JPH06181698A - Feed for eel - Google Patents

Abstract

PURPOSE:To obtain a feed for an eel which is a live form or corresponding thereto and excellent in palatability. CONSTITUTION:This feed for an eel is characterized by mixing sugars as a feeding attracting substance in a raw material for the feed for the eel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eel feed, and more particularly to an eel feed having excellent palatability.

[0002]

2. Description of the Related Art In eel aquaculture, it is desired that the feed has a good palatability in order to improve productivity. As the palatability substance (feeding inducer), there are clams, daphnia, threadworms and Japan. Known are near-sea fish, Antarctic krill, etc. In recent years, artificial mixed feeds for fish farming using white fish meal as the main protein source have become widespread, and these palatability substances have been added to artificial blends for fish farms as processed powders. It is known that the incentive effect is almost lost.

On the other hand, as described in, for example, JP-A-62-118852, there is known a feed for fish farming, which is prepared by grinding raw squid, mixing vitamins and minerals, then filling a casing and freezing. Therefore, although the palatability is superior to that of the powder-mixed feed, the development of a feed having a better palatability is desired.

[0004]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention It is an object of the present invention to provide an eel feed with improved palatability in the conventional powdered eel feed and raw or raw eel feed.

[0005]

Means for Solving the Problems As a result of various studies to develop an eel feed having good palatability, the present invention provides an eel feed having extremely good palatability and good physical properties when sugars are mixed in the eel feed. The present invention has been completed by finding that

[0006] In the present invention, sugars are mixed into the raw material of eel for eel as a feeding inducer.
Raw sugar such as red and medium white, purified sugar such as white and medium white, and processed sugar such as liquid sugar can be used.

Regarding the amount of sugars to be mixed in the raw material for eel feed, if the amount of the mixture is small, the eel will not stick to the feed well, and if it is too large, the effect will be diminished. About 0.5% to 3.5% is preferable for about 10% raw or uncooked eel feed, and about 1.3 times the amount of water is added to the feed for powdered eel feed. Since it is kneaded and kneaded for feeding, it is desirable to mix about 1.5 to 5.0%.

In the present invention, as the raw material for eel for eel mixed with the above-mentioned sugars, raw eel for eel having a water content of about 60 to 80% or raw for eel, for example, raw materials such as squid and Antarctic krill, Vitamins, minerals, flavors,
Examples include raw materials such as palatability substances, amino acids, and preservatives. In the case of powdered eel feed, for example, protein raw materials such as fish meal, yeast, krill meal, alpha starch, and binders such as CMC,
Vitamins, minerals, and other raw materials may be used, which are appropriately selected and used in combination.

As a means for mixing sugars, it may be added at an appropriate step during the manufacturing process, and in powdered eel feed, it may be added at the time of kneading with water during feeding.

The eel feed of the present invention can be used from shirasu eel to adult eel, and its preference is particularly remarkable for shirasu eel.

[0011]

[Example 1] The body of a frozen squid was put on a chopper with a plate having a hole diameter of 6 mm and further ground with a chopper having a plate having a hole diameter of 1 mm. This ground squid, vitamins, mineral mixture and sugar (white sugar)
The amount shown in Table 1 was put into a silent cutter and mixed well. After filling the aluminum foil casing with these, -30 ℃
It was frozen in to obtain the eel feed of the present invention.

[0011]

[Table 1]

After thawing these feeds, they were coated on paper and
Put into an aquarium containing eel 1048 with an average of 0.19 g.
The palatability response was observed. The results are shown in Table 2, and it was confirmed that the eel feed of the present invention has an extremely excellent fish collecting and feeding effect.

[0013]

[Table 2]

Next, except for the 5 wards, except for the 5 wards, the feeding results after feeding for 10 days were as shown in Table 3, and the eel feed of the present invention had an extremely excellent feeding performance.

[0015]

[Table 3]

[0016]

[Example 2] Sugar (super-sucrose) was added at a ratio shown in Table 4 to a commercially available compounded feed for shirasu (Japanese agricultural products), mixed and pulverized to obtain an eel feed.

[0017]

[Table 4]

To 100 parts of each of these feeds, 200 parts of water was added to the outer part, and the mixture was kneaded with a mixer to give a kneaded feed, which was fed to 511 eels in each section to conduct a feeding test and a breeding test. As a result, the feeding test is shown in Table 4 and the feeding results are shown in Table 5, and the eel feed of the present invention was extremely good in both palatability and feeding results.

[0019]

[Table 5]

[0020]

INDUSTRIAL APPLICABILITY The present invention has an improved eel preference compared to conventional eel feeds by mixing sugars into the raw material for eel feeds as a feed inducer, and also has excellent breeding results. It will be.

Claims (1)

[Claims] 1. An eel feed characterized by mixing sugars as a feed inducer into an eel feed raw material.