JP2001309752A - Feed for piglet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a feed for piglets capable of improving the palatability by formulation in a feed for the piglets, increasing the intake and thereby promoting the growth. SOLUTION: This feed for the piglets is obtained by formulating an enzymic hydrolyzate of an egg with a protease and/or a lipase in the feed for the piglets.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a piglet feed.
More specifically, the present invention relates to a piglet feed that, when incorporated in a piglet feed, enhances the taste of the piglet feed, increases the intake of the piglet feed, and promotes the growth of the piglet.

[0002]

2. Description of the Related Art Conventionally, it has been practically used to improve the palatability by adding a feed additive such as flavor to livestock feed to increase the intake of livestock feed. For example, by adding a flavor with the aroma of mother's milk to pig milk formula, it can increase the intake of pig milk formula, facilitate early weaning of suckling piglets, and improve sugar and sodium glutamate. It has been known for a long time that incorporation of this into pig feed improves palatability of the pig feed and increases the intake of pig feed (Feedstuffs Vol. 33,
48, (Dec. 2) 61, 1961). Similarly, it has been proposed to improve the palatability by adding a specific organic acid and salts thereof to livestock feed such as for pigs. For example, livestock feed to which propionic acid is added (Japanese Patent Publication No. 48-1667). For livestock to which a carboxylic acid having 4 to 6 carbon atoms or a salt thereof is added (JP-A-56-1214).
No. 36), and a livestock feed to which propionic acid, acetic acid, butyric acid and salts thereof are added (see Japanese Patent Application Laid-Open No. 47-1309). It has also been proposed to use egg components as livestock feed additives. For example, an animal growth promoting or improving feed containing egg white as an active ingredient (see Japanese Patent Application Laid-Open No. 5-260902), a yolk defatted, and a water-soluble fraction comprising yolk proteins and peptides obtained. Bone-enriched food, feed or medicine (see Japanese Patent Application Laid-Open No. Hei 4-53471), and feed for suckling piglets obtained by blending chicken egg powder with feed for suckling piglets, granulating and drying. 3-198749
Publication).

[0003]

However, the conventional feed additive for pigs can improve the palatability to some extent, but increases the intake of piglet feed to promote the growth of piglets. In this respect, satisfactory effects were not always obtained. Therefore, the present invention provides a piglet feed that can increase the intake of the piglet feed and improve the growth of the piglet by improving palatability more than the conventional piglet feed. The purpose is to provide.

[0004]

Means for Solving the Problems The present inventors have conducted intensive studies in order to solve the above-mentioned problems, and as a result, the enzyme digestion product by egg protease and / or lipase was added to the piglet feed. We found that we could solve the problem,
The present invention has been completed. That is, the present invention is a piglet feed characterized by containing an enzymatically degraded product of egg protease and / or lipase as an active ingredient.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION As described above, the piglet feed of the present invention is characterized in that an enzymatically decomposed product of egg protease and / or lipase is used as an active ingredient. And, by having such characteristics, the present invention significantly improves palatability as compared with the conventional piglet feed, so that the intake of the piglet feed is increased, and as a result, the growth of the piglet is promoted. It has an excellent effect that it can be performed. In preparing the piglet feed of the present invention, eggs to be subjected to enzymatic degradation by protease and / or lipase are mainly eggs of poultry such as chicken eggs and duck eggs. These eggs can be used in liquid or powder form. In addition, the egg refers to egg yolk and egg white contained in the eggshell.

[0006] The protease used for enzymatically decomposing eggs is not particularly limited. For example, various microorganisms such as Aspergillus, Mucor, Rhizopus, Streptococcus, Lactobacillus, Penicillium, and Bacillus Microbial protease collected from
Examples include plant protease such as bromelain and papain collected from plants, and animal protease such as trypsin and pepsin collected from animal organs and the like. These proteases can be used alone or in combination of several kinds.

[0007] The enzymatic degradation of eggs by proteases is carried out by adding 0.05 to 10% by weight of a protease such as a microbial protease, a plant protease, or an animal protease to a homogeneous mixture of a liquid or powdered egg and water. 2
The reaction is carried out at 0 ° C to 60 ° C for 0.5 hours to 20 hours under stirring or standing conditions. After completion of the enzymatic degradation, the pH of the enzymatic degradation product is adjusted, if necessary, and heated to inactivate the protease. Thus, an enzymatic degradation product of egg protease can be obtained. Enzyme degradation products by protease can be used as a piglet feed as it is,
Generally, it is preferable to concentrate the decomposition product and use it as a concentrate. Further, the degradation product may be used in the form of a composition with a suitable diluent or carrier. Such diluents or carriers include gum arabic, dextrin, glucose, sucrose and other solid diluents or carriers, or water, ethanol, propylene glycol, glycerin,
A liquid diluent such as a surfactant or a carrier can be exemplified. The enzymatic degradation product of the protease can be prepared in any dosage form using a diluent or carrier, for example, powder, granule, liquid, emulsion, paste, or any other appropriate dosage form. In particular, gum arabic, dextrin and the like are preferably added to make a powder or granules from the viewpoint of stability.

[0008] The lipase used for enzymatically decomposing eggs is not particularly limited, and examples thereof include Aspergillus, Mucor, Rhizopus, Penicillium,
Lipases collected from various microorganisms such as Candida, Pichia, and Chromobacterium, lipase collected from pig pancreas, and oral lipase collected from oral secretory lines of goats, lambs, and calves. Can be. These lipases can be used alone or in combination of several kinds.

The enzymatic degradation of eggs by lipase is carried out by adding 0.05 to 10% by weight of a lipase such as a microbial lipase or an oral lipase to a homogeneous mixture of a liquid or powdered egg and water. 0.5 hours to 2 at 60 ° C
It is performed under stirring or standing conditions within a range of 0 hour. The enzymatic degradation of eggs by lipase is preferably performed so that the decomposition rate of lipids contained in eggs (acid value / saponification value × 100) is about 10 to 80%. When an enzymatically degraded product having a decomposition rate outside this range is used as a piglet feed, palatability is inferior to that of an enzymatically decomposed product within the above range.
After completion of the enzymatic degradation, the pH of the enzymatic degradation product is adjusted, if necessary, and heated to inactivate the lipase. Thus, an enzymatic degradation product of egg lipase can be obtained. The enzymatically decomposed product by lipase can be used as it is as a piglet feed, but it is generally preferable to concentrate the decomposed product and use it as a concentrate. Further, the decomposed product can be separated by using an appropriate separation means such as centrifugation, and the obtained oil and fat can be used as a piglet feed. Further, the decomposed product may be used in the form of a composition with a suitable diluent or carrier. Examples of such diluents or carriers include solid diluents or carriers such as gum arabic, dextrin, glucose, and sucrose, or liquid diluents or carriers such as water, ethanol, propylene glycol, glycerin, and surfactants. Can be. Enzymatic degradation products by lipase can be used in any dosage form using these diluents or carriers,
For example, powder, granule, liquid, emulsion, paste,
Other appropriate dosage forms can be prepared. In particular, it is preferable to add a gum arabic, dextrin, or the like to obtain a powder or granule from the viewpoint of stability.

[0010] The piglet feed of the present invention can contain the above-mentioned enzyme hydrolyzate by the protease and lipase of the egg alone, or can contain both the enzyme hydrolyzate by the protease and the lipase. By including both enzymatic degradation products, preference for piglet feed can be further improved. As a method for preparing an enzymatic degradation product by protease and lipase, in addition to a method of preparing each enzymatic degradation product separately, a method of adding protease and lipase to eggs and simultaneously enzymatic degradation, and a method of adding protease to eggs and adding enzymes Either a method of adding lipase and then enzymatic degradation after decomposition, or a method of adding lipase to egg and enzymatic degradation and then adding protease to perform enzymatic degradation can be adopted. When the protease and the lipase are separately prepared, a premix of the protease and the lipase can be added to the piglet feed. Can be separately added to the piglet feed. When both the protease and the lipase are combined in a piglet feed, the mixing ratio of each enzyme is not particularly limited. 1 part by weight to 10 parts by weight can be exemplified. In the piglet feed of the present invention, in addition to the enzymatic degradation product,
If desired, amino acids, vitamins, feed flavor and the like can be added and blended. The thus obtained piglet feed of the present invention is 0.01 to 0.01% of the piglet feed.
50% by weight, preferably 0.1 to 10% by weight is added and mixed. If the amount of the piglet feed is less than 0.01% by weight, the effect of improving palatability is not sufficient, and if it exceeds 50% by weight, no further effect of improving palatability can be expected. , Resulting in high costs.

[0011]

Next, the present invention will be described more specifically with reference to examples and comparative examples. Note that the present invention is not limited to the following embodiments.

Example 1 (Preparation of Enzyme Hydrolyzate of Egg by Protease) Egg yolk and egg white of chicken eggs were homogenized with a TK homomixer (trade name, manufactured by Tokushu Kika Kogyo Co., Ltd.) for 15 minutes until they became homogeneous.
Protease: 100 parts by weight of the obtained liquid egg
0.5 parts by weight of papain powder (manufactured by Nagase & Co., Ltd.) was added, and the enzyme was decomposed at 40 ° C. for 3 hours. Then, after heating at 90 ° C. for 10 minutes to inactivate the protease, 70 parts by weight of dextrin was added to 100 parts by weight of the enzyme digest and spray-dried to obtain a powdery enzyme digest ( Invention product 1).

(Example 2) (Preparation of enzymatically degraded egg by lipase) The egg yolk and egg white of chicken eggs were homogenized for 15 minutes using a TK homomixer (same as above) until uniform. To 100 parts by weight of the obtained liquid egg, 5 parts by weight of lipase: lipase (trade name, manufactured by Tanabe Seiyaku Co., Ltd.) was added, and enzymatic degradation was performed at 35 ° C. for 5 hours. After heating at 90 ° C. for 10 minutes to inactivate the lipase, 70 parts by weight of dextrin was added to 100 parts by weight of the enzymatic degradation product and spray-dried to obtain a powdery enzymatic degradation product (the present invention). Article 2).

Example 3 (Preparation of Enzyme Hydrolyzate of Egg with Protease and Lipase) Egg yolk and egg white of chicken eggs were homogenized with a TK homomixer (same as above) for 15 minutes until uniform. One part by weight of protease: papain powder (same as above) was added to 100 parts by weight of the obtained liquid egg, and enzymatic degradation was performed at 40 ° C. for 3 hours. After heating at 90 ° C. for 10 minutes to inactivate the protease, 0.5 parts by weight of lipase: talipase (same as above) was further added, and the enzyme was digested at 35 ° C. for 3 hours. After heating at 90 ° C. for 10 minutes to inactivate the lipase, 70 parts by weight of dextrin was added to 100 parts by weight of the enzymatic degradation product and spray-dried to obtain a powdery enzymatic degradation product (product of the present invention) 3).

(Tests 1 to 3) Tests were carried out on piglet feeds of the products 1 to 3 of the present invention in the following manner. (Test method) Two small feeders (three mouths) were placed in a breeding cage for young pigs containing three weaning piglets 21 days old after birth, and one of the feeders shown below was used as a control as a control. In the other feeder, the same feed to which the present invention product 1 to 3 was added at 2% by weight was added, and feed feeding was started at the same time, and both feeds were freely taken (product of the present invention). 1 to 3 correspond to Test Examples 1 to 3, respectively). Then, the feed intake up to 3 days after the start of the test was measured continuously, and the feed intake per day (g / day) and selectivity (%) were determined. The results of Test Examples 1 to 3 are shown in Tables 1 to 3, respectively. In addition, the test result shows the average value of the value obtained by repeating three times in each test example. Feed for feeding (% indicates wt%) Flour 38.5% Sugar 5.0% Glucose 8.0% Skim milk powder 40.0% Whitefish meal 3.0% Soybean oil 4.0% Salt 0.2 % Vitamins and minerals 0.8% Amino acids 0.5% Total 100.0%

[0016]

[Table 1]

[Table 2]

[Table 3]

(Results) From the results shown in Tables 1 to 3, the product of the present invention 1
In Test Example 1 in which was added, the product of the present invention 1
The feed of the test group to which was added was selectively taken, and a stable feed intake was confirmed until the end of the test. It is characterized by high feed intake up to one day after weaning. In the test example 2 to which the product 2 of the present invention was added, the feed from the test section to which the product 2 of the present invention was added was selectively taken immediately after the start of the test similarly to the test example 1,
A stable feed intake was confirmed until the end of the test. Three days after the start of the test, there was no difference in the selectivity. Invention product 3
In Test Example 3 in which was added, as in Test Examples 1 and 2, feed from the test section to which the product of the present invention 3 was added was selectively taken immediately after the start of the test, and a stable feed intake was confirmed until the end of the test. In the feed of the test group to which the product 3 of the present invention was added, compared with the feed of the test group to which the product 1 of the present invention and the product 2 of the present invention were added,
Very high selectivity was maintained.

[0018]

According to the piglet feed of the present invention, the preference for the piglet feed is improved, and the intake of the piglet feed is increased, so that the growth of the piglet can be promoted.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Makoto Hayashi 335 Kariyuku Hasegawa Nakahara-ku, Kawasaki City, Kanagawa Prefecture Inside the Technical Research Institute (72) Inventor Tomohiro Asano Daiku Komatsuno, Shimoyamamura, Higashikamo-gun, Aichi Prefecture Chubu Feed Co., Ltd. Kamo Farm (72) Inventor Takahiro Morimoto 7-34 Ibaraza, Yokone-cho, Obu-shi, Aichi F Chubu Feed Co., Ltd. Obu Research Laboratory F-term (reference) DF15

Claims (1)

[Claims] 1. A piglet feed comprising, as an active ingredient, an enzymatically decomposed product of egg protease and / or lipase.