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Breeding feed for improving resistance of cherax quadricarinatus

A technology of red crayfish and resistance is applied in the field of aquaculture feed, which can solve the problems of shrimp shelling difficulty, infection and death, water quality deterioration, etc., and achieve the effects of being beneficial to the growth of shrimp shells, improving the survival rate, and promoting proliferation.

Pending Publication Date: 2022-03-29
舒城县汇德水产科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The feed added artificially during the breeding process was not eaten in time, and after collapsing and disintegrating, it was mixed and fermented with the sludge at the bottom, resulting in deterioration of water quality and infection of shrimp, the most common being gill disease;
[0004] 2. Shrimp shelling is difficult in the breeding process, and the soft shell period is longer. In high-density farming, shrimp body damage may occur, resulting in infection and death

Method used

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  • Breeding feed for improving resistance of cherax quadricarinatus
  • Breeding feed for improving resistance of cherax quadricarinatus

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The present embodiment prepares a kind of binding agent, and concrete preparation process is as follows:

[0043] Step A1: Take high-gluten flour and baking soda according to the dosage ratio of 1kg: 10g, mix them, add water with 35% of the total mass of high-gluten flour and baking soda, stir into a paste, let stand for natural fermentation for 2 days, and obtain a fermented product;

[0044] Step A2: Put the fermented product in a 200-mesh filter bag, wash it with circulating water to obtain a white viscous product, then press it into a cake, place it in a drying oven, and dry it at 60°C until the water content is 5 %, and then grind the dried product into powder, and finally sieve through a 150-mesh sieve, and take the sieved material to obtain a binder.

Embodiment 2

[0046] The present embodiment prepares an antibacterial extract, and the specific preparation process is as follows:

[0047] Step B1: taking capillary, coptis, mugwort and flavescens and pulverizing them, adding water to soak for 10 hours, filtering and draining to obtain soaking material;

[0048] Step B2: Add absolute ethanol to the soaking material and stir to mix, then spread the mixed material on a tray, put it into a microwave device, heat for 20 minutes, and then press filter to get the filtrate;

[0049] Step B3: Take the filtrate and raise the temperature to 65°C under a negative pressure of 0.08 MPa, and take fractions to obtain an antibacterial extract;

Embodiment 3

[0051] This example prepares a kind of enzymatic hydrolysis of wheat bran, the specific preparation process is as follows:

[0052] Step C1: Mix wheat bran and glucose, add water, stir and let stand for 8 hours to swell, and make base material;

[0053] Step C2: Take xylanase and add it to a buffer solution with a pH value of 6, heat it in a water bath to 42°C, and keep it warm for 20 minutes for activation treatment;

[0054] Step C3: Add the activated enzyme solution into the base material, stir evenly, heat up to 50°C, perform enzymatic hydrolysis for 1 day, and then heat up to 90°C for inactivation to obtain an enzymolysis wet material;

[0055] Step C4: drying the enzymatically hydrolyzed wet material to a water content of 20% to obtain enzymolyzed wheat bran.

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Abstract

The invention relates to a culture feed for improving resistance of cherax quadricarinatus, and belongs to the technical field of aquaculture feeds, the feed comprises the following raw materials by weight: 67-75 parts of energy powder, 35-42 parts of fiber powder, 17-22 parts of a binder, 8-10 parts of an antibacterial extract and 10-15 parts of auxiliary ingredients, by adding the binder, the feed is of a filamentous network structure after absorbing water and expanding, and other raw materials are bonded together, so that the feed is not easy to collapse and pulverize, the collapse time in water at 25 DEG C is about 7 hours, and nutrient substances are prevented from being blended into sludge to be fermented; the added antibacterial extracting solution has anti-inflammatory and antibacterial effects and can effectively prevent and treat shrimp gill diseases; enzymolysis wheat bran, calcium-rich powder and a shelling aid are compounded in auxiliary ingredients, so that the soft shell period after shrimp shelling is effectively shortened, and the survival rate is increased; the prepared feed is balanced in nutrient elements and suitable for feeding cherax quadricarinatus.

Description

technical field [0001] The invention belongs to the technical field of aquaculture feed, and in particular relates to a culture feed for improving the resistance of red-clawed crayfish. Background technique [0002] Commonly known as Australian freshwater lobster, red claw crayfish is native to the streams in northern Australia and southern New Guinea. It has a high mortality rate in the process of artificial breeding. The main reasons are as follows: [0003] 1. The feed added artificially during the breeding process was not eaten in time, and after collapsing and disintegrating, it was mixed and fermented with the sludge at the bottom, resulting in deterioration of water quality and infection of shrimp, the most common being gill disease; [0004] 2. Shrimp shelling is difficult during the breeding process, and the soft shell period is longer. In high-density farming, shrimp body damage may occur, resulting in infection and death. [0005] Therefore, the present invention...

Claims

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Application Information

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IPC IPC(8): A23K50/80A23K10/22A23K10/20A23K10/26A23K10/37A23K10/12A23K10/30A23K10/14A23K20/158A23K20/174A23K20/24A23K30/00A23K20/22A23K40/10
CPCA23K50/80A23K10/22A23K10/20A23K10/26A23K10/37A23K10/12A23K10/30A23K10/14A23K20/158A23K20/174A23K20/24A23K30/00A23K20/22A23K40/10Y02A40/818Y02P60/87
Inventor 汤德根霍道安汤德银秦贤如董勇
Owner 舒城县汇德水产科技有限公司
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