JPS60164441A - Blended feed for young animal - Google Patents

Abstract

PURPOSE:The titled feed usable effectively without exterting bad influcence on breeding, obtained by adding a processed and treated material of soybean which was subjected to removal treatment of antigenicity to a blended feed in such a way that a content of antigenic substance in the blended feed becomes a specific value. CONSTITUTION:A blended feed is blended with 5-50wt% processed and treated material of soybean such as soybean cake, peeled soybean cake, etc. which was subjected to removal treatment of antigenicity, useful as a raw material for feed, so that a content of antigenic substance in the blended feed is adjusted to <=4 unit, to give the desired blended feed. The removal treatment of antigenicity is preferably carried out by heat treatment and/or alcohol treatment of the processed and treated material of soybean.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compound feed for young animals containing processed soybeans that have been subjected to antigenicity removal treatment, and more specifically, to feeds for infant animals that contain antigenic substances derived from processed soybeans. This invention relates to a compound feed for young animals whose content is adjusted to 4 units or less.

1. Processed soybean products here refer to raw materials for feed obtained by subjecting soybeans to heat treatment, alcohol treatment, acid treatment, etc., and include soybean meal, dehulled soybean stalks, extracted soybean protein, and tissue. For example, such protein may include protein, concentrated soybean protein, and the like.

Processed soybeans as described above have been widely used as a raw material for compound feed for livestock as a source of high-quality protein and energy.

However, when feed containing processed soybean products is given to young animals, frequent diarrhea and growth retardation are observed, so it has been necessary to limit the amount of feed added.

As a result of studying the effects of the above-mentioned processed soybeans on young animals, the present inventor found that the antigenic substances originally contained in soybeans are the cause of diarrhea and growth retardation in the above-mentioned animals. The present invention was made based on the knowledge that these phenomena observed in young animals are correlated with the content of the above-mentioned antigenic substances in the compound feed, depending on the age and type of the animal. Ta.

Originally, young animals during the lactation period possess antibodies against antigens derived from processed soybean products through their mothers, and even after weaning, they can be fed feed containing processed soybean products. It produces the above antibodies by itself. However, in young animals before and after weaning, where the body's defense mechanism is insufficient and unstable, rapid biological reactions occur when loaded with large amounts of antigens, resulting in frequent diarrhea due to intestinal damage and delayed growth. In particularly severe cases, it can cause an allergic reaction that can lead to death. This is because the processed soybean products (for example, soybean meal) conventionally used as raw materials for compound feeds contain a large amount of the antigenic substance, about 11 to 14 units. There is.

Therefore, the present invention provides the following advantages: ``By adjusting the content of antigenic substances derived from processed soybean products in the compound feed to 4 units or less, the above-mentioned effects can be achieved even when fed to the young animals. The purpose is to provide a compound feed for young animals that does not show any adverse effects.

The present invention will be explained in detail below.

The structural feature of the present invention is that 5% to 50% by weight of processed soybeans that have been subjected to antigenicity removal treatment are added to the compounded feed, so that the content of antigenic substances in the compounded feed is reduced to 4% by weight.
This is due to the adjustment being made below the unit.

Note that the unit indicating the content of antigenic substances here is the titer, which is the log2 value of the minimum dilution ratio at which agglutination of red blood cells is observed using the hemagglutination inhibition reaction.
). In addition, the antigen substance was measured according to the conventional method, but the antibody was measured using calf antiserum at 1/128
The protein concentration of the antigen solution was adjusted to 2 mg/mg.
(uhation) time was 30 minutes at room temperature, and the amount of red blood cells was 50 μi as a 0.8% suspension.

In the above measurement method, when the content of the antigen substance was extremely low, such as 1 unit or less, the protein concentration of the test antigen solution was appropriately increased and analyzed. Incidentally, when the content of antigenic substances in ordinary soybean meal is calculated using this measurement method, it is approximately 11-14 units, although it varies depending on the manufacturing conditions of the soybean meal.

In addition, the content (unit) of antigenic substances in the compound feed is calculated using the following formula.

x = log (f 2”xh) t-1 [However, in the formula, X is the antigen content, 0.1 is the antigen content of the processed soybean product, and @t is the blending rate of the processed soybean product in the compound feed. In the present invention, in order to adjust the content of antigenic substances derived from processed soybean products in the above-mentioned compound feed to 4 units or less, the content of antigenic substances in the processed soybean products used as the compound feed is adjusted to 4 units or less. This can be achieved by measuring the amount in advance, taking the measured value into consideration, and adding 5% to 50% by weight of the processed soybean product to the compounded feed, which has been treated to remove its antigenicity.

For example, the content of the above-mentioned antigenic substance in the compound feed may be reduced to 4.
In order to reduce the amount to less than one unit, since the content of antigenic substances in processed soybean products used as blended raw materials is not uniform, several types of processed soybean products with different antigenic substance contents are treated to remove antigenicity. It is best to use a combination of the following to reduce the antigen substance content to 4 units or less in terms of compound feed, and
If a compounded feed with an even lower content of antigenic substances is desired, processed soybean products with a particularly low content of antigenic substances obtained by removing antigenic substances may be used in the formulation. Incidentally, in order to effectively suppress the above-mentioned phenomenon observed in young animals, it is preferable to adjust the content of antigenic substances in the compound feed to 2 units or less.

In the present invention, in order to remove antigenicity from processed soybean products in advance in order to obtain a compound feed with an extremely low content of antigenic substances as described above, processed soybean products (for example, soybean flakes, etc.) as a compound feed are used. heat-treated in 40 to 70% by weight lower alcohol (3 to 4 times the amount) at a temperature of about 70°C, or by adding about the same weight of water to the above processed soybean product to a temperature of 100°C to It is preferable to perform heat treatment at a temperature of 140° C. for about 60 minutes.

In addition, in the compound feed according to the present invention, in addition to processed soybean products, nutrients such as skim milk powder, glucose, fish meal, wheat flour, animal fats and oils, fish solubles, and vitamins and minerals are appropriately blended using conventional methods. Therefore, when adjusting the content of antigenic substances derived from processed soybean products, it goes without saying that the amount of these mixed feeds should be taken into consideration. Incidentally, the amounts of these nutrients added are generally 0 to 40% by weight for skim milk, 0 to 20% by weight for glucose, 3 to 10% by weight for fish meal, and 20 to 50% by weight for wheat flour.
, 0 to 5% by weight for animal fats and oils, and 0 to 5% by weight for fish solubles.

As mentioned above, the present invention utilizes processed soybean products, which are excellent compound feed ingredients as a source of high-quality protein and energy, without adversely affecting the rearing of young animals.
This has the effect of making it possible to use it effectively.

EXAMPLES The effects of the present invention will be specifically explained below with reference to Examples.

Example 1 Four types of soybean meal (A, B,
C and D) were adjusted as follows.

N obtained by removing the solvent from soybean flakes defatted with n-hexane using a desolventizer/deodorizer.
5138 defatted soybeans were used as the raw material.

220 kg of 60% by weight ethanol in Jaquera 1 ~ 3007 with stirrer! The mixture was placed in a glass-lined reactor and heated to a predetermined temperature in advance, and 50 kg of defatted soybeans as the raw material were added thereto with stirring, and a reaction was carried out for 2 hours.

'The obtained reaction slurry was subjected to solid-liquid separation using a basket centrifuge to remove miscella, and then washed with 120 kg of 60% by weight ethanol and subjected to solid-liquid separation to obtain wet flakes.

The soybean meal was washed and solid-liquid separated once more in the same manner as above. Next, each of the wet flakes obtained as described above was spread and placed in a tray to a layer thickness of about 3cI11, dried in a tray dryer under specified conditions, and then crushed in a pin mill. Light yellow powdered soybean meal A, B, C1 and D were obtained.

The preparation conditions and analytical values for each sample are as shown in Table 1.

Next, powdered soybean axes A, B, and C1 obtained as described above
and D, skim milk powder, glucose, wheat flour, fishmeal, animal oil and fat, and vitamins, minerals, and other feed additives Table 2
Compound feeds were prepared by mixing each of the ingredients in the proportions shown below.

In addition, as a control, a product without the above-mentioned powdered soybean stem was also prepared.

A feeding test was conducted by feeding each of the compounded feed teeth 1 to 7 obtained by blending as described above and the control compounded feed to each test group consisting of 16 piglets aged 3 to 5 weeks old. I did it. The results are shown in Table 3.

As shown in Table 3, in the test plots fed compound feeds containing 4 units or less of antigen substance (N04-N07), in the test plots fed compound feeds with a higher content (No. 1-11kt3), Compared to piglets, the incidence of diarrhea was significantly reduced by IQ, and their growth status was excellent.Especially in the test plots fed less than 2 units of compound feed (6 to N0.7), piglets containing soybean meal The incidence of diarrhea was extremely low, comparable to that of the control group.

Example 2 The same four types of powdered soybean stalks A1B and C as used in Example 1
and D were blended with powdered milk, sugar, animal oil, dry fish solubles, and vitamins, minerals, and other feed additives in the proportions shown in Table 4 to prepare compound feeds. As a control, a sample without powdered rice and soybean meal was also prepared.

Next, each of the seven types of compound feeds obtained by mixing as described above and the control compound feed that does not contain soybean meal was administered to each group of eight calves between one week and four weeks old. A breeding test was conducted by feeding them to the test plot. The results are shown in Table 5.

As shown in Table 5, the antigenic substance content in the compound feed was 4.
When the amount is less than 1 unit, the incidence of diarrhea in calves decreases, and in particular, when the amount is less than 2 units, the incidence of diarrhea in calves is extremely low, comparable to the test group fed a control feed that does not contain soybean meal.

Applicant: Kyodo Feed Co., Ltd. Applicant: Ajinomoto Co., Inc. Agent Miya 1) Hirotoyo

Claims (1)

[Scope of Claims] 1) 5% to 50% by weight of processed soybeans that have been subjected to antigenicity removal treatment to the compounded feed, so that the content of antigenic substances in the compounded feed is 4 units or less A compound feed for young animals prepared by adjusting the following: 2) The compound feed for young animals according to claim 1, wherein the antigenicity removal treatment is carried out by heat treatment and/or alcohol treatment of the processed soybean product as the compound feed.