JPH01112954A - Feed for culturing eel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to feed for eel farming.

[Conventional technology]

Unlike sea bream, salmon, etc., eel has a unique feeding style, so the feed for eel farming is in the form of paste bait.

Eel also has a very strong palatability, and its paste bait maintains the softness, smoothness, and elasticity suitable for the eel to eat and shred with its mouth, and is also highly palatable due to the eel's active feeding movements. Also, roses must have the ability to survive underwater for long periods of time.

Usually, approximately 20% by weight of α-starch is used as a binder. However, α-starch has the following drawbacks. In other words, if you knead it for a long time or leave it for a long time, it will deteriorate and its cohesive strength and elasticity will rapidly decrease, resulting in contamination due to the dispersion of feed into the water and a decrease in the eel's feeding efficiency. It has its drawbacks.

Traditionally, white fish meal made from white fish has been mainly used as fish meal, but in recent years,
Brown fish meal, which is made from sardines and other ingredients, is starting to attract attention due to its price and nutritional value. However, Brown Fitzschmir is compared to White Fitzschmir.

Although it has the above-mentioned advantages, it has poor viscoelasticity.

This causes water pollution and reduced feed efficiency.

Therefore, active gluten, sodium polyacrylate, and guar gum are used as binders in addition to α-starch.

Although CMC salts and the like have been used, all binders have drawbacks, and the reality is that none of them is fully satisfactory.

Activated gluten exhibits strong viscosity when kneaded with water, but it takes a long time to knead to achieve that viscosity, and sodium polyacrylate gels in the presence of Ca salts and has poor shape retention. Although the water retention is good, the water retention is insufficient. Guar gum does not have sufficient shape retention, and since it is a natural product, it is easily spoiled and has the disadvantage of causing significant water pollution. C
MC salt has good water retention and can improve disintegration in water, but
Fundamentally, it does not have the same elasticity as α-starch, and a fish feed containing α-starch and polycarboxylic acid has been disclosed (Japanese Patent Application Laid-Open No. 130394/1983), but it has caking properties and stickiness. There is a problem with this point.

[Problem that the invention seeks to solve]

As a result of intensive studies to obtain a binding agent that satisfies the required performance of eel feed, the present inventors found that it is possible to compensate for the disadvantages of CMC salt, which has the least disadvantages, while retaining the conventional advantages. The present invention was achieved by discovering that.

[Means for solving problems]

That is, the present invention provides an eel feed characterized by using a CMC salt and a polyvalent carboxylic acid in combination.

CMC salts include, for example, Na, ammonium salts, and have various degrees of etherification (hereinafter referred to as DS).

Viscosities can be used, but preferably DSo, 5~
The 1.5.1% viscosity is not particularly limited as long as it is 15,000 cps or less. The degree of etherification indicates how many carboxymethyl groups are substituted with ether bonds in one glucose unit of cellulose.

Examples of polyhydric carboxylic acids include citric acid, malic acid, and tartaric acid, but are not particularly limited.

Addition of polyhydric carboxylic acid alone improves sludge, but the stickiness increases, making handling and cleaning up after the kneading machine very time-consuming.

If the amount of CMC salt or polyvalent organic acid added is small, there is no effect, and if the amount of CMC salt added is large, it becomes hard and no cracks occur. Also, if the amount of organic acid added is large, the coating will not swell well, but it will become sticky.

Therefore, the addition rate of CMC salt is 0.1 to 5.0% by weight based on the feed, preferably 0.5 to 2.0% by weight, and the addition rate of polycarboxylic acid is 0.1 to 10% by weight based on the feed. %, preferably 1.0 to 7.0% by weight.

In the present invention, any material that can be used as a raw material for eel farming feed can be added and used in combination.6 Examples of the present invention are shown below, but the present invention is not limited thereto.

〔Example〕

Examples and Comparative Examples Fish meal, α-starch, CMCNa, polyvalent carboxylic acid, vitamins and minerals, and feed yeast were mixed well in the proportions shown in Table 1, 120 parts of water was added, and the mixture was kneaded for 3 minutes using a kneading machine. Then, a paste was produced and a sensitivity test and a water disintegration test were conducted.

For the water disintegration test, take 100g of the bait, roll it up and add it to 70g of water.
The test was carried out in an IQ beaker to which 0d was added.

Margin below Table 2 evaluation Stiffness, stiffness, water disintegration resistance: ◎: Very good.

O: Good.

△: Normal.

X: Bad Betocchi; O: No beetokki.

Δ: Slightly sticky.

×: Quite sticky [Effect of the invention] From the results in Table 2, it was found that by using CMC salt and polyvalent carboxylic acid together, they compensated for each other's shortcomings, and it was possible to obtain eel feed with very good physical properties. .

Patent Applicant: Sanyo Kokusaku Pulp Co., Ltd. Procedural Amendment 6. November 18, 1988, 1□□YoE8E,U 7 "B1, Incident Indication M M Ilt"J 62-270433%"
2. Relationship with the invention name case Patent applicant address: 1-4-5-4 Marunouchi, Chiyoda-ku, Tokyo; agent address: 100 Address: 234 Eiraku Building, 1-4-5 Marunouchi, Chiyoda-ku, Tokyo.
Telephone number: 214-2861 I4 clause - a ≥ zu 0 bow) 117', -\ Evening (A request for examination of the application was submitted on the same date), the details of the detailed description of the invention in the specification to be amended, and the content of the amendment We will correct the following points of the male and female cattle.

:Page 1, line 16 It says, ``Eel is sea bream, salmon.'' We will correct the eel to be sea bream or salmon.

Claims (1)

[Scope of Claims] 1. A feed for eel farming characterized by using a carboxymethylcellulose salt and a polyvalent carboxylic acid in combination. 2 Carboxymethyl cellulose salt is 0.1 to 5
．． 0% by weight, polyhydric carboxylic acid 0.1-10.0 relative to feed
% by weight of the eel farming feed according to claim 1.