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Fermented asparagus-containing black sea bream feed and preparation method thereof

A technology of feed and black sea bream, which is applied in the field of black sea bream feed and its preparation, can solve the problems of low absorption and utilization rate of oligosaccharides and proteins, high content of agar polysaccharides and crude fiber, etc., and achieve good food-attractiveness and utilization of soluble polysaccharides The effect of high rate and reduced toxicity

Inactive Publication Date: 2016-12-07
SHANTOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to add the fermented asparagus produced by the biological fermentation technology into the compound feed of black sea bream in an appropriate proportion to solve the problem that when asparagus is used as the feed of black sea bream, the content of agar polysaccharide and crude fiber is more, oligosaccharides and Problems such as low protein absorption and utilization

Method used

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  • Fermented asparagus-containing black sea bream feed and preparation method thereof
  • Fermented asparagus-containing black sea bream feed and preparation method thereof
  • Fermented asparagus-containing black sea bream feed and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 is in order to detect the optimum addition amount of fermented asparagus, adopt the fermented asparagus of adding 0 (contrast), 5% (F1), 10% (F2), 15% (F3), 20% (F4) respectively Mustard dry powder replaces fish meal or other plant protein sources to make black sea bream compound feed. The feed formula is as shown in Table 1 (values ​​are percentages by weight), and the preparation steps are as follows:

[0026] ① Preparation of asparagus powder: collect fresh asparagus, clean it, remove impurities, dehydrate it with a centrifugal dehydrator and dry it in the sun. Put the dried asparagus into a drying box to dry, control the moisture content of the dried asparagus between 10% and 15%, then pulverize it to 40 mesh with a pulverizer, and set aside;

[0027] ②Preparation of fermented asparagus powder: crush 3% (w / v) asparagus to a particle size of 40 mesh, add distilled water, then add 2% (w / v) NaCl, mix evenly, adjust pH to 7.6, and extinguish at 121°C Bacte...

Embodiment 2

[0039] In order to compare the promotion effect of the feed formula containing fermented asparagus and unfermented asparagus on the growth performance of black sea bream, 5% of fermented asparagus (F1) and 10% of unfermented asparagus (G1, G2) were used respectively. , G2 group is the feed that adds commercial mannan oligosaccharides by 2% mass ratio on the basis of G1 group feed, makes black sea bream compound feed, and feed formula is as shown in table 2 (value is percentage by weight), and preparation step is implemented with example 1.

[0040] Table 2 Composition of different feed formulations

[0041]

[0042] Note: 1. Starch and soybean meal are commercially available products, which can be purchased from the domestic raw material market;

[0043] 2. The fish meal is American fish meal, with a crude protein content of 68% and a fish oil content of 9.4%;

[0044] 3. Complementary vitamins, mixed minerals, calcium dihydrogen phosphate, choline chloride and other auxi...

Embodiment 3

[0046] With the formulated feed prepared in Example 1, approximately 13.3 g of black sea bream were raised. Present embodiment is the net cage culture that fish raft is carried out in sea, and culture net cage is 1 * 1 * 1.5m, has cover net, in order to escape and waterfowl. Three parallel experiments were performed in each group, and 30 fish were tested in each parallel experiment. During the breeding period, the temperature was 20-26° C., and the salinity was 27-31 degrees. After 60 days of cultivation, various growth indicators were measured. The results of Example 1 are shown in Table 3.

[0047] Table 3 Effects of different fermented asparagus feeds on the growth of black sea bream

[0048]

[0049] Note: FCR is feed conversion rate; SGR is specific growth rate; PPV is protein storage rate; data are mean ± standard error; in peer data, those without the same lowercase letters indicate significant differences (P<0.05).

[0050] From the growth index of table 3, in the...

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Abstract

The invention relates to the field of fish feeds, in particular to a fermented asparagus-containing black sea bream feed and a preparation method thereof. The feed is prepared from a protein source raw material, a fat source raw material, a sugar source raw material and an auxiliary material, and further comprises 5 to 20 weight percent of fermented asparagus powder; the protein source raw material is prepared from fish meal, bean pulp and fermented asparagus; the fat source raw material is prepared from fish oil or soybean oil or a mixture of the fish oil and the soybean oil; the sugar source raw material is starch; the auxiliary material is prepared from one of or a mixture of several of mannan oligosaccharide, composite vitamins, a mixed mineral substance, microcrystalline cellulose, soybean lecithin powder, DL-methionine, monocalcium phosphate, choline chloride, ascorbic acid and sleeve-fish ointment. According to the fermented asparagus-containing black sea bream feed and the preparation method thereof, compared with non-fermented asparagus powder, the fermented asparagus powder added into the black sea bream feed has more ideal nutritional components. Compared with the existing black sea bream feed, the fermented asparagus-containing black sea bream feed disclosed by the invention has the advantages that the protein utilization rate, the fat utilization rate, the soluble polysaccharide utilization rate and the energy conversion rate of the fermented asparagus by black sea breams are higher.

Description

technical field [0001] The invention relates to the field of fish feed, in particular to a black sea bream feed containing fermented asparagus and a preparation method thereof. Background technique [0002] Black sea bream (Sparus macrocephalus) belongs to the order Perciformes and is an important economic fish in the waters of the Yellow Sea, the Bohai Sea and the southern Taiwan Strait. It has a wide range of adaptability to salinity and temperature, has a fast growth rate, is easy to cultivate artificially, and has tender meat Delicious and rich in nutritional value, it is very popular in domestic and foreign markets. Most of the bait for black sea bream farming is still directly fed fresh or frozen low-value small trash fish, and it is also ground into fish paste for feeding, which not only causes a huge waste of protein sources, but also causes high feeding costs and seriously pollutes the environment , Spreading diseases, long-term use of frozen small miscellaneous fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/22A23K10/12A23K10/30A23K20/158A23K20/163A23K20/174A23K20/142A23K20/26A23K20/105A23K10/18A23K20/20
CPCY02A40/818
Inventor 温小波朱大世刘燕
Owner SHANTOU UNIV
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