Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-effective compound feed for late stage of tilapia cultivation and preparation method thereof

A tilapia and feed technology, applied in animal feed, animal feed, application and other directions, can solve the problems of low disease resistance, waste of resources, low feed utilization rate, etc., to prolong the storage time, reduce the loss of powder, protein Efficiency improvement effect

Inactive Publication Date: 2012-12-12
YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
View PDF4 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, the research on tilapia compound feed is mainly concentrated in the early stage of growing (<10g), and less attention is paid to the nutrition research of tilapia in the later stage of growing, and the fish itself has different nutritional requirements due to different growth stages. This leads to a gap in the nutritional parameters of tilapia feed in the later stage of growing, and it is impossible to accurately design the feed formula for raising it
However, at present, the feed preparation of tilapia in the late growing period mainly refers to the nutritional parameters of juvenile fish, which also leads to the low feed utilization rate of tilapia in the late growing period, nutritional diseases such as fatty liver, and resistance to diseases in the fish body. low strength
On the one hand, this affects the economic benefits of aquaculture producers. On the other hand, the waste of resources also causes environmental pollution such as excessive nitrogen and phosphorus discharge in aquaculture water.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-effective compound feed for late stage of tilapia cultivation and preparation method thereof
  • High-effective compound feed for late stage of tilapia cultivation and preparation method thereof
  • High-effective compound feed for late stage of tilapia cultivation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A tilapia feed (no fishmeal, common vegetable protein raw material), the mass fraction of its main nutrients is as follows, and the specific raw material selection and ratio are shown in Table 1:

[0035]

[0036] A kind of preparation method of tilapia rearing stage feed, its steps are:

[0037] A. After each raw material is crushed through a 40-mesh sieve, the protein source raw materials (soybean meal, rapeseed meal, feather meal, meat and bone meal, peanut meal, cotton meal, corn gluten meal) and carbohydrate raw materials contained in the formula shown in Table 1 are mixed (Secondary flour, corn flour, oily rice bran, wheat bran) are evenly mixed;

[0038] B. Mix multivitamins, multimineral salts, choline chloride, vitamin E, vitamin C, ferrous sulfate pentahydrate, and coated amino acids with the previous powder in stages;

[0039] C. Carry out extruded granulation processing according to conventional aquatic extruded feed processing equipment and methods;

...

Embodiment 2

[0043] A kind of tilapia feed (without fish meal, adding low-priced feed sources such as feather meal, meat and bone meal and palm oil), the mass fraction of its main nutrients is as follows, and the specific raw material selection and proportioning are shown in Table 1:

[0044]

[0045] The preparation steps are the same as in Example 1.

[0046] Raise about 220g of Gifu tilapia for 56 days with the feed formulated by formula 2 shown in Table 1, and use a commercially available certain tilapia equivalent feed as a contrast, and raise it in a pond cage (1m × 1m × 1.5m), 5 repetitions per group, 20 tails per repetition. After the experiment, the final body weight of the fish in the formula 2 group was 548g, the weight gain rate was 149%, the specific growth rate was 1.63, the protein efficiency was 259%, and the feed coefficient was 1.35, which were significantly improved compared with the control diet. Serum triglyceride, total cholesterol, aspartate aminotransferase, ala...

Embodiment 3

[0048] A tilapia feed (containing a small amount of fishmeal, without soybean meal), the mass fraction of its main nutrients is as follows, and the specific raw material selection and proportioning are shown in Table 1:

[0049]

[0050] The preparation steps are the same as in Example 1.

[0051] With the formula 3 feed shown in Table 1, about 218g of Gifu tilapia was fed for 56 days, and a commercially available tilapia equivalent feed was used as a control, and it was raised in a pond cage (1m×1m×1.5m). Each group 5 repetitions, 30 tails per repetition. After the experiment, the final body weight of the fish in the formula 3 group was 567g, the weight gain rate was 160%, the specific growth rate was 1.70, the feed coefficient was 1.32, and the protein efficiency was 266%. All indicators were significantly better than the control feed. Simultaneous serum complement C 3 、C 4 The content of S. iniae significantly increased, and after infection with Streptococcus iniae, i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high-effective compound feed for the late stage of tilapia cultivation and a preparation method thereof. The high-effective compound feed is prepared with protein source material, grease, carbohydrate material, vitamin complex, compound mineral salt, coated methionine, coated lysine, monocalcium phosphate and other materials according to certain proportion. The preparation method includes the following steps: (A) the materials are respectively ground, and the protein source material and the carbohydrate material in the formula are mixed; (B) the vitamin complex, the compound mineral salt, choline chloride, the coated methionine, the coated lysine and amino acid are sequentially mixed with the protein source material and the carbohydrate material; (C) puffing and pelletization are carried out according to conventional puffed aquatic product feed processing equipment and method; (D) the mixture of bean oil, corn oil and palm oil is sprayed onto the pellet-like feed. The nutrients in the feed reach accurate contents, the growth performance and immune function of tilapias can reach an optimal level, the digestibility of the feed materials is increased, the powder loss in the production of the feed is reduced, and meanwhile, the storage time of the feed is prolonged.

Description

technical field [0001] The invention relates to the technical field of aquatic feed, more specifically to a tilapia feed, and also to a preparation method of a tilapia feed. The feed is mainly suitable for late-growing tilapia with a body weight of more than 200 g. Background technique: [0002] Tilapia has the characteristics of fast growth, strong fecundity, miscellaneous food habits, and strong disease resistance. It is suitable for high-density intensive farming in ponds, cages, and running pools in fresh or brackish water, and the tilapia has a high meat yield. The product is moderately priced and welcomed by consumers at home and abroad. Therefore, it has become a high-quality fish recommended by the Food and Agriculture Organization of the United Nations (FAO) to promote farming all over the world. It is also one of the leading aquaculture species in my country. At the same time, my country is also the largest tilapia in the world. export country. Since the National Bu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A23K1/18A23K1/16A23K1/175A23K1/14A23K1/10
Inventor 田娟文华蒋明刘伟吴凡杨长庚
Owner YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com