JP2636409B2 - Granular feed for young animals - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a granular feed for young animals.

[Prior Art] Conventionally, artificial feeds for young animals have been produced mainly using, for example, wheat flour, kinako, corn, skim milk powder, sugars such as sucrose and glucose, fish meal, oils and fats. When such a feed is fed in powder form, it is difficult to take it due to stickiness, which makes it inferior to animals, and when fed in a feeder, it has poor flowability and flows down to the feeding surface. There was a drawback of not coming.

For this reason, it has been proposed to pelletize the feed, in which case starch materials, molasses, alcoholic fermentation waste liquor, etc. are used as binders for solidification and formed into pellets. However, there is a drawback that the formed pellet-shaped feed is hard and does not meet the taste of animals.
In such a case, if a similar material is used to produce a soft pellet, the disadvantages are that the loss in the production process increases, the product yield deteriorates, and that the powder becomes crushed during transportation. is there.

In addition, for the purpose of soft feed, the water content should be 20-50
Semi-moist feeds in weight percent are also known, but they complicate packaging, handling and feeding for transport.

Furthermore, for the purpose of improving fluidity and palatability,
A granular feed for piglets in which 50% or more of the granules have a particle size of 0.25 mm or more and the angle of repose of the granules is 45 degrees or less has also been recently developed (JP-A-63-173545). However, in this granular feed for piglets, 50% or more of the granules are in the range of 0.25 to 0.5 mm in size, and the proportion of granules with a particle size of 0.5 mm or more is about 36% or less and the particle size is small. However, the taste of piglets is not enough.

Therefore, in view of the above, there has been a demand for a feed that has better palatability, is more fluid, and is easier to handle.

[Content of the Invention] The present inventors have continued research on animal feed. As a result, when the feed to be fed to the young animal is made into granules having a specific particle size range, the intake is increased in accordance with the taste of the young animal, resulting in a large weight gain. In addition, the granular feed is rich in fluidity and handling. The inventors have found that the present invention is easy, and have completed the present invention.

That is, the present invention is a granular feed for young animals, wherein the content of granules having a particle size in the range of 1.68 mm to less than 3.36 mm is 50% by weight or more.

As described above, in the granular feed for young animals of the present invention, the content of granules having a particle size in the range of 1.68 mm or more and less than 3.36 mm is 50% or more based on the weight of the whole granular feed. Is required, and as the content of the granules in the particle size range decreases, the palatability of the young animal decreases.

From the viewpoint of palatability and weight gain by young animals, it is preferable that the content of the granules having a particle size in the range of 1.68 mm or more and less than 3.36 mm is about 70% by weight or more. Further
In the particle size range of 1.68 mm or more and less than 3.36 mm, the particle size is 1.
The content of the granules in the range of 68 mm or more and less than 2.38 mm is about 70% by weight or more of the whole granular feed, particularly those having about 80 to 100% by weight are extremely excellent in the palatability of young animals, and are preferred.
Next, the granular feed having a particle size of 2.38 mm or more and less than 3.36 mm having a content of about 80 to 100% by weight of the whole granular feed has good palatability. Preference tends to improve as the particle size of the granules becomes more uniform.

Granular feed of the present invention, flour, kinako, soybean oil cake,
Corn flour, barley flour, skim milk powder, fish flour, sugar, whey, bran, rice bran, milo flour, alfa al famir,
Manufactured by combining any of the raw materials conventionally used in this type of feed, such as linseed oil cake, oils and fats, yeasts, minerals, vitamins, salt, flavors, amino acids, etc., and granulating them into granules. In that case, the use of a thickener such as guar gum or CMC promotes the formation of granules having a large particle size.

Then, the content of granules having a particle size defined by the present invention in the range of 1.68 mm or more and less than 3.36 mm by granulation is about
If a granular feed of 50% by weight or more cannot be obtained directly, the produced granules are classified by a sieve classification or other methods, and the content of the granules of 1.68 mm or more and less than 3.36 mm is reduced to a granular feed. It may be adjusted so that it is about 50% by weight or more of the whole.

Any granulation method, granulation device, and granulation conditions can be adopted as long as the granulated feed having a particle size within the range of the present invention can be provided.

For example, the granular feed of the present invention can be manufactured by a stirring granulation method, a flow granulation method, an extrusion granulation method, etc., and among them, the stirring granulation method has a particle size of 1.68 mm or more and less than 3.36 mm. It is preferable in that granules having a high content can be provided, granules having low hardness are produced, and productivity is high.

Depending on the composition of the feed for young animals, it may be difficult to granulate into granules, and it may be difficult to granulate into relatively large granules of 1.68 mm or more. In that case, saccharides often mixed in feeds to enhance the palatability of young animals are mixed in advance with water or other liquid materials to make them liquid and then added to the remaining materials for granulation. Granulation is easier than in the case where the powdered saccharide is directly mixed with another material and granulated, and the content ratio of granules having a large particle diameter can be increased. When blending saccharides in a liquid state, sugar, sugar and liquid sugar (for example, molasses, isomerized sugar,
Dissolve in water and add during granulation to obtain granules with high granulation properties and soft granules. Also, dissolve the upper sugar and glucose in water and add during granulation to granulate The character becomes better. However, instead of white sucrose, other sugars such as granulated sugar, warm brown sugar, glucose, brown sugar, and sugar may be dissolved in water together with glucose, liquid sugar, and the like, and blended at the time of granulation. May be used.

It is desirable to carry out the granulation operation by adding about 12 to 25% by weight of water on an external basis, in view of the granulation properties and the hardness of the obtained granular feed.

The granular feed of the present invention usually has a hardness of about 5 kg / cm ³ or less as measured by the following method, and has a hardness of about 6 kg / cm ³ or less.
A water content of 1515% by weight is preferred from the viewpoints of palatability by young animals, easy handling of feed, and the like.

[Measurement Method of Hardness of Granular Feed] A cylinder having an inner diameter of 1.05 cm and a depth of 7.5 cm is filled without applying pressure until the granular feed is completely worn. To this rheometer: NRM-2005J (manufactured by Fudo Kogyo Co., Ltd.)
Apply a load of 5 kg from above using.

The space volume A (cm ³ ) in the cylinder generated when a load of 5 kg was applied was measured, and the hardness was determined by the following equation.

[Measurement Method of Moisture Content of Granular Feed] 5 g of the granular feed was collected, and the feed weight (a) when dried at 110 ° C. for 2 hours was measured, and determined by the following formula.

The composition of the granular feed of the present invention is not particularly limited, and any of the conventionally known compositions can be employed in the present invention depending on, for example, the type, age, and weight of the animal.

And the young animal referred to in the present invention is, for example, a pig, a cow,
This refers to animals before the growth of animals such as horses, noodles, goats, dogs, cats, monkeys, rats and mice.
The animals up to the age of 6 months, and in the case of pigs, usually up to the age of about 2 months, but this is only a rough guide, since there are differences depending on the type, breed, and individual of the animal. Absent. Among the above animals, the granular feed of the present invention is particularly suitable for pets such as pigs, cattle, dogs and cats.

[Effects of the Invention] In the present invention, the feed for young animals has a particle size of 1.68 mm to 3.36 mm.
By using a granular feed having a content of granules less than 50% by weight or more, the palatability of young animals can be greatly improved, and the intake of feed can be greatly increased to achieve good weight gain. .

Moreover, the granular feed of the present invention has low hardness and softness, and despite this, has high fluidity and is easy to handle.

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

Example 1 [Table 1] Ingredient Weight part white sugar 50.0 glucose 25.0 liquid sugar 90.0 fat 40.0 Flour 360.3 fishmeal 37.0 skim milk 375.0 acids 0.1 Flavor 1.0 Teiajiryo 2.6 Vitamins and minerals honey box 19.0 Total 1000.0 first the In the raw materials shown in the table, materials other than white sucrose, glucose, liquid sugar and fats and oils were 100k / hour.
After continuously supplying and mixing the mixture at a ratio of g, the mixture was continuously supplied to a stirring granulator Shigi mixer (manufactured by Shiyugi) at the same supply ratio.

In addition, among the raw material formulations shown in Table 1 above, upper sucrose,
Glucose, liquid sugar and fats and oils are preliminarily mixed with water (15% by weight based on the feed composition in Table 1) at 50 to 60 ° C. to form a liquid mixture. The feed was continuously fed to the Shugi mixer at the feed rate shown in the feed formulation.

After agitating and granulating with a shugi mixer, the resulting granules were introduced into a vibrating fluidized bed dryer (manufactured by Nisshin Engineering Co., Ltd.) and dried with hot air at 110 ° C to a hardness of 1.80 kg / c.
Dry granules having m ³ and a water content of 11.8% by weight were obtained.

This granular material was prepared by 42 mesh (mesh size 0.35 mm), 16 mesh (mesh size 1.00 mm), 10 mesh (mesh size 1.68 mm),
8 mesh (aperture 2.38mm) and 6 mesh (aperture)
(36.36 mm), and classified into the categories shown in Table 2 below.

[Table 2] Classification particle size range A 0.35 less B 0.35 mm or more 1.00mm less C 1.00mm or 1.68 mm less D 1.68 mm or more 2.38 mm less E 2.38 mm or more 3.36 mm less F 3.36 mm or more above the granular feed Among them, Category C feed (comparative feed)
And a feed of Category D (feed of the present invention) were placed in separate containers, and 7 weaned 21-day-old piglets (average weight at start: 6.8k)
g / head) for 7 days, the average intake of feed in category D was 189 g / day / head, while that in category C
Average feed intake was 66 g / day / head.

Among the above granular feeds, a feed of category F (comparison feed) and a feed of category E (feed of the present invention) were placed in separate containers, and 11 weaned 21-day-old piglets (at the beginning) (Average body weight: 6.1 kg / head), freely ingested for 7 days.
The average intake of the feed of Category C was 127 g / day / head, while the average intake of the feed of Category C was 77 g / day / head.

From the above results, the granular feeds of Category D and E corresponding to the granular feed of the present invention having a particle diameter in the range of 1.68 mm or more and less than 3.36 mm are classified into those having a particle diameter of less than 1.68 mm other than the present invention. It can be seen that the preference by piglets is higher than the granular feed of C and the granular feed of Category F having a particle size of 3.36 mm or more.

In addition, the granular feed of the present invention, Category D and Category E
Wet piglets were put into separate containers, and weaned 21-day-old piglets
When 10 pigs (mean weight 6.5 kg / head at the start) were fed freely for 7 days, the average intake of feed of category D was 129 g / day / head, and the average intake of feed of category E was 69 g / day. Days / head, indicating that among the granular feeds of the present invention, the granular feed having a particle size in the range of 1.68 mm or more and less than 2.38 mm has a higher preference for piglets.

Further, the feeds of Category B (comparative feed) and the feeds of Category C (comparative feed) were placed in separate containers, and were fed to 8 weaned 21-day-old piglets (average starting weight: 5.9 kg / head). After free intake for days, the average intake of Category B feed was 7g /
Days / head, and the average intake of feed of Category C is 101 g / day /
The feed of Category B was less inferior to pigs than the feed of Category C.

Claims (1)

(57) [Claims] 1. A granular feed for young animals, characterized in that the content of granules having a particle size of 1.68 mm or more and less than 3.36 mm is 50% by weight or more.