containing feed composition having a small difference in the intake amount between individual animals such as livestock and pets. Another object of the present invention is to provide a selenium-containing feed composition that healthfully weights animals such as livestock and pets. Still another object of the present invention is to provide a method for healthy weight gain of animals such as livestock and pets. Still another object of the present invention is to provide a method for preventing and / or treating the symptoms caused by oxygen injury due to selenium deficiency in animals such as livestock and pets.

[0004]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventors have found that a feed containing a feed crop containing organic selenium in which selenium is efficiently absorbed and accumulated in a plant. The present invention has been completed by discovering that when animals are fed to animals such as livestock and pets, there is little difference in the intake amount between individual animals and the weight of the animals can be increased in a healthy manner. The present invention provides a feed composition comprising a feed crop containing selenium absorbed and accumulated in a plant. The present invention also provides
Provided is a method for healthy weight gain of an animal, which comprises feeding the animal a feed composition containing a feed crop in which selenium is absorbed and accumulated in a plant. The present invention further prevents and / or treats a condition caused by oxygen injury due to selenium deficiency in an animal, which comprises feeding the animal a feed composition containing a feed crop that absorbs and accumulates selenium in the plant. Is to provide a way to do.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below. In the present invention, as feed crops that absorb and accumulate selenium in plants, legumes such as legumes, grasses, barley, turnips, beets, sweet potatoes, rutabaga, rape, comfrey, sunflower, pumpkin, etc. , Sasa, Lotus japonicus, grass grass, Japanese pampas grass, medakahagi, yahasou, malubayahasou and other wild grasses and aquatic plants. Among these, particularly preferable are legumes, grasses, wheats, and aquatic plants, which have a large amount of selenium absorbed and accumulated at the time of cultivation and collection and which are highly ingested due to the excellent palatability of livestock.

[0006] Examples of legumes include red clover, white clover, arsic clover, crimson clover,
Subterranean clover, alfalfa (purple), astragalus, vetch, ginnemu, desmodium, cyratro, styro, centro, crotalaria,
Birdsfoot trefoil and the like can be mentioned. For grasses, Orchardgrass
Italian grass, perennial ryegrass, smooth brome glass, lead canary glass, Kentucky blue grass (Nagahagusa), behia glass, daris glass, rose glass, colored guinea glass, guinea glass, bermuda glass, giant star glass, napier glass, weeping love glass, Examples include timothy (timothy frog), tall fescue, meadow fescue, red top and giant millet.

Examples of grasses of barley family are barley, oats, rye, barley, wheat, finger millet, millet,
Theosinto, pearl millet, Sudan grass, sorghum, corn, etc. can be mentioned. Examples of aquatic plants include water plants of water mallow family such as water hyacinth and water plants of duckweed family such as duckweed, duckweed and duckweed.

In the present invention, the method of absorbing and accumulating selenium in the feed crop is not particularly limited, but examples thereof include a method of cultivating the feed crop in soil or a culture solution containing an inorganic selenium compound. It is easy to control the concentration of selenium,
Hydroponics with a selenium-containing culture solution is preferable because there are few problems of contamination and disposal. The selenium-containing culture solution used for hydroponic culture can be prepared by adding an inorganic selenium compound to nutrient components such as phosphorus, potassium and nitrogen. Examples of usable inorganic selenium compounds include sodium selenite,
Examples thereof include potassium selenite, sodium hydrogen selenite, potassium hydrogen selenite, sodium selenate, potassium selenate, and hydrogen selenide.

The concentration of the inorganic selenium compound in the selenium-containing culture solution is preferably about 0.05 to 5 mg / L in terms of selenium. If the concentration is higher than this, there is a disadvantage that the growth of plants is inhibited and a sufficient yield cannot be obtained. Also,
If the concentration is lower than this, there is a disadvantage that the selenium content per unit mass of the plant is low, and the ratio of the selenium in the feed composition is too high, which makes preparation difficult.

The components containing nutrients such as phosphorus, potassium and nitrogen used in the selenium-containing culture medium are potassium nitrate, sodium nitrate, calcium nitrate,
Magnesium nitrate, nitrates such as ammonium nitrate, ammonium hydrogen phosphate, phosphates such as lime superphosphate, lime biphosphate, potassium sulfate, sodium sulfate, calcium sulfate, magnesium sulfate, sulfates such as ammonium sulfate, potassium chloride, Sodium chloride, calcium chloride,
Examples thereof include hydrochlorides such as magnesium chloride and ammonium chloride, and silicates such as potassium silicate, sodium silicate and calcium silicate.

The culture conditions are not particularly limited, but for example,
In the case of legumes, they are sown in a seedling box for hydroponic cultivation and allowed to grow until the second to third leaf stages. This is transplanted to the hydroponics tank. The culture fluid to be introduced into the main hydroponics tank contains phosphorus, potassium, nitrogen, etc., measured by each sensor, and added as appropriate so as to maintain a predetermined concentration. The culture fluid temperature is 1
The temperature is preferably 0 to 25 ° C, and the ambient temperature is preferably 15 to 30 ° C in a greenhouse or the like. Light irradiation may be natural lighting. After transplanting to the main hydroponics tank 1
Collect in 5 to 25 days.

The selenium concentration in the feed crop is preferably about 0.5 to 400 mg / kg based on the dry mass. If the concentration is higher than the above range, there is a disadvantage that the ratio of addition in the preparation of the feed composition becomes very small and it becomes difficult to disperse it uniformly in the feed. On the other hand, if the concentration is lower than this, there is a disadvantage that the ratio of the feed composition is too high and it is difficult to prepare.

The feed composition of the present invention may consist of 100% of the feed crop obtained by absorbing and accumulating selenium in the plant thus obtained. In addition, existing feed additives such as cereals, rice bran, oil cakes, oils and fats, starches, minerals and vitamins are easily added to a feed crop that absorbs and accumulates selenium in plants. Further, the feed crop in which selenium is absorbed and accumulated in the plant may be used as it is, or may be used after being semi-dried or dried. In the feed composition of the present invention, the amount of the feed crop that absorbs and accumulates selenium in the plant is such that the selenium content in the feed composition is preferably 0.01 to 30 ppm in terms of selenium, and more preferably The amount is about 0.1 to 3 ppm. If the concentration is higher than 30ppm,
There is a high possibility that harmful effects will appear on pets, and if the concentration is lower than 0.01 ppm, the selenium administration effect will not be sufficiently exerted. Is.

The optimum feeding amount of the feed composition of the present invention to an animal is slightly different depending on the type of animal to be treated, the age of the animal, and the ratio of the components in the feed, but the selenium intake is per 1 kg of the animal weight. It is preferable to adjust the amount to be about 0.0004 to 1.2 mg per day. Therefore, the selenium concentration in the feed composition of the present invention is preferably 0.01 to 30 ppm, more preferably 0.1 to 30 ppm as described above.
It is desirable to set it to 3 ppm.

The animals targeted by the feed composition of the present invention are:
Animals other than humans, for example, beef cattle, dairy cattle, calves, pigs, piglets, goats, sheep, horses, domestic animals such as rabbits, dogs,
Examples thereof include pets such as cats, mice, and small birds, poultry such as chickens and ducks, various animals kept in zoos, and the like.

[0016]

Since the feed composition of the present invention contains a feed crop in which selenium is absorbed and accumulated in the plant,
Animals rarely evade, that is, there are very few individual differences in selenium intake, and livestock can ingest necessary and sufficient selenium, which is an essential mineral. When an animal ingests the feed composition of the present invention, various useful effects are exhibited. For example, in the case of dairy livestock, the effects of increasing milk yield, improving milk quality, strengthening immune function against infectious diseases such as mastitis, and preventing sudden death, and improving reproductive rate in meat livestock, In addition to improving meat quality, it has the effect of increasing body weight in a healthy manner in animals such as general livestock and pets.

[0017]

EXAMPLES The embodiments of the present invention will be described below with reference to examples, but the present invention is not limited to the following examples. Reference Example (Manufacture of a feed crop in which selenium is absorbed and accumulated in the plant) A lotus seedlings (length of seedlings: about 7 cm, grown for about 2 weeks after seeding) are added to the culture solution for hydroponic culture shown in Table 1. Transplanted, 20
Individuals were raised. After 90 days of cultivation, it was collected and dried to a water content of about 20% by mass, and the selenium concentration was measured. Table 1 shows the measurement results of the selenium concentration.

[0018]

[Table 1] Table 1 Composition of culture solution for hydroponics and selenium concentration in dried astragalus

Examples 1 to 5 and Comparative Examples 1 and 2 (Preparation of feed composition) A dairy cattle feed was prepared by blending the plant crop obtained in the reference example with a feed crop that absorbed and accumulated selenium and various feed components. Was prepared. A feed composition was prepared by blending the basic feed formulation shown in Table 2 with a feed crop in which a predetermined amount of selenium was absorbed and accumulated in a plant. The content of the formulation is shown in Table 3. In addition, as a comparative example, a mixture of an inorganic selenium compound and a selenium-containing yeast was also prepared.

[0020]

[Table 2]             Table 2 Basic feed formulation (mass%)     Dry chemo sea hay 16% Fusuma 14.4%     Dried oats hay 8% Gluten field 6%     Peat pulp 16% Alfalfa meal 3%     18% corn 2% molasses     Barley 6% Calcium carbonate 1%     Soybean meal 6% Sodium chloride 0.5%     Rapeseed meal 3% Vitamin A, D, E, etc. 0.1%

[0021]

[Table 3] Table 3 Feed composition formulation (parts by mass)

Test Example 1 (milk quality evaluation test) The feed compositions prepared in Examples and Comparative Examples were weighed at about 600
4 kg of cows were fed with a feed amount of 24 kg per animal for 100 days. The amount of milk, the milk fat ratio, and the non-fat solid content of each feed composition before and after feeding were measured. The results are shown in Table 4.

[0023]

[Table 4] Table 4 Results of milk quality evaluation test

The dairy cows fed with the feed compositions of Examples 1 to 5 of the present invention showed a clear increase in milk yield as compared with the dairy cows fed with the feed compositions containing no selenium in Comparative Examples 1 and 2. The milk fat rate is also high.

Test Example 2 (Mastitis Preventive Effect Test) The feed compositions prepared in Examples and Comparative Examples were weighed at about 600
50 kg of dairy cows as a group and feed amount per animal is 24 kg
Were fed for 100 days. The incidence of mastitis after feeding each feed composition was counted. The results are shown in Table 5.

[0026]

[Table 5] Table 5 Results of mastitis incidence

Comparative Examples 1 and 2, dairy cows fed with a feed composition containing no selenium developed mastitis, whereas
In the cows fed the feed compositions of Examples 1 to 5 of the present invention, no mastitis was observed.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Junjiro Kubo             1-chome, Nakagawahonmachi, Minato-ku, Nagoya             Within the company Sinanen Zeomic (72) Inventor Yasuo Kurihara             1-chome, Nakagawahonmachi, Minato-ku, Nagoya             Within the company Sinanen Zeomic F term (reference) 2B150 AA01 AA06 AB03 AB04 CE16                       CE18 CE20 DH18                 4C086 AA01 AA02 HA08 MA05 MA52                       NA14 ZA45 ZB07 ZB26 ZC21

Claims (5)

[Claims] 1. A feed composition comprising a feed crop in which selenium is absorbed and accumulated in a plant. 2. The forage crop comprises legumes, grasses,
The feed composition according to claim 1, which is at least one kind selected from grasses and aquatic plants. 3. The selenium content of the feed is 0.01 to 3
The feed composition according to claim 1 or 2, which has an amount of 0 ppm. 4. A method for healthy weight gain of an animal, which comprises feeding the animal the feed composition according to any one of claims 1 to 3. 5. A method for preventing and / or treating a condition caused by oxygen injury due to selenium deficiency in an animal, which comprises feeding the animal the feed composition according to any one of claims 1 to 3. .