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Domestication method for feeding wild tuna with artificial compound feed and artificial compound feed

A technology for artificial compound feed and tuna, which is applied in the field of aquatic product breeding feed, can solve the problem of tuna relying on fresh bait and other problems, and achieve the effects of improving tuna physique, improving disease resistance and good palatability.

Pending Publication Date: 2019-11-12
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The first purpose of the present invention is to provide a domestication method for wild tuna to eat artificial compound feed, solve the problem that tuna depends on eating fresh bait, and realize the domestication of wild tuna

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] An artificial compound feed for domestication of wild tuna is prepared through the following steps:

[0038] (1) Thaw the frozen South China Sea kite squid at 4°C, add 2.5 times the weight of 4°C normal saline and rinse for 12 minutes;

[0039] (2) Add 2.5% salt solution with a concentration of 6 times the weight, soak for 2 hours at 4°C, take out and drain, and grind into fish paste with a meat grinder;

[0040](3) the kite cuttlefish paste and the premixed powder are fully mixed into surimi in a weight ratio of 2.5:1;

[0041] (4) Adding a weight ratio of 0.3% (g·kg -1 ) of Bacillus subtilis powder, stirred evenly at a high speed, pelleted into slow-sinking expanded pellet feed with an extruded pellet feed machine, and stored at -20°C for later use.

[0042] The above-mentioned premixed powder composition (percentage by weight): 37% of white fish meal, 25% of flour, 4% of fish oil, 9% of spirulina powder, 14% of soybean meal, 2% of rapeseed meal, 2% of yeast, 4% of ...

Embodiment 2

[0054] A kind of artificial compound feed for domestication of wild tuna provided in this embodiment is prepared through the following steps:

[0055] (1) Thaw the frozen South China sea kite squid at 4°C, add 3 times the weight of 4°C normal saline and rinse for 12 minutes;

[0056] (2) Add 2.5% salt solution with a concentration of 6 times the weight, soak for 2 hours at 4°C, take out and drain, and grind into fish paste with a meat grinder;

[0057] (3) the kite cuttlefish paste and the premixed powder are fully mixed into surimi in a weight ratio of 1.5:1;

[0058] (4) Add 0.1% (g·kg -1 ) of Bacillus subtilis powder, stirred evenly at a high speed, pelleted into slow-sinking expanded pellet feed with an extruded pellet feed machine, and stored at -20°C for later use.

[0059] The above-mentioned premixed powder composition (percentage by weight): 41% of white fish meal, 23% of flour, 2% of fish oil, 10% of spirulina powder, 13% of soybean meal, 2% of rapeseed meal, 2% of...

Embodiment 3

[0062] A kind of artificial compound feed for domestication of wild tuna provided in this embodiment is prepared through the following steps:

[0063] (1) Thaw the frozen South China sea kite squid at 4°C, add 2 times the weight of normal saline at 4°C and rinse for 15 minutes;

[0064] (2) adding 5 times the concentration of the weight is 2.5% salt solution, soaking at 4°C for 2.5 hours, taking out and draining, and twisting into fish paste with a meat grinder;

[0065] (3) The kite squid paste and the premixed powder are fully mixed into surimi in a weight ratio of 2:1;

[0066] (4) Adding 0.2% (g kg -1 ) of Bacillus subtilis powder, stirred evenly at a high speed, pelleted into slow-sinking expanded pellet feed with an extruded pellet feed machine, and stored at -20°C for later use.

[0067] The above-mentioned premixed powder composition (percentage by weight): 35% of white fish meal, 25% of flour, 4% of fish oil, 10% of spirulina powder, 15% of soybean meal, 2% of rapes...

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Abstract

The invention provides a domestication method for feeding wild tuna with artificial compound feed, including the steps of 1, gathering trapped wild tuna in a deep-sea wind and wave resistant net cageand performing pretreatment for domestication; 2, feeding the tuna with baits, gradually feeding the tuna with artificial compound feed rather than fresh baits, performing domestication management onthe tuna, so as to complete domestication of the wild tuna, wherein the domestication management includes feeding time management, feeding way management and feeding amount management. The domestication method for feeding wild tuna with artificial compound feed effectively overcomes the industrial difficulty that tuna only feeds on fresh baits and fills the gap in feeding the tuna with artificialfeed; the feeding rate is up to 90% and the specific growth rate can be up to 20-30% by application of the domestication method.

Description

technical field [0001] The invention belongs to the technical field of aquatic product breeding feed, and in particular relates to a domestication method for wild tuna feeding on artificial compound feed, and also relates to an artificial compound feed. Background technique [0002] Tuna, also known as tuna or tuna, belongs to the order Teleost and Perciformes in taxonomy. It is a group of large and medium-sized pelagic fish distributed in middle and low latitude oceans or open seas, and has high economic value. . Tuna meat is delicious, nutritious, rich in protein, unsaturated fatty acids, vitamins, trace elements, etc., and living in less pollution-free offshore areas and coastal waters all year round. It is regarded as a green, safe, and pollution-free food, so it is It is recommended by the International Society of Nutrition as one of the three most nutritious fish in the world, and it is also known as "undersea gold". Medically, tuna has the functions of protecting th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K61/13A23K50/80A23K10/22A23K10/18A23K10/30A23K20/158A23K10/16A23K10/37A23K20/174A23K20/105A23K20/24A23K20/22A23K20/20A23K20/26A23K20/142
CPCA23K10/16A23K10/18A23K10/22A23K10/30A23K10/37A23K20/105A23K20/142A23K20/158A23K20/174A23K20/22A23K20/24A23K20/26A23K20/30A23K50/80A01K61/10A01K61/13Y02P60/87Y02A40/81
Inventor 胡静马振华于刚吴洽儿周胜杰杨蕊赵旺陈旭杨其彬
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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