JP5927255B2 - Formula feed for pigs - Google Patents

Description

  The present invention relates to a mixed feed for pigs, a method for increasing vitamin B1 using the same, and pork with a high vitamin B1 content.

Vitamin B1 is a substance involved in carbohydrate metabolism, normalization of nerve function, and the like, and is an important nutrient for maintaining human health.
Vitamin B1 can be ingested from plant foods such as rice, wheat germ, and soybeans, and animal foods such as beef, pork, chicken liver, eggs, and fish, but especially in pork compared to other foods. It is widely known that it is abundant. For example, pork fillet contains about 10 times more vitamin B1 than beef, and by eating 100g of pork fillet, the daily required amount (1.0mg) of an adult can be ingested. it can.
Therefore, if pork containing vitamin B1 can be provided more abundantly, it can further contribute to the maintenance and promotion of human health, and it is economical as differentiated pork by strengthening its image as a high vitamin B1 food. The appeal effect is also expected to increase.

  Attempts to increase the nutritional value of livestock and poultry have been made in the past. For example, in Patent Document 1, when a feed containing a garlic extract containing an active vitamin B1 derivative is fed to a pig and raised, the meat quality is improved. In addition, it has been reported that the content of vitamin B1 in raw meat increases.

Japanese Patent Laid-Open No. 08-38071

  In the prior art, it is considered that vitamin B1 added to the feed is transferred to pork and the vitamin B1 content is increased. However, even if the amount of vitamin B1 supplied to the feed is increased, the transfer efficiency to pork is poor, There was a limit to the increase in vitamin B1 content. In addition, it has been found that simply increasing the vitamin B1 concentration in the feed reduces the amount of food consumed and adversely affects productivity.

  Accordingly, an object of the present invention is to provide a mixed feed for pigs and a method for increasing vitamin B1 that can improve the productivity, transfer vitamin B1 in the feed to pork more efficiently, and increase vitamin B1 in the pork. It is to provide.

  As a result of repeating various studies to solve the problem, the present inventor has improved the efficiency of vitamin B1 transfer to pork by supplying vitamin E together with vitamin B1 at a specific ratio to pork. It has been found that vitamin B1 content increases. Further, according to this method, it was found that the amount of eating does not decrease and the productivity is not deteriorated, and the present invention has been completed.

That is, this invention solves the said subject by the mixed feed for pigs characterized by containing 10-200 ppm of vitamin B1 and 50-500 ppm of vitamin E.
Moreover, this invention solves the said subject by the increase method of the vitamin B1 in pork characterized by feeding the said mixing | blending feed to a pig.
Moreover, this invention solves the said subject with the vitamin B1 high content pork characterized by containing 18-45 ppm of vitamin B1, and 1.5-11 ppm of vitamin E.

  According to the present invention, vitamin B1 in the feed can be efficiently transferred into pork without incurring productivity deterioration due to a decrease in the amount of food, and a vitamin B1-rich pork with an increased vitamin B1 content is obtained. be able to.

Vitamin B1 used in the present invention includes thiamine derivatives such as thiamine, bisthiamine, bisibtiamine, bisbenchamine, thiamine disulfide, octothiamine, fursultiamine, benfotiamine, bisthiamine, dicetiamine, or salts thereof. It is. The salt may be a pharmaceutically acceptable salt, for example, a mineral salt such as nitrate, hydrochloride, sulfate, etc .; acetate, propionate, tartrate, fumarate, maleate, malic acid Examples include organic acid salts such as salts, citrates, methanesulfonates, p-toluenesulfonates, trifluoroacetates, and the like. Specific examples include thiamine hydrochloride, thiamine nitrate, fursultiamine hydrochloride, dicetiamine hydrochloride, etc. Can be mentioned. These can be used alone or in combination of two or more. In the present invention, as vitamin B1, thiamine hydrochloride and thiamine nitrate are preferable.
Vitamin B1 is a known compound, and as a method for obtaining it, a commercially available product may be used, or it can be produced based on a known method.

  The content of vitamin B1 in the feed is 10 to 200 ppm. If the content in the feed is 10 ppm or more, pork meat with a high vitamin B1 content can be obtained. On the other hand, if the content is 200 ppm or less, a decrease in food intake and productivity can be prevented. The content of vitamin B1 is further preferably 20 to 200 ppm, particularly 40 to 200 ppm from the same point.

Vitamin E used in the present invention includes tocopherol, tocotrienol, or derivatives thereof. Vitamin E has optical isomers, all of which are included in the present invention.
Specifically, α-tocopherol, β-tocopherol, γ-tocopherol, δ-tocopherol, dl-α-tocopherol acetate, dl-α-tocopherol linoleate, dl-α-tocopherol linolenate, dl-α-nicotinic acid Examples include tocopherol, dl-α-tocopherol ascorbate, dl-α-tocopherol succinate, and dl-α-tocopherol calcium succinate. These can be used alone or in combination of two or more. In the present invention, vitamin E is preferably dl-α-tocopherol acetate.
Vitamin E is a known compound, and as a method for obtaining it, a commercially available product may be used, or it can be produced based on a known method.

  The content of vitamin E in the feed is 50 to 500 ppm. If content in feed is 50 ppm or more, transfer of vitamin B1 to pork can be efficiently increased. On the other hand, when it exceeds 500 ppm, the transfer efficiency of vitamin B1 tends to slow down, resulting in an increase in cost. It is preferable from the same point that the content of vitamin E is further 50 to 115 ppm.

  In addition to the above components, the mixed feed of the present invention includes, for example, corn, milo, brown rice, barley, wheat, rye and other grains; bran and other cereals; Animal feed such as meat-and-bone meal; various vitamins other than salt, oligosaccharides, silicic acid, vitamin B1 and vitamin E, minerals such as calcium carbonate and tricalcium phosphate; amino acids, organic acids and the like can be blended .

  The blended feed of the present invention is prepared by mixing vitamin B1 and vitamin E, and optionally the above-mentioned optional ingredients, and mixing them by a conventional method. The form in particular is not restrict | limited, For example, it can be set as a pellet form, flake form, mash form, liquid form, etc.

  In the present invention, the feed amount of the mixed feed varies depending on the age (month) of the pig, sex, and the like, but it is usually preferable to take an average of 2-2.5 kg / head / day.

Further, the mixed feed of the present invention may be fed to pigs over the entire breeding period or only for a certain period of the breeding period, but is preferably fed for at least 50 days before shipment.
The kind of pig which feeds the mixed feed of the present invention is not particularly limited, and examples thereof include LWD species, WLD species, hybrid species, Berkshire species and the like.

  The pork obtained by the present invention has an increased vitamin B1 content as a result of the efficient transfer of vitamin B1 in the feed. The content of vitamin B1 in pork is 18 ppm or more, preferably 30 ppm or more, more preferably 30 to 45 ppm. At the same time, vitamin E increases, and the content of vitamin E in the pork is 1.5 to 11 ppm, more preferably 3 to 11 ppm, from the viewpoint of maintaining good quality meat.

  Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited to these examples.

<Measurement method of vitamin B1 content>
The mixed feed was measured by the “high performance liquid chromatographic method” according to the feed analysis standard listing analysis method, and the pork loin was measured by the “high performance liquid chromatographic method” according to the 5th Japan Food Standard Composition Table Analysis Manual.

<Measurement method of vitamin E content>
The mixed feed was measured by the “high performance liquid chromatographic method” according to the feed analysis standard listing analysis method, and the pork loin was measured by the “high performance liquid chromatographic method” according to the 5th Japan Food Standard Composition Table Analysis Manual.

  A basic feed comprising the composition shown in Table 1 below was prepared. The basic feed contains 4.6 ppm of vitamin B1 and 15 ppm of vitamin E.

Example 1
Using test pigs (LWD species, male, average body weight 60 kg) each 5 heads, vitamin B1 (VB1) and vitamin E (VE) are added to the basic feed shown in Table 1 so as to have each concentration shown in Table 2, They were mixed and raised for 7 to 10 weeks. Feed and water were used as a constant supply.
About each test pig, vitamin B1 content in the roast meat immediately after slaughter was measured, and the average was calculated | required. The results are shown in Table 2.

  As is clear from the results in Table 2, it was found that when the vitamin B1 content in the feed was increased to 10 ppm or more, pork with a high vitamin B1 content was obtained (test sections No. 3 to 6). Moreover, even if the vitamin B1 density | concentration in feed is the same, it turned out that vitamin B1 transfers efficiently to pork by feeding 50 ppm or more of vitamin E in combination, and the vitamin B1 content in pork increases. (Test section No. 3, 4). From the above, it was confirmed that not only simply increasing the vitamin B1 content in the feed, but also combining it with an appropriate amount of vitamin E, the pork meat with high vitamin B1 content can be obtained more efficiently.

Example 2
Vitamin B1 and vitamin E were added to and mixed with the basic feed shown in Table 1 so as to have the concentrations shown in Table 3, and pigs were raised in the same manner as in Example 1.
About each test pig, vitamin B1 content in the roast meat immediately after slaughter was measured, and the average was calculated | required. The results are shown in Table 3.

As can be seen from the results in Table 3, even if the vitamin B1 content in the feed is the same as 40 ppm, vitamin B1 is efficiently transferred to pork by feeding 50 ppm or more of vitamin E in combination. It was found that the vitamin B1 content was increased (test section Nos. 8 to 13). On the other hand, when vitamin E content exceeded 500 ppm, it was confirmed that the improvement efficiency of vitamin B1 transfer efficiency slows down.
Vitamin B1 content in pork reached a peak when feeding a feed with a vitamin B1 content of 200 ppm in the feed, and even if the vitamin B1 concentration in the feed was increased to 200 ppm or more, it did not increase further (test areas 14 to 15). ).
In addition, the vitamin E content in pork reaches a peak when feeding a feed with a vitamin E content of 300 ppm in the feed, and even if the vitamin E content in the feed is increased to 300 ppm or more, the vitamin E content in the pork exceeds that Did not increase (test areas 11 to 13).
From the above, it was confirmed that porcine meat with high vitamin B1 content can be obtained more efficiently by combining with vitamin E in the concentration range of 50 to 500 ppm in the feed as well as simply increasing the vitamin B1 content in the feed. . Further, it was confirmed that even if the vitamin B1 content and the vitamin E content in the feed were increased to a certain amount or more, the vitamin B1 content in the pork was not increased to a certain amount or more.

Example 3
Vitamin B1 and vitamin E were added to the basic feed shown in Table 1 so as to have the concentrations shown in Table 4 and mixed, and pigs were raised in the same manner as in Example 1. During the breeding period, the amount of food was measured every day and the average was obtained. The results are shown in Table 4.

  From the results shown in Table 4, it was found that when the concentration of vitamin B1 exceeds 200 ppm, the amount of food consumed decreases, leading to poor growth. Therefore, the vitamin B1 content in the feed is preferably 200 ppm or less.

Claims (4)

A mixed feed for pigs containing 10 to 40 ppm of vitamin B1 and 115 to 500 ppm of vitamin E.   A method for increasing vitamin B1 in pork, comprising feeding the pig with the mixed feed according to claim 1.   A method for producing pork, characterized in that the mixed feed according to claim 1 is fed to a pig. Vitamin B1 high content pork characterized by containing 18 to 45 ppm of vitamin B1 and 10 to 11 ppm of vitamin E.