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A kind of black sea bream feed and preparation method thereof

A technology for feed and black sea bream, which is applied to the field of black sea bream feed and its preparation, can solve the problems that black silk feed has not been reported, and there is little research on astragalus fodder, etc., and can achieve the ability of juvenile fish to actively resist stress and attract food. Good, high digestion and absorption effect

Inactive Publication Date: 2016-09-07
SHANTOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the above characteristics of asparagus, the development of asparagus as a feed has broad prospects, but there is still little research on asparagus feed at present, and there is no report on using it as a black silk feed

Method used

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  • A kind of black sea bream feed and preparation method thereof
  • A kind of black sea bream feed and preparation method thereof
  • A kind of black sea bream feed and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In order to detect the most suitable addition amount of asparagus, the black sea bream compound feed was made by adding 0 (control), 5%, 10%, 15%, 20% of asparagus dry powder instead of fish meal or other plant protein sources. Feed formula is as shown in table 1 (value is percentage by weight), and preparation steps are as follows:

[0022] ①Collect fresh asparagus, wash it, remove impurities, and dehydrate it with a centrifugal dehydrator. The speed of the centrifugal dehydrator is 3000-5000 rpm, and the centrifugal dehydration is 3-10 minutes.

[0023] ②Preparation of asparagus powder: put the dehydrated asparagus in a drying oven to dry, set the drying temperature to 70-85°C, and set the drying time to 4-5 hours, and control the moisture content of the dried asparagus at 10-15%, and then pulverized to 80-120 mesh with a pulverizer, and set aside.

[0024] ③Mixing: According to the feed formula shown in Table 1, crush the lump protein source raw materials and sugar ...

Embodiment 2

[0028] In order to obtain the best feed formula for black sea bream containing asparagus, on the basis of asparagus content of 5%, the ratio of raw materials and auxiliary materials was adjusted to make different black sea bream compound feeds. The feed formula is shown in Table 2 Show (numerical value is percentage by weight), preparation step is with embodiment 1.

[0029] Table 1

[0030]

[0031]

[0032] Note: a. Starch and soybean meal are commercially available products, which can be purchased from the domestic raw material market;

[0033] b. The fish meal is American fish meal, with a crude protein content of 68% and a fish oil content of 9.4%;

[0034] c. Asparagus powder protein content is 19.14%, fat content is 0.5%, crude fiber content is 5.8%, ash content is 28.77%, amino acid content (g / 100g, dry weight): threonine (Thr)*0.70, valine Acid (Vla)*1.11, Methionine (Met)*0.53, Isoleucine (Ile)*0.94, Leucine (Leu)*1.32, Phenylalanine (Phe)*0.83, Lysine (Lys)*...

Embodiment 3

[0040] With the formulated feed prepared in Example 1, approximately 9.8 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.

[0041] table 3

[0042] group

[0043] Note: The data are mean ± standard error; PPV: protein deposition rate; FER: feed conversion rate In peer data, those without the same lowercase letters indicate significant differences (P<0.05)

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Abstract

The invention relates to sparus macrocephalus feed and a preparation method thereof. The sparus macrocephalus feed comprises protein source raw material, fat source raw material, sugar source raw material and auxiliary material and is characterized by further comprising 5% of gracilaria lemaneiformis powder in percentage by weight; the protein source raw material is selected from a group composed of fish meal, soybean meal and the mixture of fish meal and soybean meal; the fat source raw material is selected from a group composed of fish oil, soybean oil and the mixture of fish oil and soybean oil; the sugar source raw material is starch; the auxiliary material is selected from a group composed of composite vitamin, mixed mineral substance, microcrystalline cellulose, soybean lecithin powder, DL-methionine, monocalcium phosphate, choline chloride, ascorbic acid, sleeve-fish ointment, and the mixture of composite vitamin, mixed mineral substance, microcrystalline cellulose, soybean lecithin powder, DL-methionine, monocalcium phosphate, choline chloride, ascorbic acid, sleeve-fish ointment; the feed is composed of the following nutritional ingredients in percentage by weight: 41.7-42.4 percent of crude protein, 12.3-12.7 percent of crude fat, and carbohydrate, crude fibre, ash and moisture in balanced amount. The sparus macrocephalus feed provided by the invention has the advantages as follows: the weight gain rate and survival rate of sparus macrocephalus are higher, the using amount of fish meal is reduced, and the level of protein requirements of fingerling is reduced.

Description

technical field [0001] The invention relates to the field of fish feed, in particular to a black sea bream feed containing 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 fish feed ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K50/80A23K10/30A23K10/22A23K10/37A23K20/174A23K20/26A23K20/20A23K20/10A23K20/142A23K20/147A23K20/158A23K20/163A23K40/10A23K40/30
CPCY02A40/818Y02P60/87
Inventor 温小波宣雄智朱大世李升康
Owner SHANTOU UNIV
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