阅读说明：本技术 一种黑褐新糠虾养殖方法 (Method for breeding neobran shrimps with brown black color ) 是由 邓自发 李勇学 谢晓玲 周蓉 陈瑶 李腾 于 2020-07-27 设计创作，主要内容包括：本发明公开了一种黑褐新糠虾养殖方法,包括以下步骤：步骤一,构建黑褐新糠虾养殖池,步骤二,养殖前一周,在步骤一中建好的养殖池内进行原生生物培育,步骤三,放养前,进行水质测控达到黑褐新糠虾幼体的养殖指标；步骤四,黑褐新糠虾的养殖；饵料投喂量一天2次。本发明的一种黑褐新糠虾养殖方法显著提高了黑褐新糠虾生长速率,增强了生存率,提高了水体的养殖密度,此外,此增养殖方法能维持水质稳定,具有显著的净水效果,适合大范围推广使用,此发明有利于推动黑褐新糠虾低成本、高效、持续稳定的养殖。(The invention discloses a method for breeding neobran shrimps with brown color, which comprises the following steps: step one, constructing a culturing pond for the neobran shrimps, step two, culturing protist organisms in the culturing pond built in the step one week before culturing, and step three, performing water quality measurement and control to reach the culturing index of the neobran shrimps before stocking; step four, breeding the neobran shrimps; the bait feeding amount is 2 times a day. The culturing method of the neofurfuraeus nigrescens provided by the invention has the advantages that the growth rate of the neofurfuraeus nigrescens is obviously increased, the survival rate is enhanced, and the culturing density of a water body is increased.)

1. A method for breeding neobran shrimps with brown black color is characterized by comprising the following steps:

step one, constructing a culturing pond for the neobran shrimps, wherein the culturing pond is constructed in a form of a cement pond, and the specification of the cement pond is 1.2m multiplied by 1 m;

step two, culturing protist in the culture pond built in the step one week before culture, and then adding nitrobacteria and EM bacteria;

before stocking, carrying out water quality measurement and control to reach the breeding index of the neobran shrimp larvae;

step four, culturing the mysid fuscoporia nigrescens, wherein the stocking density of the larvae is 56000-³Feeding special bait of 100g/m³(ii) a The bait feeding amount is 2 times a day.

2. The method for culturing the neobran fuscus nigrosporus as claimed in claim 1, wherein the bottom surface of the cement pond is in an arc transition, i.e. a U-shaped design.

3. The culturing method of neobran fuscus nigrosporus according to claim 1, wherein the specific culturing method of the primary organisms in the second step is as follows: selecting fresh dendritic coral reef live stones, soaking in a culture pond with the salinity of 28-31%, irradiating by using a halogen lamp until hyphomycete grows out of the fresh dendritic coral reef live stones, stopping illumination, and adding fresh seawater until the depth of the culture pond is 0.7 m.

4. The culturing method of neobran fuscus nigrosporus as claimed in claim 3, wherein the stacking height of the dendritic coral reef live stones in the culturing pond is 15-20 cm.

5. The culturing method of the neobran shrimps with black brown color as claimed in claim 3, wherein the halogen lamp has an illumination intensity of 8000lx, an illumination time of 16h/d, and an oxygenation of 24h/d for 10 days.

6. The method for culturing neobran fuscus nigrosporus as claimed in claim 1, wherein the weight ratio of the nitrifying bacteria to the EM bacteria in the second step is 1: 2.

7. The culturing method of the neobran fuscus nigrosporus as claimed in claim 1, wherein the culturing indexes in the third step are as follows: the water temperature is 21-25 ℃, the salinity is 28-31%, the pH value is 8.0-8.4, the COD is 7.0-7.3mg/l, the illumination is 1400-₄ ⁺-N is 0.02mg/L, NH₃-N is 0.0011mg/L, H₂S is less than 0.01 mg/L.

8. The culturing method of the neobran shrimps with black brown color as claimed in claim 1, wherein the special bait in the fourth step comprises the following raw materials by weight percent: 0.5-1.5% of garlic, 2-3% of shell powder, 48-50% of enteromorpha, 6-8% of artemia larvae, 10-20% of large flat algae in Qingdao and 20-30% of cladosporium fortunei.

9. The culturing method of the neobran shrimps with black brown color as claimed in claim 8, wherein the special bait in the fourth step comprises the following raw materials by weight percent: 1.0% of garlic, 2.5% of shell powder, 49% of enteromorpha, 7% of artemia larvae, 15% of large flat algae of Qingdao and 25% of furcate branch algae.

10. The culturing method of the neobran fuscus nigrosporus as claimed in claim 9, wherein the specific preparation method of the special bait comprises the following steps: the bait raw materials are sequentially added into a stirrer and then stirred until the materials are fully mixed, the mixing speed is 100-200r/min, and the stirring time is 15-25 min.

Technical Field

The invention relates to the technical field of breeding, and particularly relates to a method for breeding neobran shrimps.

Background

The neobran prawns with the brown color have the advantages of high protein content, balanced and rich nutrition, reasonable amino acid combination, strong palatability, high nutritional value and easy digestion, can enhance the disease resistance of cultured objects, has important effects on the aspects of opening, growth and development of aquatic culture biological larvae, improving the survival rate of the larvae, preventing diseases and the like, is one of key factors in the seedling culture stage of the cultured objects, and occupies an important position in aquaculture.

The neobran shrimps with the brown color mainly eat algae, small protozoa, copepods, humus and the like, and the market demand of the neobran shrimps with the brown color is more and more increased along with the rapid development of the breeding industry.

At present, the neofurfuraeus fuscus is mainly cultivated in a seawater pond in an extensive mode, the flow rate of a water body is unstable, the bottom material and the water quality of the pond are difficult to control, the ecological system of the cultivation water body is unstable, and the maintenance cost is high. In addition, no proper proliferation bait is available in the culture process, and the yield of the neomysidacea melanobrown is low. In conclusion, the existing traditional culture mode is not beneficial to large-scale high-efficiency culture of the neomysid fuscus nigrosporus.

Disclosure of Invention

The invention aims to provide a method for breeding neobran shrimps with brown color, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a method for breeding neobran shrimps with brown color comprises the following steps:

step one, constructing a culturing pond for the neobran shrimps, wherein the culturing pond is constructed in a form of a cement pond, and the specification of the cement pond is 1.2m multiplied by 1 m;

step two, culturing protist in the culture pond built in the step one week before culture, and then adding nitrobacteria and EM bacteria;

before stocking, carrying out water quality measurement and control to reach the breeding index of the neobran shrimp larvae;

step four, culturing the mysid fuscoporia nigrescens, wherein the stocking density of the larvae is 56000-³Feeding special bait of 100g/m³(ii) a The bait feeding amount is 2 times a day.

Preferably, the bottom surface of the cement pool is in arc transition, namely, a U-shaped design is adopted.

Preferably, the specific cultivation method for cultivating the living organisms in the step two is as follows: selecting fresh dendritic coral reef live stones, soaking in a culture pond with the salinity of 28-31%, irradiating by using a halogen lamp until hyphomycete grows out of the fresh dendritic coral reef live stones, stopping illumination, and adding fresh seawater until the depth of the culture pond is 0.7 m.

Preferably, the stacking height of the dendritic coral reef live stones in the culture pond is 15-20 cm.

Preferably, the halogen lamp has the illumination intensity of 8000lx, the illumination time of 16h/d, and the oxygenation of 24h/d for 10 days.

Preferably, the weight ratio of the nitrifying bacteria to the EM bacteria in the second step is 1: 2.

Preferably, the breeding indexes in the third step are as follows: the water temperature is 21-25 ℃, the salinity is 28-31%, the pH value is 8.0-8.4, the COD is 7.0-7.3mg/l, the illumination is 1400-₄ ⁺-N is 0.02mg/L, NH₃-N is 0.0011mg/L, H₂S is less than 0.01 mg/L.

Preferably, the specially-made bait in the fourth step comprises the following raw materials in percentage by weight: 0.5-1.5% of garlic, 2-3% of shell powder, 48-50% of enteromorpha, 6-8% of artemia larvae, 10-20% of large flat algae in Qingdao and 20-30% of cladosporium fortunei.

Preferably, the specially-made bait in the fourth step comprises the following raw materials in percentage by weight: 1.0% of garlic, 2.5% of shell powder, 49% of enteromorpha, 7% of artemia larvae, 15% of large flat algae of Qingdao and 25% of furcate branch algae.

Preferably, the specific preparation method of the special bait comprises the following steps: the bait raw materials are sequentially added into a stirrer and then stirred until the materials are fully mixed, the mixing speed is 100-200r/min, and the stirring time is 15-25 min.

Compared with the prior art, the invention has the following beneficial effects:

(1) the bottom surface of the culture pond is in arc transition, so that the stable flow of water flow and the stable flow speed of the water flow are ensured; the bottom dead angle of the traditional breeding cylinder body along the water flow direction is eliminated, and the phenomenon that residual bait and excrement are accumulated at the bottom dead angle is eliminated, so that the water quality is better controlled, and the bait is efficiently utilized.

(2) The dendritic coral reef live stones are selected to be cultured by protozoon groups, the specific surface porous structure and the specific calcium materials of the dendritic coral reef live stones provide a good living environment for the growth of protozoon and planktonic organisms in marine organisms, the diversity of organism types and community structures in the water body is obviously enhanced, and the culture of protozoon communities not only provides more baits for the propagation and culture of the myeomysis fuscesens, enhances the survival rate and the growth rate of the myeomysis fuscesens, but also improves the micro-ecological stability of the water body, and ensures the stability of the culture water body.

(3) The nitrifying bacteria mainly control the concentration of the ammonia produced in the water in the culture pond and play an important role in the purification process of the nitrogen circulating water quality; the EM is a mixed bacterium which generally comprises beneficial bacteria such as spore bacteria, saccharomycetes, lactic acid bacteria and the like, and can be used for preventing and treating breeding diseases, treating sewage and the like. Can improve the growth speed of the cultured organisms, inhibit water pathogen and improve the disease resistance of the cultured organisms; the strain ratio influences: 1:2, the normal functions of the floras of the two parties can be stabilized, and if the other concentrations are adopted, the two floras compete for nutrients and oxygen in the water body, an antagonistic effect is generated, and the normal functions of the floras of the two parties are influenced.

(4) The special bait comprises Bulbus Allii, shell powder, Enteromorpha prolifera, artemia larva, Chlorella, Pandalus islets and Cladosiphon okamuranus, Enteromorpha prolifera, Pandalus islets and spherulesThe algae contains a large amount of algae protein and algae polysaccharide, and can remarkably improve the immunocompetence of the neobran nodorum nigrosporum. The cladosporium cucumerinum can obviously inhibit the proliferation of vibrio in intestinal tracts of crustaceans, can improve and prevent the disease occurrence of the black brown neobran shrimps, and can improve the survival rate of the black brown neobran shrimps. The shell powder enhances the water body weight Ca²⁺The method not only can maintain the stability of the pH value of the water body, but also can promote the hardening of the shells of the neobran shrimps, can effectively prevent the mutual cannibalism of the neobran shrimps during the shelling period, and reduces the death rate of the neobran shrimps during the shelling period.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.