Macrobrachium rosenbergii compound feed using daphnia magna dry powder for partially replacing fish meal

A technology of Macrobrachium rosenbergii, replacing fishmeal, applied in animal feed, animal feed, application, etc., can solve the problems of increasing and soaring costs, and achieve the effects of maintaining health, strong anti-oxidative stress ability, and remarkable survival rate

Inactive Publication Date: 2017-10-10
SHANGHAI OCEAN UNIV
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, affected by the state of fishery resources in the world, the soaring price of

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
  • Macrobrachium rosenbergii compound feed using daphnia magna dry powder for partially replacing fish meal
  • Macrobrachium rosenbergii compound feed using daphnia magna dry powder for partially replacing fish meal
  • Macrobrachium rosenbergii compound feed using daphnia magna dry powder for partially replacing fish meal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The nutritional value evaluation of embodiment 1, Daphnia macrophage dry powder

[0031] 1.1 Experimental materials

[0032] The Daphnia magna used in the experiment was taken from the artificially cultivated earthen ponds of the Zhuhang Base in Shanghai in spring, summer, autumn and winter from August 2015, and the Daphnia magna in the sewage in summer was taken from Julong Lake in Yancheng, Jiangsu. Drain the surface water, put the fresh samples in an oven at 60°C, and get air-dried samples after five hours, crush them, sieve them through a 60-mesh sieve, and store them in a -20°C refrigerator for testing.

[0033] 1.2 Experimental design

[0034] To compare the nutritional composition of Daphnia magna in different seasons in artificially cultivated earthen ponds, including conventional nutrients, amino acids and fatty acids, and to compare with Daphnia magna in summer sewage. According to NY5072-2002 safety limit of pollution-free food and fish compound feed, all s...

Embodiment 2

[0061] Embodiment 2, the replacement effect of Daphnia magna dry powder to fish meal

[0062] As can be seen from Example 1, among the artificially cultivated Daphnia magna and sewage Daphnia magna in four seasons, compared to that, the artificially cultivated Daphnia magna in spring has lower nutrition, so 0%, 5%, and 10% are used respectively in this embodiment. %, 15% and 20% (D0, D5, D10, D15, D20 groups) artificially cultivated spring Daphnia magna and other proteins replace fish meal in the feed. If the replacement effect is better, the artificially cultivated Daphnia magna in autumn and winter with higher nutritional value and Daphnia magna in sewage have higher fishmeal substitution value. The initial body weight of the Macrobrachium rosenbergii raised at this stage is about 2.18g, and each group has four parallels, and each parallel has 62 tails. It adopts the indoor breeding method in a low-level cement pond (the specification is 5m*5m*0.5m), and raises it for 61 day...

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 macrobrachium rosenbergii compound feed using a daphnia magna dry powder for partially replacing fish meal. According to the macrobrachium rosenbergii feed, the daphnia magna dry powder is used for replacing 21.7 percent to 44.0 percent of fish meal. The optimum dosage of the daphnia magna dry powder is 5 percent to 20 percent, and the dosage of the fish meal is reduced to 16.8 percent to 26.7 percent from 30 percent. The experiment proves that compared with non-replaced fish meal control groups, macrobrachium rosenbergii hepatopancreas SOD, serum MDA, serum glutamic pyruvic transaminase, serum glutamic oxalacetic transaminase in replacement groups are lower than those in the control groups in different degrees, so that by using the daphnia magna dry powder for replacing the fish meal, the macrobrachium rosenbergii can have a better anti-oxidative stress capability, and is more beneficial for keeping the health of hepatopancreas.

Description

technical field [0001] The invention belongs to the field of aquaculture aquatic animal nutrition and feed science, and in particular relates to a macrobrachium rosenbergii compound feed which partially replaces fish meal with daphnia magna dried powder. Background technique [0002] Fish meal has high protein, balanced nutrition, high digestion and absorption rate and growth-promoting effect, so in the current aquaculture, high-quality fish meal is still used as the preferred protein raw material. It is reported that 35% of the global catch is used to produce fish meal. 65% of fishmeal is used as aquafeed. However, in the near future, it will be difficult for the global fishing industry to sustain the demand of aquaculture in the way of fish farming. Therefore, it is imperative to search for protein alternative raw materials, and the saving effect of animal and vegetable protein raw materials on fish meal has become a research hotspot in the aquaculture industry. [0003]...

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): A23K10/20A23K10/22A23K50/80
CPCA23K10/20A23K10/22A23K50/80Y02A40/818
Inventor 华雪铭冯悦黄仲园
Owner SHANGHAI OCEAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap