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Feed additive with effect of improving of nitrogen stress resistance of tilapia mossambica

A feed additive, nitrogen stress technology, applied in the direction of animal feed, animal feed, additional food elements, etc., can solve the problems of stress time death, reduced food intake, slow growth and other problems

Inactive Publication Date: 2018-04-06
安徽省家牧动物营养科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The meat of tilapia is delicious and tender, whether it is braised or cooked, the taste is excellent. According to the test, every 100 grams of Nile tilapia meat contains 20.5 grams of protein, 6.93 grams of fat, 148 kcal of calories, calcium 70 mg, sodium 50 mg, phosphorus 37 mg, iron 1 mg, vitamin B1 0.1 mg, vitamin B2 0.12 mg, tilapia has become the main farmed fish in the world and is a freshwater farmed fish cultivated by key scientific research in the world aquaculture industry , and is known as one of the main sources of animal protein in the future, but in high-density industrial aquaculture water, a large amount of ammonia nitrogen will be produced due to the ammonification of residual bait and fish excrement, and a certain concentration of ammonia nitrogen will affect fish The stress will lead to the stress response of the fish body, such as reduced food intake, slow growth, and reduced immunity. If the stress is too long, it may even cause death.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A feed additive for improving nitrogen stress tolerance of tilapia, specifically,

[0020] The feed is added with potato juice with a Baume degree of 16 as the culture substrate, and the inoculation activity is 1×10 in proportion to 1.5‰ by weight. 8 cfu / ml Saccharomyces cerevisiae, obtained after 4-stage fermentation treatment, high-temperature sterilization, and spray drying. The 4-stage fermentation process is as follows:

[0021] Inoculate brewer's yeast into potato juice and rotate and ferment at 28°C for 2 hours, which is a stage of fermentation;

[0022] After the first stage of fermentation is over, add 0.33% by weight vitamin B2 to the potato juice, and continue to rotate and ferment for 3 hours at 22°C, which is the second stage of fermentation;

[0023] After the second-stage fermentation, add 0.18% lysine by weight to the potato juice, and continue to rotate and ferment for 3 hours at 32°C, which is the third-stage fermentation;

[0024] After the three-st...

Embodiment 2

[0027] A feed additive for improving nitrogen stress tolerance of tilapia, specifically,

[0028] The feed is added with potato juice with a Baume degree of 18 as the culture substrate, and the inoculation activity is 1×10 in proportion to 1.8‰ by weight. 8 cfu / ml Saccharomyces cerevisiae, obtained after 4-stage fermentation treatment, high-temperature sterilization, and spray drying. The 4-stage fermentation process is as follows:

[0029] Inoculate brewer's yeast into potato juice and rotate and ferment at 30°C for 3 hours, which is a stage of fermentation;

[0030] After the first stage of fermentation is over, add 0.35% by weight vitamin B2 to the potato juice, and continue to rotate and ferment for 3.5 hours at 26°C, which is the second stage of fermentation;

[0031] After the second-stage fermentation, add 0.22% lysine by weight to the potato juice, and continue to rotate and ferment for 4 hours at 35°C, which is the third-stage fermentation;

[0032] After the three-...

Embodiment 3

[0035] A feed additive for improving nitrogen stress tolerance of tilapia, specifically,

[0036] The feed is added with potato juice with a Baume degree of 17 as the culture substrate, and the inoculation activity is 1×10 in proportion to 1.6‰ by weight. 8 cfu / ml Saccharomyces cerevisiae, obtained after 4-stage fermentation treatment, high-temperature sterilization, and spray drying. The 4-stage fermentation process is as follows:

[0037] Inoculate brewer's yeast into potato juice and rotate and ferment at 29°C for 2.5 hours, which is one-stage fermentation;

[0038] After the first stage of fermentation, add 0.34% by weight vitamin B2 to the potato juice, and continue to rotate and ferment for 3.2 hours at 24°C, which is the second stage of fermentation;

[0039] After the second-stage fermentation, add 0.2% lysine by weight to the potato juice, and continue to rotate and ferment for 3.5 hours at 33°C, which is the third-stage fermentation;

[0040] After the three-stage ...

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PUM

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Abstract

The invention relates to the technical field of aquatic feed additives, in particular to a feed additive for improving the nitrogen stress tolerance of tilapia. Specifically, the feed is added with potato juice as a culture substrate, and after inoculated with brewer's yeast and undergoes four-stage fermentation treatment, It is obtained after high-temperature sterilization and spray drying; it is added to tilapia feed as an additive, and acts synergistically to supplement non-enzyme antioxidant substances in tilapia, capture free radicals in the body, exert antioxidant effects, and protect phospholipid membranes Unsaturated fatty acids, maintain the normal function of the membrane, maintain the integrity of the cell membrane, and help to accelerate metabolism, combine with toxic substances in the body, convert them into non-toxic substances and excrete them from the body, and can also improve the body's stress ability, promote immunoglobulins and antibodies form.

Description

technical field [0001] The invention relates to the technical field of aquatic feed additives, in particular to a feed additive for improving the nitrogen stress tolerance of tilapia. Background technique [0002] The meat of tilapia is delicious and tender, whether it is braised or cooked, the taste is excellent. According to the test, every 100 grams of Nile tilapia meat contains 20.5 grams of protein, 6.93 grams of fat, 148 kcal of calories, calcium 70 mg, sodium 50 mg, phosphorus 37 mg, iron 1 mg, vitamin B1 0.1 mg, vitamin B2 0.12 mg, tilapia has become the main farmed fish in the world and is a freshwater farmed fish cultivated by key scientific research in the world aquaculture industry , and is known as one of the main sources of animal protein in the future, but in high-density industrial aquaculture water, a large amount of ammonia nitrogen will be produced due to the ammonification of residual bait and fish excrement, and a certain concentration of ammonia nitroge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/12A23K10/30A23K20/174A23K20/142
CPCA23K50/80A23K10/12A23K10/30A23K20/142A23K20/174
Inventor 许卫国
Owner 安徽省家牧动物营养科技有限公司
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