Feed additive for improving survival rate of large yellow croaker fry

A feed additive and survival rate technology, applied in the field of feed additives to improve the survival rate of large yellow croaker fry, can solve the problems of slow growth, small size, and restrictions on the healthy development of the large yellow croaker industry

Inactive Publication Date: 2020-05-01
芜湖市春正农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The degradation of large yellow croaker germplasm resources has seriously affected the quality of large yellow croaker species, resulting in a greatly reduced survival rate, disease resistance and environmental adaptability of large yellow croaker fry, resulting in slow growth, many diseases, long breeding cycles, Phenomena such as high bait coefficient and small size seriously restrict the sustainable and healthy development of my country's large yellow croaker industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A feed additive for improving the survival rate of large yellow croaker fry, calculated by weight percentage, comprising the following raw materials:

[0024] 35% of tea fertilizer, 13% of astaxanthin, 5% of glutathione synthase, 15% of glycerin, 4% of carboxymethyl dextran and the rest are medical stone powder. Glutathione peptide synthase is beta-cyclodextrin-coated glutathione peptide synthase.

[0025] The preparation method of tea fertilizer is:

[0026] 1) adding zinc methionine to tea leaves, adding an appropriate amount of water, beating and pulverizing to obtain a slurry; the amount of water added is 8 times the weight of the tea leaves. The addition amount of zinc methionine is 6% of the weight of tea leaves.

[0027] 2) Add sodium alginate and ammonium molybdate to the slurry and mix evenly, react at 120° C. for 3 hours under airtight conditions, and then cool to room temperature to obtain tea fertilizer. The added amount of sodium alginate is 1.6% of the ...

Embodiment 2

[0029] A feed additive for improving the survival rate of large yellow croaker fry, calculated by weight percentage, comprising the following raw materials:

[0030] 42% of tea fertilizer, 10% of astaxanthin, 7% of glutathione synthase, 12% of glycerin, 2% of carboxymethyl dextran and the balance is medical stone powder. Glutathione peptide synthase is beta-cyclodextrin-coated glutathione peptide synthase.

[0031] The preparation method of tea fertilizer is:

[0032] 1) adding zinc methionine to tea leaves, adding an appropriate amount of water, beating and pulverizing to obtain a slurry; the amount of water added is 5 times the weight of the tea leaves. The addition amount of zinc methionine is 4% of the weight of tea leaves.

[0033] 2) Add sodium alginate and ammonium molybdate to the slurry and mix evenly, react at 150° C. for 2 hours under airtight conditions, and then cool to room temperature to obtain tea fertilizer. The added amount of sodium alginate is 2.8% of th...

Embodiment 3

[0035] A feed additive for improving the survival rate of large yellow croaker fry, calculated by weight percentage, comprising the following raw materials:

[0036] 40% of tea fertilizer, 16% of astaxanthin, 3% of glutathione synthase, 17% of glycerin, 5% of carboxymethyl dextran and the rest are medical stone powder. Glutathione peptide synthase is beta-cyclodextrin-coated glutathione peptide synthase.

[0037] The preparation method of tea fertilizer is:

[0038] 1) adding zinc methionine to tea leaves, adding an appropriate amount of water, beating and pulverizing to obtain a slurry; the amount of water added is 10 times the weight of the tea leaves. The addition amount of zinc methionine is 8% of the weight of tea leaves.

[0039] 2) Add sodium alginate and ammonium molybdate to the slurry and mix evenly, react at 130° C. for 3 hours under airtight conditions, and then cool to room temperature to obtain tea fertilizer. The adding amount of sodium alginate is 3.2% of th...

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PUM

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Abstract

The invention provides a feed additive for improving the survival rate of large yellow croaker fry. The feed additive comprises the following raw materials in percentages by weight: 35-42% of a tea fertilizer, 10-16% of astaxanthin, 3-7% of glutathione synthetase, 12-17% of glycerin, 2-5% of carboxymethyl dextran and the balance of a carrier, wherein the tea fertilizer is prepared from tea leaves,zinc methionine and sodium alginate. The additive can be directly added into fish feed to enhance immunity, prevent diseases of the fry and improve the survival rate.

Description

technical field [0001] The invention belongs to the technical field of feed additives, in particular to a feed additive for improving the survival rate of large yellow croaker fry. Background technique [0002] Large yellow croaker, also known as yellow croaker, king fish, big fresh, large yellow croaker, red melon, golden dragon, golden dragon, sweet-scented osmanthus yellow croaker, big croaker, red mouth, stone head fish, stone fish, cucumber fish. It is one of the traditional four marine species. It has a flat body, a caudal peduncle that is about three times as long as the height, a large head, a well-developed mucus cavity, a slightly protruding lower jaw, a yellowish brown body, golden yellow ventral surface, and yellow or grayish yellow fins. The fish lip is orange-red, the swim bladder is relatively large, and there are 31-33 pairs of side limbs, and the front and rear branches of each side limb are of the same length. There are 2 white sagittal otoliths in the sku...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K20/142A23K10/30A23K20/163A23K20/20A23K20/105A23K20/189A23K20/28
CPCA23K10/30A23K20/105A23K20/142A23K20/163A23K20/189A23K20/20A23K20/28A23K50/80
Inventor 范俊峰
Owner 芜湖市春正农业科技有限公司
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