JP2008173044A - Fish and shellfish feed, fish and shellfish growth accelerator, fish and shellfish body color improver, fish and shellfish taste improver, fish and shellfish immunostimulant, and method for breeding fish and shellfish - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide fish and shellfish feed effective for growth acceleration, avoidance of disease, improvement in body-surface color, flesh quality and taste quality of cultured and/or cultivated fish and shellfish, a fish and shellfish growth accelerator, a fish and shellfish body color improver, a fish and shellfish taste improver, a fish and shellfish immunostimulant: and to provide a method for raising fish and shellfish. <P>SOLUTION: The method for raising fish and shellfish comprises making fish and shellfish ingest feed where rose hip or its processed product is added as an active ingredient, or the rose hip or its processed product itself as powder, a tablet or the like. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is intended to promote the growth of seafood, improve the body color of seafood, improve the taste of seafood, and enhance the immunity of seafood in the culture and / or farming of seafood. The present invention relates to an intended feed for seafood, a growth promoter for seafood, a body color improver for seafood, a taste improver for seafood, an immunostimulator for seafood, and a method for raising seafood.

  It is known that fish are thermogenic animals, and motility and food intake change with changes in the external temperature. In warm water fish such as eels and yellowtails, the behavior tends to become dull and the food intake decreases in the low water temperature period from late autumn to early spring, and in cold water fish such as rainbow trout in the high water temperature period such as summer. Such a tendency of poor feeding of seafood leads to a decrease in the weight of the seafood that is a commodity in the aquaculture industry, and causes a commercial negative effect.

  Regarding the problem of poor feeding of cultured fish and shellfish, for example, Patent Document 1 below discloses a feed for fish and shellfish characterized in that 15 to 80% of the protein contained is a protein derived from krill that has been enzymatically degraded. Disclosed and described to improve the growth rate of fish farms with the feed.

  In addition, poor food intake of seafood is not only a decrease in weight but also a decrease in physiological activity such as immunity, which may be a cause of the occurrence of diseases.

  Currently, there are two methods for treating diseases: a method in which a drug is adsorbed on feed and feed, and a method in which fish is soaked in water in which the drug is dissolved. For convenience, the drug is applied to the feed and feed. The method of adsorbing and administering is common.

  However, as mentioned above, the consumption of seafood decreases outside the range of the proper breeding water temperature, so that under such conditions, the amount of drug taken up is substantially less than the prescribed amount, and therefore the disease can be treated. In addition, the development of resistant bacteria has become a factor in the expansion of damage caused by fish diseases.

  Regarding the problem of the anti-disease power of cultured fish and shellfish, for example, Patent Document 2 below discloses a food feed for fish and shellfish culture that contains a banana, and the state of the cultured fish and shellfish is healthy and high in vitality. It is described that can be raised in.

  On the other hand, farmed fish have a negative image such as greasy, food smell, etc., which is one factor that hinders the consumption of general consumers. Therefore, in particular, in the aquaculture industry, there is a problem of wiping out such an image.

  Regarding the taste and quality of cultured fish and shellfish, for example, Patent Document 3 below discloses porous calcium silicate having a solubilization rate of silicic acid of 25% or more and an oil absorption of 150 ml / 100 g or more. Is disclosed, and it is described that the meat quality improving agent can improve the quality of meat such as sweetness, meat strength, and crunchiness even with cultured fish.

  Furthermore, various studies have been made to improve negative factors derived from appearance when fish and fillets are formed, such as body color blackening due to sunburn. For example, Patent Document 4 listed below contains red algae. Disclosed is a feed for improving body color and meat color of fish and shellfish.

On the other hand, rose hips, the fruit that occurs at the roots of the flowers of the genus Rosaceae, are considered to have the highest vitamin C content among plants, and are effective in preventing colds, preventing aging, and beautiful skin in humans It is known. In addition, it is also known that it contains a large amount of β-carotene, an antioxidant substance, iron involved in oxygen transport in body fluids, flavonoids, and the like. Furthermore, calcium, which plays an important role in bone formation, is contained in a form that is easily absorbed by the human body, and is expected to be effective in suppressing the occurrence of skeletal abnormalities. However, there has been no idea of using such a rose hip for aquaculture and / or farming of seafood.
JP 2004-041105 A JP 2004-201563 A Japanese Patent Application Laid-Open No. 07-087901 JP-A-11-276094

  The conventional techniques for promoting the growth of seafood to be cultivated and / or farmed, avoiding illness, improving body color, improving quality, improving taste, etc. have particular advantages and disadvantages. There has been a demand for the development of new and better technologies among aquaculture and / or farming companies.

  Therefore, the object of the present invention is to promote the growth of fish and shellfish to be cultivated and / or farmed, avoid disease, improve the body color, improve the quality, improve the taste, feed for fish and shellfish, An object of the present invention is to provide a growth promoter, a body color improving agent for seafood, a taste improving agent for seafood, an immunostimulator for seafood, and a method for raising seafood.

  As a result of various studies to achieve the above-mentioned object, the present inventors have surprisingly found that the rose hip, which is a fruit generated at the root of a flower of the genus Rosaceae, has been cultivated for seafood and / or Or it discovered that it could utilize effectively for a farming and came to complete this invention.

  That is, the present invention provides the following inventions.

  (1) A feed for seafood characterized by containing rosehip and / or a processed product thereof.

  (2) The feed for seafood according to (1) above, wherein the solid content contains 0.01 to 10% by mass of rosehip and / or processed product thereof.

  (3) A growth promoter for seafood characterized by containing rosehip and / or a processed product thereof as an active ingredient.

  (4) A body color improver for fish and shellfish containing rosehip and / or a processed product thereof as an active ingredient.

  (5) A taste improver for seafood characterized by containing rosehip and / or a processed product thereof as an active ingredient.

  (6) An immunostimulant for fish and shellfish containing rosehip and / or a processed product thereof as an active ingredient.

  (7) A method for raising seafood, comprising administering rosehip and / or a processed product thereof to seafood.

  (8) The method for raising seafood according to (7), wherein the growth of the seafood is promoted by administering rosehip and / or a processed product thereof to the seafood.

  (9) The method for raising seafood according to (7) above, wherein the body color of the seafood is improved by administering rosehip and / or a processed product thereof to the seafood.

  (10) The method for raising seafood according to (7), wherein the taste of the seafood is improved by administering rosehip and / or a processed product thereof to the seafood.

  (11) The method for raising seafood according to (7), wherein the immunity of the seafood is activated by administering rosehip and / or a processed product thereof to the seafood.

  According to the present invention, the above-described fish and shellfish feed, fish and shellfish growth promoter, fish and shell color improver, fish and shellfish taste improver, and fish and shellfish immunostimulant are cultured and / or cultured fish and shellfish. This product is administered to sea bream and eats rose hips, an active ingredient, to promote the growth of seafood, improve the body color of seafood, improve the taste of seafood, and enhance the immunity of seafood. Can be

  According to the present invention, rose hips, which are active ingredients, are fed to fish and shellfish that are cultivated and / or cultivated, and are allowed to act in the body, thereby promoting the growth of fish and shellfish, It can improve, improve the taste of seafood, and activate immunity of seafood.

  The rosehip used in the present invention is a fruit produced at the root of a flower of the genus Rosaceae. There are over 200 kinds of Rosaceae belonging to the genus Rosaceae, Rosa Canina, Naniwaibara, Neubara, Salamander, and any of them may be used in the present invention. Particularly preferred is Rosa Canina.

In the present invention, those obtained by cutting or pulverizing the above-mentioned rose hips to an appropriate size, or dried products thereof are preferably used. Moreover, the extract extracted from the said rose hips as a raw material by well-known means, such as a steam distillation method and a solvent extraction method, or its dried material can also be used.
The feed for fish and shellfish of the present invention is characterized by containing the above-mentioned rose hips or processed product thereof, and various known feed materials can be used as the basic feed material. For example, fish meal, starch, wheat flour, fish oil, bran, rice bran, okara, soybean oil meal, minerals, vitamins and the like. In addition, the feed in this invention is the meaning containing a feed.

  The amount of rose hip added is preferably 0.01 to 10% by mass, more preferably 0.5 to 1.0% by mass in the feed solid content.

  Further, the growth promoter for fish and shellfish, the body color improver for fish and shellfish, the taste improver for fish and shellfish, and the immunostimulator for fish and shellfish according to the present invention each have the above-mentioned effects as the active ingredient of the rose hip or processed product thereof. As long as it is contained in such an amount that can be exhibited, its form is not particularly limited.

  In this case, the rose hips or processed product thereof can be added to the feed as described above to be ingested, or the rose hips or processed product thereof is processed into powder, tablets or the like different from the feed and ingested. It can also be made.

  The feed for seafood of the present invention, growth promoter for seafood, body color improver for seafood, taste improver for seafood, and immunostimulator for seafood can be applied to various seafood, Examples of saltwater fish include tuna, yellowtail, amberjack, tiger puffer, striped mackerel, red sea bream, sea bass, horse mackerel, flounder, mackerel, sea bass, sea bream, and other freshwater fish. Examples of invertebrates include abalone and prawn.

  Rosehip has already been widely used as a food ingredient, and its safety has been confirmed.

  In the present invention, an effective dose of rosehip for providing an effect as a growth promoter for seafood, a body color improver for seafood, a taste improver for seafood, and an immune enhancer for seafood is applied. As shown in the examples described later, for example, eels with an average weight of 50 g are 0.0025 to 0.5 g (as solids) per day, and red sea bream with an average weight of 820 g. It is 0.008 to 4.0 g (as a solid content) per animal per day.

  In the present invention, by bringing rosehips or processed products thereof into fish and shellfish, the effects of promoting growth, improving body color, improving taste, and enhancing immunostimulation, as shown in the examples described later, are brought about. Can do.

  That is, by blending rosehips into feed, or by administering rosehips themselves as a tablet, etc. to seafood, improving poor feeding outside the proper breeding water temperature range of cultured seafood and farmed seafood, and The immunity of fish can be activated. In addition, the taste and meat quality of the fish edible portion can be improved, and further, the occurrence of blackening of the fish body due to sunburn can be suppressed.

  Therefore, according to the present invention, it is possible to contribute to the production of healthy seafood by a farmer, to provide the consumer with good quality and good quality seafood, and to contribute to the expansion of the consumption of cultured fish.

  EXAMPLES Hereinafter, the present invention will be specifically described with reference to examples. However, these examples are not particularly limited to fish species and the like, and do not limit the scope of the present invention.

<Test Example 1> Test for promoting growth
The effect of administration of diet containing rosehip on eel growth was investigated. As a test feed for this, rose hips (produced in Chile, purchased from Nippon Flour Pharmaceutical Co., Ltd.) were pulverized and added to eel blended feed (Fuji Milling Co., Ltd., trade name “Fuji Rich for Sericulture Feed”). , 0.1, 1 and 10% by mass, and feeds were prepared, which were designated as feed R0.01, feed R0.1, feed R1 and feed R10, respectively. Moreover, the thing which does not mix | blend rose hips was made into the control feed. Table 1 shows the composition of each feed.

  175 eels with an average weight of 50 g were fed to a 2 ton aquarium, and the above feeds were fed for 8 weeks to raise eels. The breeding water was pumped from groundwater and was not heated or cooled. The water temperature was 24 ° C. at the start of breeding, 22 ° C. after 4 weeks from the start of breeding, 20 ° C. after 6 weeks from the start of breeding, and 19.5 ° C. after 8 weeks from the start of breeding. In addition, food was stopped the day before the pick-up date in all tanks.

By the following formula, the feed efficiency, the meat increase coefficient, the daily feeding rate, and the daily growth rate in the breeding over 8 weeks were calculated.
・ Feed efficiency = weight increase during feeding period / feeding amount × 100
・ Meat increase coefficient = feeding amount / weight increase during breeding period ・ daily feeding rate = (feeding amount / number of breeding days) × 100 / (average body weight during period × average number of fish during period)
-Daily growth rate = (weight gain / number of breeding days) x 100 / average body weight during the period The results are shown in Table 2.

  As is clear from Table 2, eels fed the test diet blended with rosehip powder were superior in terms of feed efficiency, daily feeding rate, and daily growth rate. Moreover, the most excellent result was obtained when the test feed containing 1% by mass of rosehip powder was fed.

  Moreover, the result of having measured the average body weight of each group in the said breeding period and the change of water temperature is shown in FIG. As shown in FIG. 1, all of the rose hip administration groups had an average weight higher than that of the subject group.

  From the above results, it became clear that administration of rose hips can promote the growth of eels. In addition, the growth outside the proper breeding water temperature range of 19.5 to 20.5 ° C. is particularly remarkable, and the addition of rosehip powder improved the feeding outside the proper breeding water temperature range. It was suggested.

<Test Example 2> Test on body color improvement
The effect of administration of feed containing rosehip on the body color of red sea bream was examined. As a test feed for this, rose hips (produced in Chile, purchased from Nippon Flour Pharmaceutical Co., Ltd.) were pulverized and blended with red sea bream compound feed (Fuji Milling Co., Ltd., trade name “Sericulture Feed Super SE”). A feed was prepared. The blending amount was 1% by mass where feed efficiency was highest in Test Example 1 above. Moreover, the thing which does not mix | blend rose hips was made into the control feed.

  20 red sea breams with an average weight of 820 g were fed to a 3 ton aquarium, and the above feeds were fed for 12 weeks to raise red sea bream. In addition, food was stopped the day before the pick-up date in all tanks.

  The picked red sea bream is wrapped in a wrapping film for food packaging, and then the brightness, redness, and yellowness of the dorsal base, lateral line scale, and prone base are digitized using a spectroscopic colorimeter CM-2002 (Minolta). did. The results of averaging the numerical values are shown in Table 3 below.

  As shown in Table 3, compared to the case of feeding the control feed, red sea bream bred with the test feed formulated with rosehip powder has a high overall brightness, and there is a tendency for redness to be strong in the side scale portion. It was shown that body color blackening due to sunburn etc. was prevented.

  From the above results, it became clear that administration of rosehip can improve the body color of red sea bream.

<Test Example 3> Taste improvement test
A taste test was conducted on the eels after completion of the breeding test in Test Example 1. That is, the edible portion of the eel was sufficiently heated in a gas oven set to 200 ° C., and the tasting test was performed by setting 17 panelists as white grill. The evaluation was made into 5 grades,-was inferior, ± could not be confirmed, + was slightly recognized, ++ was recognized, and ++ was considerably recognized. The results of averaging the evaluations are shown in Table 4 below.

  As a result, as shown in Table 4, the eels fed with the test feed blended with rosehip powder were superior in sweetness, umami, and texture compared to the case of feeding the control feed.

  On the other hand, a taste test was conducted on red sea bream after completion of the breeding test in Test Example 2 in order to investigate the case of raw food. That is, the mussels of red sea bream were sashimi, 17 panelists were set, and a tasting test was conducted in the same manner as the eel. The results of averaging the evaluation are shown in Table 5 below.

  As a result, as shown in Table 5, the red sea bream fed with the test feed blended with rosehip powder was superior in both sweetness, umami and texture as compared to the case of feeding the control feed. The result that especially sweetness became strong was obtained.

  From the above results, it became clear that administration of rosehip can improve the taste of eel and red sea bream.

<Test Example 4> Test on immunostimulation
The effect of administration of diet containing rosehip on the immunity of red sea bream was investigated. As a test feed for this, rosehip (produced in Chile, purchased from Nippon Flour Pharmaceutical Co., Ltd.) was pulverized and blended with red sea bream compound feed (Fuji Milling Co., Ltd., trade name “Sericulture Feed Super SE”). A feed was prepared. The blending amount was 1% by mass where feed efficiency was highest in Test Example 1 above. Moreover, the thing which does not mix | blend rose hips was made into the control feed.

  Red sea bream with an average weight of 70 g was fed to a 2 ton aquarium adjusted to a water temperature of 17 to 18 ° C., and each of the above feeds was fed for 12 weeks to raise red sea bream. In addition, food was stopped the day before the pick-up date in all tanks.

After rearing for 12 weeks, 25 red sea breams were arbitrarily picked from each tank and immersed in a gram-negative bacterium Edwardsiella tarda adjusted to 3.2 × 10 ⁸ cells / ml for 60 minutes. Then, it was housed in clean breeding water, and the survival rate of red sea bream after 2 weeks was examined.

  As a result, as shown in Table 6, the survival rate after the immersion attack by the Gram-negative bacilli Edwardsiella tarda was higher in red sea bream fed with the test diet containing rosehip powder, compared with the case of feeding the control diet.

  From the above results, it became clear that administration of rosehip can stimulate immunity of red sea bream.

3 is a chart showing the growth performance of each test plot in the breeding test of Example 1.

Claims (11)

  A feed for seafood characterized by containing rosehip and / or a processed product thereof.   The feed for fish and shellfish according to claim 1, comprising 0.01 to 10% by mass of rosehip and / or a processed product thereof in a solid content.   A growth promoter for seafood comprising rosehip and / or a processed product thereof as an active ingredient.   A body color improving agent for seafood characterized by containing rosehip and / or a processed product thereof as an active ingredient.   A taste improver for seafood comprising rosehip and / or a processed product thereof as an active ingredient.   An immunostimulant for fish and shellfish containing rosehip and / or a processed product thereof as an active ingredient.   A method of raising seafood, comprising administering rosehip and / or a processed product thereof to seafood.   The method for raising seafood according to claim 7, wherein the growth of the seafood is promoted by administering rosehip and / or a processed product thereof to the seafood.   The method for raising seafood according to claim 7, wherein the body color of the seafood is improved by administering rosehip and / or a processed product thereof to the seafood.   The method for raising seafood according to claim 7, wherein the taste of the seafood is improved by administering rosehip and / or a processed product thereof to the seafood.   The method for raising seafood according to claim 7, wherein the immunity of the seafood is activated by administering rosehip and / or a processed product thereof to the seafood.

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