Preparation method of microbial kelp degummed fermented feed and application thereof in stichopus japonicus culture

Abstract

The invention discloses a preparation method of a microbial kelp degummed fermented feed and application thereof in stichopus japonicus culture. The method includes the step of adding a microecological preparation capable of degrading algin in kelp into a kelp based basic feed to perform fermentation. The basic feed is composed of the following components by mass percentage: 45-55% of kelp powder, 5-15% of fish meal, 25-35% of sea mud, 5-10% of shell powder, and 1-5% of compound vitamin and minerals. The dosage of the microecological preparation accounts for 1-5% of the mass of the basic feed. The feed provided by the invention can significantly enhance the digestibility and utilization of stichopus japonicus to kelp, meets the needs of stichopus japonicus growth for nutrition and energy level, effectively solves the high quality bait sargassum thunbergii resource shortage problem of stichopus japonicus, has raw material value adding function, and is low in cost. Under good ecological conditions, the feed provided by the invention can reduce the destruction of residual bait to aquaculture water, can promote stichopus japonicus immunity to certain degree, and avoids the use of antibiotics.

Description

Technical field

[0001] The invention relates to the technical field of feed, and more specifically to a method for preparing low-cost environmentally friendly sea cucumber microbial degummed kelp fermented feed with raw material value-added functions. Background technique

[0002] At present, sea cucumber is the economic species of marine aquaculture with the highest domestic value in my country. According to statistics, the annual output value of sea cucumbers nationwide exceeded 30 billion in 2011. With the transition from extensive to intensive aquatic breeding, research on feed of sea cucumbers has attracted more and more attention from the industry. The cost of feed for intensive aquaculture accounts for more than 70% of the total cost of aquaculture. Nutritional issues have always been a bottleneck restricting the healthy development of sea cucumber aquaculture. Among them, the lack of high-quality bait, low feed utilization and residual bait corrupting water quality are ...

Examples

Embodiment 1

[0020] Step 1: Pretreatment of feed ingredients, drying until the water content is not higher than 15%, and coarsely pulverizing to 100-200 mesh; among them, the feed ingredients are kelp meal, fish meal, sea mud, shell powder and compound vitamins and minerals.

[0021] Step 2: Weigh 5kg of kelp powder, 1kg of fish meal, 3kg of sea mud, 0.75kg of shell powder, 0.25kg of multivitamins and minerals;

[0022] Wherein, the compound vitamins and minerals have the same requirements as the basic feeds in the prior art for the added ingredients and quantity. A preferred way is provided here, the multivitamin and mineral components are (mg g -1 ): Thiamine hydrochloride 0.5, riboflavin 1.0, niacin 0.75, pyridoxine hydrochloride 1.5, B 12 0.05, calcium pantothenate 10, magnesium phosphate 50, choline chloride 200, vitamin K2, vitamin A acetate 0.6, vitamin E 10, α-cellulose 723.6; MgSO 4 -7H 2 O 100,ZnSO 4 -7H 2 O 3,CoCl 2 -6H 2 O 1,MnSO 4 -H 2 O 1,Al Cl 3 -6H 2 O 0.2, FeSO 4 -7H 2 O 30, CuC...

Embodiment 2

[0029] Healthy sea cucumbers of similar size were selected as experimental subjects. Investigate the difference between the fermented feed of the invention and the common sea cucumber feed on the growth performance of sea cucumbers. Among them, the common sea cucumber feed is produced by Dalian Sym Bioengineering Co., Ltd., and its components are 45% of Zostera powder, 25% of sea mud, 5% of fish meal, 20% of soybean meal, 2% of vitamins and minerals, and wheat Starch 3%. Before the start of the experiment, perform adaptive temporary breeding. All breeding tanks are aerated for 24 hours, using a flowing water system, protected from light, 30% of the breeding water body is replaced every day, and sewage is sucked and discharged once a week. During the entire experiment, the dissolved oxygen is ≥6mg / l, The water temperature is maintained at 16-18°C, the pH is 7.9-8.1, and the salinity is 30-32ppt. The above two kinds of feed were fed at a fixed time every day, and the feeding am...

Technical field

[0001] The invention relates to the technical field of feed, and more specifically to a method for preparing low-cost environmentally friendly sea cucumber microbial degummed kelp fermented feed with raw material value-added functions. Background technique

[0002] At present, sea cucumber is the economic species of marine aquaculture with the highest domestic value in my country. According to statistics, the annual output value of sea cucumbers nationwide exceeded 30 billion in 2011. With the transition from extensive to intensive aquatic breeding, research on feed of sea cucumbers has attracted more and more attention from the industry. The cost of feed for intensive aquaculture accounts for more than 70% of the total cost of aquaculture. Nutritional issues have always been a bottleneck restricting the healthy development of sea cucumber aquaculture. Among them, the lack of high-quality bait, low feed utilization and residual bait corrupting water quality are ...

Examples

Embodiment 1

[0020] Step 1: Pretreatment of feed ingredients, drying until the water content is not higher than 15%, and coarsely pulverizing to 100-200 mesh; among them, the feed ingredients are kelp meal, fish meal, sea mud, shell powder and compound vitamins and minerals.

[0021] Step 2: Weigh 5kg of kelp powder, 1kg of fish meal, 3kg of sea mud, 0.75kg of shell powder, 0.25kg of multivitamins and minerals;

[0022] Wherein, the compound vitamins and minerals have the same requirements as the basic feeds in the prior art for the added ingredients and quantity. A preferred way is provided here, the multivitamin and mineral components are (mg g -1 ): Thiamine hydrochloride 0.5, riboflavin 1.0, niacin 0.75, pyridoxine hydrochloride 1.5, B 12 0.05, calcium pantothenate 10, magnesium phosphate 50, choline chloride 200, vitamin K2, vitamin A acetate 0.6, vitamin E 10, α-cellulose 723.6; MgSO 4 -7H 2 O 100,ZnSO 4 -7H 2 O 3,CoCl 2 -6H 2 O 1,MnSO 4 -H 2 O 1,Al Cl 3 -6H 2 O 0.2, FeSO 4 -7H 2 O 30, CuC...

Embodiment 2

[0029] Healthy sea cucumbers of similar size were selected as experimental subjects. Investigate the difference between the fermented feed of the invention and the common sea cucumber feed on the growth performance of sea cucumbers. Among them, the common sea cucumber feed is produced by Dalian Sym Bioengineering Co., Ltd., and its components are 45% of Zostera powder, 25% of sea mud, 5% of fish meal, 20% of soybean meal, 2% of vitamins and minerals, and wheat Starch 3%. Before the start of the experiment, perform adaptive temporary breeding. All breeding tanks are aerated for 24 hours, using a flowing water system, protected from light, 30% of the breeding water body is replaced every day, and sewage is sucked and discharged once a week. During the entire experiment, the dissolved oxygen is ≥6mg / l, The water temperature is maintained at 16-18°C, the pH is 7.9-8.1, and the salinity is 30-32ppt. The above two kinds of feed were fed at a fixed time every day, and the feeding am...

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