JPS62143648A - Cmc, production thereof and fish raising compound feed for moist pellet - Google Patents

Abstract

PURPOSE:To obtain a fish raising soft compound feed for moist pellets having good physical properties without stickiness, by blending, carboxymethyl cellulose (CMC) containing adsorbed animal or vegetable fat or oil. CONSTITUTION:An animal or vegetable fat or oil is added, mixed and adsorbed on sodium carboxymethyl cellulose or potassium carboxymethyl cellulose. The resultant sodium carboxymethyl cellulose or potassium carboxymethyl cellulose containing the adsorbed animal or vegetable fat or oil is then blended with fish raising compound feed for moist pellets.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a fish culture compound feed for moist pellets, and is an invention useful in the field of fish aquaculture.

[Conventional technology]

Currently, moist pellets are mainly used as feed for aquaculture of yellowtail, sea bream, etc. Moist pellets are
It is a mixture and granulation of raw bait (raw fish, frozen fish, or minced fish) and compound feed, and has a palatability close to that of raw bait.
It has excellent meat-increasing properties and is easy to handle during feeding.

The compounded feed used for moist pellets is mainly made of fish meal, wheat flour, soybean oil cake, glutin meal, rice bran oil phase, etc., and contains vitamins and minerals necessary for fish growth, and is used to give moist pellets appropriate adhesiveness and hardness. water-soluble polymer 'Jt (sodium alginate, sodium carboxymethylcellulose, guar gum, xafta/
gum, locust bean gum, carrageenan, and sodium polyacrylate). Currently, a large number of such fish feeds for moist pellets are commercially available.

[Problem to be solved by the invention]

Moist pellets usually contain 50% of the total raw food mixture.
~6096. This is because the physical properties of moist pellets are required to be less sticky, easier to handle when feeding fish, and less likely to dissipate or dissolve when administered into water. On the other hand, the economical efficiency of moist pellets is that raw bait is much cheaper than mixed feed, so the greater the proportion of raw bait mixed in, the more advantageous it becomes, and the palatability for fish improves. Currently, there are a number of formulated fish feeds for moist pellets on the market, depending on the target fish and the mixing ratio of live bait, but when the mixing ratio of live bait is 60% or more, moist pellets with good physical properties are I didn't get it at all.

[Means for solving problems]

In the present invention, the mixing ratio of moist pellets with live bait is 60%.
The above cases have been researched and perfected with the aim of providing moist pellets with good physical properties.

As a result of many years of research on moist pellets, the present inventors found that sodium carboxymethyl cellulose and potassium carboxymethyl cellulose (hereinafter collectively referred to as CMC) were used when producing moist pellets.
I came to think about the mechanism of action as follows.

When mixing raw feed and compound feed to make moist pellets, some of the CMC contained in the compound feed absorbs water contained in the feed and becomes viscous, and the remaining CM
C has two functions: it absorbs water that cannot be absorbed by other raw materials. In other words, in order for CMC to produce viscosity, K requires a certain amount of water, and when there is little water, it only works to absorb water and produces almost no viscosity. The amount of water absorbed by CMC is much greater than that of other raw materials, so the greater the amount of CMC that only acts on water absorption, the harder the Moist Pellets will be, while the Moist Pellets with a larger amount of CMC, which produces viscosity, will be softer and sticky. There will be a lot of

The mixture ratio of moist pellets and live bait is 50-60% of the total.
%, CMC produces viscosity and C acts only on water absorption.
A good moist pellet with a good balance of MC will be produced, but if the mixing ratio of live bait exceeds 60% of the total, the proportion of CMC that produces viscosity will increase, resulting in a moist pellet that is soft and sticky. be. Moist pellets that are soft and sticky tend to cause pellets to stick to each other, making it difficult to work with during feeding, and also impairing fish feeding.

The present invention significantly slows down the water absorption rate of CMC by adsorbing animal and vegetable oils in advance to all or part of the CMC to be mixed into the fish culture formulation for moist pellets.
The purpose is to reduce the proportion of CMC that produces viscosity during mixing and granulation of feed and raw feed, and by using such feed, moist pellets with good physical properties can be obtained.

(In the present invention, animal and vegetable oils and fats include those naturally occurring without particular limitation, such as pollack liver oil, sardine oil, cowpea oil, squid oil, beef tallow, lard, soybean oil, corn oil, sesame oil, cottonseed oil, Rice oil, olive oil, rapeseed oil,
Any one of palm oil, coconut oil, safflower oil, camellia oil, etc., or a mixture of two or more of these can be used.
) can be easily obtained by adding and mixing animal and vegetable oils (in the case of solid fats, heat them to make them liquid) to CMC. CMC can adsorb the same amount of fats and oils as its maximum weight, but it is also possible to add excess fats and oils and mix them into feed as is.

[Function] Oil-adsorbing CMC can control the water absorption rate depending on the type and amount of added oil and fat, and it is possible to prepare fish feed for moist pellets according to the target fish and the mixing ratio of raw food. be.

When moist pellets are prepared using the fish culture feed for moist pellets according to the present invention, the viscosity is low during mixing and granulation, so that soft pellets without stickiness can be produced.

When this is left for a while (5 to 15 minutes), the CMC absorbs water and becomes a hard, non-sticky moist pellet.

In addition, with respect to other water-soluble polymer substances in which animal and vegetable oils and fats were adsorbed, no effect similar to that of CMC was observed.

〔Example〕

EXAMPLES Next, the present invention will be specifically explained with reference to Examples, but the present invention is not limited to these Examples.

(Example I) Table 1 shows the composition of the mixed feed. The CMC used here is
Carboxymethylcellulose sodium, Celogen H-1707 (39500P8) manufactured by Dai-Kogyo Seiyaku Co., Ltd. The fat-and-oil adsorption CMC is made by adsorbing walleye cod liver oil at a ratio of 3:1 to this CMC. CMC included in A1-3.

The oils and fats contained in A2 and A3 are the same amount.

A1 to 3 feeds were mixed with sardine mince and 35:6 respectively.
After mixing in a mixing granulator (manufactured by Hiraga Seisakusho Co., Ltd.) at a ratio of 5 (feed: 35), moist pellets with a diameter of 8 fl were produced. After observing the condition of this beret, the weight was 500.
The product was administered to ~600g of fish, and the feeding status, dissipation into water, and dissolution were observed.

Result A1: Since the pellets did not form, the pellets were made into dumplings and administered to the fish, but since the pellets were large, feeding was poor. 30-40% of the feed was lost and there was a lot of leaching.

A2 was almost the same as A1.

A3: Immediately after granulation, the pellet is soft, but it is 5-10
When separated, it becomes hard and non-sticky. Feeding was good, and there was almost no dissipation or release.

From the above results, it was found that the effect of oil-absorbing fr CMC is remarkable, and that simply adding oil and fat to feed has no effect at all.

Table-1 Compound feed composition of Example I Fishmeal 60% 60% 60% Soybean oil cake 15 15
15 flour 20 19 1
9 Vitamin Premix 2 2 2 Oil adsorption CMC--4 CMC33- Total 100 100 100 (Example U) Table 2 shows the blended feed composition. The CMC used here is
Carboxymethylcellulose sodium, Celogen H-1707 (3950 cPs) manufactured by Dai-Kogyo Seiyaku Co., Ltd. The oil/fat adsorption CMC is made by adsorbing beef tallow to this CMC at a ratio of 4=1. CM included in ya 1 to 3
The oils and fats contained in C, A2, and 3 are the same amount.

25:7 with minced sardines and feed of 1 to 3 sardines.
Moist pellets were prepared in the same manner as in Example I at a ratio of 5 (feed: 25) and observed.

Result A1: Since the pellets did not form, they were made into dumplings and administered to the fish. Feeding was poor, with about half of the food lost;
There were too many baths.

A2 It was the same as A1 and tXton.

Ya 3 The pellet is soft immediately after granulation, but after granulation 5
After ~10 minutes, it becomes hard and not sticky at all. The berets do not stick together and feeding is good. There was very little dissipation or melting.

From the above results, the effect of oil adsorption CMC is remarkable.
It became possible to produce moist pellets of live bait 7596.

Table-2 Compound feed composition of Example ■ 41 A2 A3 Fishmeal
60% 60% 60% soybean oil cake 1
5 15 15 flour
19 18 18 Vitamin Premix 2 2 2 Oil and fat adsorption CMC5 CMC44- Beef tallow -1- [Effects of the invention] The present invention is oil and fat adsorption CMC, its production method, and a fish culture feed for moist pellets containing the same,
By utilizing the present invention, moist pellets having good physical properties can be obtained. In particular, the effect is remarkable when the mixing ratio of live bait is 60 to 80%. This contributes to reducing feed prices, simplifying feeding operations, and preventing contamination of aquaculture farms.

Claims (1)

[Claims] 1. Sodium carboxymethylcellulose and potassium carboxymethylcellulose to which animal and vegetable oils and fats have been adsorbed. 2. A method for producing carboxymethylcellulose sodium or carboxymethylcellulose potassium adsorbed with animal and vegetable oils, which is characterized by adding animal and vegetable oils to carboxymethylcellulose sodium or carboxymethylcellulose potassium. 3. Compounded fish feed for moist pellets, characterized in that carboxymethylcellulose sodium or carboxymethylcellulose potassium adsorbed with animal and vegetable oils is blended as a raw material.